Relevant bibliographies by topics / Super Absorbing Polymer

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Academic literature on the topic 'Super Absorbing Polymer'

Author: Grafiati
Published: 3 June 2025
Last updated: 19 July 2025

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Journal articles on the topic "Super Absorbing Polymer"

1

Li, Jia Zhu Li, Zhan Bin Huang, Yuan Yuan Feng, and Wei Chen. "Interactive Effects of Super Absorbent Polymer and Nitrate Nitrogen." Advanced Materials Research 598 (November 2012): 323–27. http://dx.doi.org/10.4028/www.scientific.net/amr.598.323.

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The superfluous application and low use efficiency of chemical nitrate nitrogen fertilizer account for the nitrogen pollution of soil and water, threatening human’s health. In order to raise the fertilizer use efficiency, prevent from non- point pollution and nitrogen pollution of groundwater, and select superior material, five different kinds of super absorbent polymer (SAP) were selected as the objects. Through the analysis of the characteristics change of water and fertilizer absorbing of the five SAPs within different concentration of NO3--N, and the discussion of interactive effects between the SAPs and NO3--N, it is showed that: the water absorbent ability of all kinds of SAP exhibits a negative relationship with the concentration of KNO3 by decreasing of more than 50%. For all the five types of SAPs, the type of polyacrylate shows the strongest ability of water absorbing in all kinds of KNO3 concentration and the type of humic acid- polyacrylate is least affected by saline solution. The type of PAM- inorganic mineral SAP does well in nitrogen absorbing, whose absorbing amount linearly increases with the KNO3 concentration increasing, while the other types of SAP shows no obvious ability for nitrogen absorbing.
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Wei, Meng, Yu Feng Sui, Yu Hua Zhao, Quan Liang Chen, Bo Gao, and Ting Xi Li. "Effects of the Water Absorbability of Superabsorbent Prepared by Graft Copolymerization of Acrylic Acid onto Milk Proteins." Applied Mechanics and Materials 395-396 (September 2013): 377–79. http://dx.doi.org/10.4028/www.scientific.net/amm.395-396.377.

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Super Absorbent Polymer is a new type of functional polymer material developing at a high speed since the late 70’s. It can absorb water quickly . After absorbing water it becomes a kind of achromatic hydromel, and the absorbed should be: water is hard to remove even under pressure. As a result, it is usually referred as high-absorbent polymer, super absorbent polymer retention or super absorbent polymer unnecessary . This study is concerned methods of preparation and application areas of water absorbency, the influence of the initiating agent and cross-linking agent amount on the water absorbency. When the initiating agent, cross-linking agent ratio were respectively 0. 4% and 0. 2%, the water absorbency was highest. The reversibility of PH is also discussed, as well as the best methods of preparing high-water-absorbent resin cut this.
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Zeng, Lei, and E. O. Stejskal. "Characterization of a Polypropylene/Super-Absorbent Web by NMR Diffusion Studies." Applied Spectroscopy 50, no. 11 (1996): 1402–7. http://dx.doi.org/10.1366/0003702963904845.

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Super-absorbent fiber has the property of absorbing moisture up to several thousand times its original weight, undergoing significant expansion, and eventually becoming a gel. The hydrophilic super-absorbent fiber is usually blended with hydrophobic polymer fiber to form a polymer web with the ability to attract fluid and also to hold it under pressure. Because of the confining influence of pore boundaries on molecular translation, restricted diffusion measurements on fluids in porous systems, such as the super-absorbent web, contain important information about the pore morphology. In this work, we studied the diffusion of water in a web of super-absorbent polyacrylate and polypropylene fiber. We observed restricted diffusion of the water by means of the pulsed-field-gradient spin-echo (PFGSE) NMR technique. Several mathematical models were used to interpret the data and yield estimates of the gross pore dimensions and the surface-to-volume ratio of the pores.
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4

Qian, Cheng. "Modification Research of Nonwoven Ultra-Thin Absorbing Cores Used in Disposable Sanitary Products." Advanced Materials Research 197-198 (February 2011): 249–52. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.249.

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In order to investigate the possibility of reducing the amount of super-absorbing polymer (SAP) now used in the disposable sanitary products, sodium hydroxide(NaOH) was adopted to treat the cellulosic fibers used in the nonwoven absorbing cores. Firstly, NaOH of three different concentrations were used，fibers treated with the concentration of 10% have the best absorbent capacity and were filtered out for making absorbing core samples. Then, three nonwoven absorbing core samples with different treated fiber contents plus one sample of untreated fibers were developed and their absorbent capacity and absorbency rate tests were made. After analyzing, the results show that when NaOH treated fiber (concentration of 10%，finishing time of 50s) contents are 50%, nonwoven absorbing core sample has the best absorbent capacity. In the end, the possibility of using complex nonwoven structure to increase the absorbent capacity was also discussed. As a result, the absorbent capacity of the spunlacing nonwoven with complex structure is higher than the single layer spunlacing nonwoven by 33.3%.
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5

HIRASA, OKIHIKO. "Super Absorbing Polymer Hydrogels - A Lightly Crosslinked Polyelectrolyte Network." Kobunshi 45, no. 6 (1996): 410–11. http://dx.doi.org/10.1295/kobunshi.45.410.

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6

Juniansyah, Gibran, Sri Mulyati Lathifah, and Djoko Hadi Prajitno. "Synthesis Polymer Matrix Composite Epoxy-FeNdB-Mn for Radar Absorbing Material Application." International Journal of Mechanical Engineering Technologies and Applications 2, no. 1 (2021): 1. http://dx.doi.org/10.21776/mechta.2021.002.01.1.

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<p style="margin-bottom: 0in; line-height: 115%;" align="justify"><span style="font-family: Times New Roman, serif;">In recent years, applications using electromagnetic wave technology have grown rapidly. One of them is in the military field, the wave-absorbing material used to avoid detection such as aircraft, ships, or tanks requires a super thin absorbent material which has extraordinary absorption. One of the criteria for a wave absorbing material is a soft magnet and has a high Reflection Loss (RL). This research aims to see the effect of the addition of FeNdB and Mn on the synthesis of Polymer Matrix Composite (PMC) as a wave-absorbing material.</span><span style="font-family: Times New Roman, serif;">The FeNdB milling process and Mechanical Alloying (MA) with Mn were carried out using a Planetary Ball Mill (PBM) at a speed of 1000 rpm for 60 minutes. synthesis of PMC by varying the composition of epoxy resin with magnetic powder 95: 5; 90:10; 85: 5. Based on the characterization results, the optimum RL was obtained at a composition of 85: 5 with a value of -22.40 dB at a frequency of 10.40 GHz and the magnetic properties after the addition of Mn were obtained HcJ 0.116 kOe and Br 0.41 kG. PMC hardness increased with the increase of powder in the sample with the highest value of 29.2 HD Shore D and the adhesion decreased with the addition of powder in the sample with the lowest value of 1 MPa.</span></p>
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Wetzel, Alexandre Emmanuel, Ada-Ioana Bunea, Einstom Engay, et al. "Bioinspired Microstructures Polymer Surfaces with Antireflective Properties." Engineering Proceedings 4, no. 1 (2021): 15. http://dx.doi.org/10.3390/micromachines2021-09548.

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Antireflective (AR) coatings have been around for more than a century, with the simplest form dating back to Lord Rayleigh’s 1886 tarnished glass. Different approaches to obtaining AR coatings exploit index-matching, interference, or absorbing phenomena. In 2002, a novel super black surface was developed by Brown et al. at the National Physical Laboratory in the UK and soon gained significant interest among both academia and industry. Since then, scientists have been competing in a race to produce the blackest material. Although extremely valuable, existing solutions usually require complicated fabrication procedures and post-application treatments. Structural colors are ubiquitous in nature, so an interesting approach to developing AR coatings is biomimicry. Moth-eye structures are well-known for their AR properties, and they have been successfully replicated using micro- and nanofabrication methods and employed as AR coatings. Interestingly, recent studies from Harvard University highlight two types of microstructures that lead to super black coloring in nature, i.e., barbule microstructures on birds of paradise and cuticular bumps on peacock spiders. These publications provide detailed information on the shape of such natural super black microstructures and mechanisms behind the observed super black effect. Although the replication of such structures should prove extremely valuable, it has not yet been demonstrated. In this paper, we present the fabrication and characterization of AR microarrays inspired by the peacock spiders’ super black structures encountered in nature. Fabrication is done by super-resolution three-dimensional (3D) printing using two-photon polymerization of an acrylic resin. The optical properties of microstructure arrays with different shape design parameters are then characterized using a homemade reflectance/transmittance setup, which allows wavelength-dependent investigations in the ultraviolet, visible, and near-infrared ranges. The influence of the shape design parameters on the optical properties of the microarrays is then discussed with experimental measurements as well as simulations.
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Li, Guo Biao, Jun Mu Ke, and Hua Ji Zhang. "The Influence on the Absorption Properties of Paper Diapers by the SAP Mass Ratio and Fluff Pulp." Advanced Materials Research 1089 (January 2015): 33–36. http://dx.doi.org/10.4028/www.scientific.net/amr.1089.33.

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Super absorbent polymer (SAP) and fluff pulp were used as absorbing materials, and the different SAP mass ratio and fluff pulp were applied to paper diaper absorption core layer. Then, the influence of different SAP/fluff pulp in composite core layer on the paper diapers normal saline absorption rate and topsheet run-off were studied. Results showed that SAP has a significant effect on normal saline absorbency respect to fluff pulp. When the normal saline volume increased, the paper diapers absorption rate about normal saline decreased, while the topsheet run-off increased. When the SAP mass ratio to fluff pulp was 0.5:0.5, the liquid absorbency rate was 35.23 g/g, the paper diaper average absorption rate was 3.96 mL/s, and the biggest topsheet run-off was 13.25 g.
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Majchrzycka, Katarzyna, Małgorzata Okrasa, Anita Jachowicz, Justyna Szulc, Bogumił Brycki, and Beata Gutarowska. "Application of Biocides and Super-Absorbing Polymers to Enhance the Efficiency of Filtering Materials." Molecules 24, no. 18 (2019): 3339. http://dx.doi.org/10.3390/molecules24183339.

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Studies on the functionalization of materials used for the construction of filtering facepiece respirators (FFRs) relate to endowing fibers with biocidal properties. There is also a real need for reducing moisture content accumulating in such materials during FFR use, as it would lead to decreased microorganism survival. Thus, in our study, we propose the use of superabsorbent polymers (SAPs), together with a biocidal agent (biohalloysite), as additives in the manufacturing of polypropylene/polyester (PP/PET) multifunctional filtering material (MFM). The aim of this study was to evaluate the MFM for stability of the modifier’s attachment to the polymer matrix, the degree of survival of microorganisms on the nonwoven, and its microorganism filtration efficiency. Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy were used to test the stability of the modifier’s attachment. The filtration efficiency was determined under conditions of dynamic aerosol flow of S. aureus bacteria. The survival rates (N%) of the following microorganisms were assessed: Escherichia coli and Staphylococcus aureus bacteria, Candida albicans yeast, and Aspergillus niger mold using the AATCC 100-2004 method. FTIR spectrum analysis confirmed the pre-established composition of MFM. The loss of the active substance from MFM in simulated conditions of use did not exceed 0.02%, which validated the stability of the modifier’s attachment to the PP/PET fiber structure. SEM image analysis verified the uniformity of the MFM structure. Lower microorganism survival rates were detected for S. aureus, C. albicans, and E. coli on the MFM nonwoven compared to control samples that did not contain the modifiers. However, the MFM did not inhibit A. niger growth. The MFM also showed high filtration efficiency (99.86%) against S. aureus bacteria.
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1Rahul, Saini &. 2Dr. Umesha C. "APPLICATION OF HYDROGEL ENHANCING THE FIELD CROP PRODUCTION: A REVIEW." MULTILOGIC IN SCIENCE XIII, no. XXXXVI (2023): 691–94. https://doi.org/10.5281/zenodo.7852979.

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In arid and semiarid region water are most limiting factor that hinder the crop production. The super absorbent polymer having capacity to absorb water from the moist soil. It is new technique to water management under the stressed condition to conserve the soil moisture near the crop zone by reducing evaporation, deep percolation, and runoff losses. Agricultural hydrogel are water absorbing granules which swell their original size and store huge amount of water and release it back to soil for mitigating crop water demand at time when the crop rhizosphere zones dries up under drought condition. It can play many roles in agriculture including soil water retainer, nutrient and pesticides carrier, seed coating material and soil erosion reducer etc. it can improve the soil physiochemical, hydrophysical and biological properties of soil and decreasing the frequency of irrigation. Hydrogel can improve the water and nutrient use efficiency and boosting the yield and quality of the crops. It is biodegradable materials are non- toxic to soil, crop and environment. Hence, the application of hydrogel polymer will be feasible technological tool which boost the crop production in water deficit areas. 
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Dissertations / Theses on the topic "Super Absorbing Polymer"

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Nystrand, Christoffer. "Feasibility of lignocellulose as feedstock for biological production of super absorbent polymers." Thesis, Linköpings universitet, Teknisk biologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60743.

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Super absorbent polymers (SAP) can absorb liquid many times its own weight and is used in diapers and incontinence pads. The most common type of SAP is cross-linked polyacrylic acid. The production of acrylic acid uses crude oil as starting material. This means that the final price of acrylic acid is affected by the price of crude oil which is expected to rise. This has led to an increasing interest in developing a sustainable bioproduction process that uses renewable lignocellulosic raw material for the making of acrylic acid. Lignocellulose is the material that plants and trees consist of and it contains big amounts of sugar. Sugar molecules in lignocellulose can serve as substrate for microorganisms that can transform them into 3-hydroxipropionic acid, which in turn can be converted to acrylic acid. In order to use the sugar molecules from lignocellulose, some type of pretreatment is required. However, the pretreatments that are available today are not efficient enough to be applied on a large scale and some also cause the formation of microbial inhibitors. The microbial conversion of sugar to 3-hydroxipropionic acid do not show sufficient efficacy so far, but the process is under development and improvements are regularly made. Furthermore would it be advantageous if polymerization of acrylic acid could be made directly in the fermentation broth without any energy consuming separation stepsAttempts to polymerize acrylic acid in fermentations broths from yeast have been performed. The SAP properties; absorption capacity, absorption capacity under pressure and gel strength were evaluated by methods commonly used in the hygiene industry. These characteristics are important if the SAP is to be used in diapers and incontinence pads. To examine what compounds in the fermentations broth that affected the polymerization process and SAP properties, an experimental design was made. With help of the design quantitative and statistical methods were used to determine which compound had an impact. Four groups of compounds were selected for examination; sugars, alcohols, acids and aromatic compounds. The results of the experiments conducted showed that it is possible to polymerize SAP in fermentation broth from yeast using acid pretreated spruce as sugar source. The characterization showed that the absorption capacity was unchanged while the gel strength deteriorated significantly. It was also noted that SAP polymerized in fermentations broths had strong colors in contrast to conventional SAP, which is white. Qualitative and statistical analysis showed that the aromatic compounds affected the polymerization and SAP properties negative.
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Aida, Farkish. "SAP Based Rapid Dewatering of Oil Sands Mature Fine Tailings." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24251.

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Mature fine tailings (MFT), as a mixture of residual bitumen, sand, silt, fine clay particles and water, are a byproduct of oil sands extraction. The large volume, and poor consolidation and water release ability of MFT have been causing significant economic and environmental concerns. Therefore, several studies have been implemented on finding innovative dewatering/disposal techniques. As a result, different methods have been introduced and tested at a laboratory or a field scale, yet very few of these are commercially used in the oil sands industries. Despite the extensive research, an optimal solution has not been found due to the lack of technical or economic feasibility. In the present study, a novel approach that consists of the rapid dewatering of MFT by using a super absorbent polymer (SAP) to produce dense MFT is proposed. A comprehensive laboratory investigation on the geotechnical characteristics and behavior before and after treatment of MFT is conducted. The effects of SAP based dewatering and freeze/thaw cycles on the undrained shear strength of dewatered MFT by using a vane shear apparatus are studied. Furthermore, the ability of recycled SAP to dewater and densify MFT is assessed. Finally, this study provides the results of consolidation and hydraulic conductivity testing to evaluate the void ratio versus effective stress and hydraulic conductivity of MFT. The effects on the behavior and characteristics of MFT after amendment with usage of recycled SAP are also investigated. The results indicate that SAP has the ability to significantly dewater, densify and increase the undrained shear strength of MFT. Furthermore, when subjected to freeze/thaw cycles, the MFT dewatered with SAP shows an additional increase in strength and solid content. It is also found to be possible to regenerate the polymer (still within sachets) through light thermal drying, and the regenerated SAP can still significantly dewater and thus increase the shear strength and solid content of the MFT. In addition, the obtained high solid content affects and improves the compressibility of the material, thus resulting in low initial void ratios. On the other hand, low hydraulic permeability that is derived from low initial void ratios and consolidation is improved by the freeze/thaw process due to the interconnected voids created during the freezing process.
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Vinagre, Mafalda Sofia Raimundo Coelho Guerreiro. "Influência de polímeros superabsorventes na retracção de argamassas." Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/19131.

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Hoje em dia, o desenvolvimento dos superplastificantes permite a produção de betões com menor razão água/cimento. Ao usar razões água/cimento mais baixas, os materiais científicos apresentam maior tendência para fissurar devido à retracção autogénea. Este trabalho apresenta um estudo sobre a utilização de polímeros superabsorventes (SAP) no controlo da retracção. O uso de SAPs em materiais comentícios atenua a retracção autogénea pois estes produtos permitem o fornecimento interno de água. Estes produtos podem também afectar outras propriedades, afectando as características mecânicas e a trabalhabilidade. Para análise do efeito dos SAP foram estudadas argamassas com várias concentrações deste produto, tendo como referência argamassas semelhantes sem SAP, determinando-se as retracções autogénea e total, a resistência à compressão e o módulo de elasticidade. Além de SAP, foi também utilizado um agregado leve, um outro tipo de introdutor de água, para comparação com os polímeros em estudo. /ABSTRACT: This work presents a study on the use of superabsorbent polymers (SAP) in the control of shrinkage. The use of SAPs in cementitious materials reduces the autogenous shrinkage because these products enable the internal supply of water. These materials can also affect other properties such as mechanical properties and workability. To analyze the effect of SAP, mortars containing various concentrations of this product were studied, in comparison with reference mortars without SAP. The tests performed were autogenous and total shrinkage, compressive strength and modulus of elasticity. Besides SAP, it was also used a lightweight aggregate, another type of internal supply of water, for comparison with the polymers under study.
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Pandey, Mandeep Raj. "Contaminant Transport through Soil and Effect of Bentonite and super-absorbent Polymer on Transport Parameters." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3977.

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The aim of this present research is to improve the containment properties of clayey soil by the use of bentonite and polymers as the additives. Clayey soils are generally used for the control of soil and water pollutions as they are inexpensive material. However, their applications are limited when it comes to durability of such liners in the field condition. Addition of additives to increase their efficiency by reducing the hydraulic conductivity can overcome this limitation. Generally, bentonite is used as the effective barrier additives because of their ability to render high swell and reduced hydraulic conductivity to the soil-bentonite mixtures. Due to high specific surface area and large cation exchange capacity, bentonite is always preferred for containment application. Despite their wide applicability in containment barrier, the problem with bentonite is its reduction of swell when the contaminant of interest consists of multivalent ions. Higher valency ions attach to the exchange site of bentonite and thus reduce its efficiency. To overcome these constraints the bentonite has, polymers are being used for containment applications. Normally, anionic polymers are used for such containment applications which help in increase negative charge concentration of the clayey soils. Previous studies have also proved the effectiveness of polymer in increasing the retardation factor of the soil which is due to the adsorption of contaminants to the negatively charged surface of clay. Hence attempt is also made in this thesis to study the effectiveness of super absorbent polymers when used as additive to the clayey soil. In this thesis, effectiveness of the local Bangalore soil for its use as barrier material is studied. Tests are done on the compacted sample to determine its contaminant transport properties. Because of their low hydraulic conductivities, advective flux through the barriers is negligible. In such cases, contaminant migration takes place due to the difference in concentration and this transport mechanism is known as diffusion. Laboratory test have been done to determine the diffusion coefficient of soil when the soil is saturated. For barriers and liner systems which are not fully saturated, suction adds to the hydraulic head. For unsaturated samples, although the liquid phase diffusion have been found to be nominal, head difference caused due to suction facilitates the migration of contaminants. Hence, effects of initial degree of saturation and density in contaminant transport process through soils have been examined. An attempt has been made to study unsaturated transport properties by using saturated transport parameters and unsaturated soil parameters obtained from soil-water characteristics curve. Another focus of this thesis has been towards enhancing the containment property of local soil by using additives. Effects of addition of bentonite and polymer on contaminant transport parameters of the soil have been studied. An attempt has been made to reduce the hydraulic conductivity of soil by using additives like bentonite. In addition, use of super-absorbent polymer as a novel material for barrier application has been studied to determine its suitability for local conditions. Experiments have been conducted to determine free swell, hydraulic conductivity and diffusion coefficient of soil-bentonite and soil-polymer mixes and compare them to those of local soil. To determine the effectiveness of soil-bentonite and soil-polymer mixes under the attack of concentrated solution over a long duration, chemical compatibility tests have been carried out. Micro-structural changes in the soil on addition of bentonite and polymer have been studied with the help of scanning electron microscope (SEM) images. Mineralogical changes occurring in the soil due to the additives have been studied using X-Ray Diffraction (XRD) plots. Effects of salt solution on soil-bentonite and soil-polymer mixes have also been studied by the help of SEM images and XRD plots. The final section of this thesis is on analysis of barrier performance for different conditions of densities, compaction and saturation by using numerical software CODE_BRIGHT. Transport parameters obtained from the experiments conducted in previous sections have been used as input for the analysis. A field condition of Bingipura landfill site in South Bangalore, Bangalore city has been simulated as a case study for this thesis. Time taken for contaminants to migrate from landfill to the nearby water body which is at a distance of about 122 meters is calculated for no barrier case. When barrier is provided, concentration variations of contaminant through the barrier with time are plotted and the results are compared for soil barrier, soil-bentonite barrier and soil-polymer barrier.
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Pandey, Mandeep Raj. "Contaminant Transport through Soil and Effect of Bentonite and super-absorbent Polymer on Transport Parameters." Thesis, 2017. http://etd.iisc.ernet.in/2005/3977.

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The aim of this present research is to improve the containment properties of clayey soil by the use of bentonite and polymers as the additives. Clayey soils are generally used for the control of soil and water pollutions as they are inexpensive material. However, their applications are limited when it comes to durability of such liners in the field condition. Addition of additives to increase their efficiency by reducing the hydraulic conductivity can overcome this limitation. Generally, bentonite is used as the effective barrier additives because of their ability to render high swell and reduced hydraulic conductivity to the soil-bentonite mixtures. Due to high specific surface area and large cation exchange capacity, bentonite is always preferred for containment application. Despite their wide applicability in containment barrier, the problem with bentonite is its reduction of swell when the contaminant of interest consists of multivalent ions. Higher valency ions attach to the exchange site of bentonite and thus reduce its efficiency. To overcome these constraints the bentonite has, polymers are being used for containment applications. Normally, anionic polymers are used for such containment applications which help in increase negative charge concentration of the clayey soils. Previous studies have also proved the effectiveness of polymer in increasing the retardation factor of the soil which is due to the adsorption of contaminants to the negatively charged surface of clay. Hence attempt is also made in this thesis to study the effectiveness of super absorbent polymers when used as additive to the clayey soil. In this thesis, effectiveness of the local Bangalore soil for its use as barrier material is studied. Tests are done on the compacted sample to determine its contaminant transport properties. Because of their low hydraulic conductivities, advective flux through the barriers is negligible. In such cases, contaminant migration takes place due to the difference in concentration and this transport mechanism is known as diffusion. Laboratory test have been done to determine the diffusion coefficient of soil when the soil is saturated. For barriers and liner systems which are not fully saturated, suction adds to the hydraulic head. For unsaturated samples, although the liquid phase diffusion have been found to be nominal, head difference caused due to suction facilitates the migration of contaminants. Hence, effects of initial degree of saturation and density in contaminant transport process through soils have been examined. An attempt has been made to study unsaturated transport properties by using saturated transport parameters and unsaturated soil parameters obtained from soil-water characteristics curve. Another focus of this thesis has been towards enhancing the containment property of local soil by using additives. Effects of addition of bentonite and polymer on contaminant transport parameters of the soil have been studied. An attempt has been made to reduce the hydraulic conductivity of soil by using additives like bentonite. In addition, use of super-absorbent polymer as a novel material for barrier application has been studied to determine its suitability for local conditions. Experiments have been conducted to determine free swell, hydraulic conductivity and diffusion coefficient of soil-bentonite and soil-polymer mixes and compare them to those of local soil. To determine the effectiveness of soil-bentonite and soil-polymer mixes under the attack of concentrated solution over a long duration, chemical compatibility tests have been carried out. Micro-structural changes in the soil on addition of bentonite and polymer have been studied with the help of scanning electron microscope (SEM) images. Mineralogical changes occurring in the soil due to the additives have been studied using X-Ray Diffraction (XRD) plots. Effects of salt solution on soil-bentonite and soil-polymer mixes have also been studied by the help of SEM images and XRD plots. The final section of this thesis is on analysis of barrier performance for different conditions of densities, compaction and saturation by using numerical software CODE_BRIGHT. Transport parameters obtained from the experiments conducted in previous sections have been used as input for the analysis. A field condition of Bingipura landfill site in South Bangalore, Bangalore city has been simulated as a case study for this thesis. Time taken for contaminants to migrate from landfill to the nearby water body which is at a distance of about 122 meters is calculated for no barrier case. When barrier is provided, concentration variations of contaminant through the barrier with time are plotted and the results are compared for soil barrier, soil-bentonite barrier and soil-polymer barrier. v
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Muhklisin, Ilham, and 牧克理. "Effect of Super-Absorbent Polymer on the growth and physiological responses of Corn (Zea mays) under drought stress." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/uf6u66.

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碩士<br>國立屏東科技大學<br>熱帶農業暨國際合作系<br>105<br>Global warming over the last century has been threatening agricultural world. Numerous research have been conducted and applied to solve it. Super absorbent polymers (SAPs) are compounds that have the potential to prolonge soil moisture content for certain period of time. This study aimed at observing the corn plant growth and physiological properties change under different rate of SAP concentration combined with different irrigation levels and organic fertilizers rates. The experiment I was separated into two part. First experiment focused on effect of SAP application (250 kg/ha and 0 kg/ha) combined with two irrigation intervals described as once per weeks and once per three weeks. The corn seedlings received regular irrigation (once a day) until five leaves stages then drought stress initiated. On tasseling stage, the irrigation level then splitted into two groups, one stopped irrigation while the others continued. Overall, SAP treatments showed better corn growth performance than zero SAP treatments. The SAP 250 kg/ha was the best result on all variables while cooperated with two week irrigation interval (SAP250/2WI). At full maturity stage, SAP250/2WI had the highest plant height (131 cm), highest moisture content (44%), broadest leaf width (6.9 cm), shortest root length (32.6 cm), highest chlorophyll a (0.054 mg /g), highest chlorophyll b (0.018 mg /g), highest chlorophyll total (0.072 mg /g), highest carotenoid (6.48 mg /g), highest carbohydrate content (0.3 mg/g), highest starch content (0.37 mg/g), highest transpiration rate (0.4 µmol-2s-1), highest photosynthetic rate (0.2 µmol-2s-1) lowest substomatal CO2 (112 vpm), and lowest proline content (2.5 µmol.g-1). Similarly, in prolonged drought experiment, SAP treatments (SAP250/2WIS and SAP250/3WIS) showed domination over zero SAP treatments (SAP0/2WIS AND SAP0/3WIS). Accordingly, the SAP treatments showed better plant growth performance compared to non-SAP treatments. In experiment two, the rate 375 kg/ha SAP achieved the optimum results followed by 250 kg/ha SAP treatments. The combination of 375 kg/ha SAP and 100 kg/ha organic fertilizer (SAP375/100) showed the finest result compared to all treatments in all parameters. At full maturity stage, SAP375/100 had the highest plant height (119 cm), highest moisture content (38%) broadest leaf width (5 cm), shortest root length (31.25 cm), highest chlorophyll a (0.059 mg /g), highest chlorophyll b (0.022 mg /g), highest chlorophyll total (0.080 mg /g), highest carotenoid (5.94 mg /g), highest transpiration rate (0.4 µmol-2s-1), highest photosynthetic rate (1.4 µmol-2s-1) lowest substomatal CO2 (28 vpm), and lowest proline content (1.4 µmol.g-1). In conclusion, SAP application 250 kg/ha combined with two weeks irrigation interval can enhance both morphological and physiological traits of corn plant which were positive to drought protection at 83 days after sowing. Alternatively, the combination of SAP 375 kg/ha and organic fertilizer 100 kg/ha can enhance both morphological and physiological traits of corn plant under drought stress.
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Books on the topic "Super Absorbing Polymer"

1

Mechtcherine, Viktor, and Hans-Wolf Reinhardt, eds. Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2733-5.

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Reinhardt, Hans-Wolf, and Viktor Mechtcherine. Application of Super Absorbent Polymers in Concrete Construction: State-Of-the-Art Report Prepared by Technical Committee 225-SAP. Springer London, Limited, 2012.

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Reinhardt, Hans-Wolf, and Viktor Mechtcherine. Application of Super Absorbent Polymers in Concrete Construction: State-of-the-Art Report Prepared by Technical Committee 225-SAP. Springer, 2014.

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Durability Study on Self-Curing High Performance Steel Fibre Reinforced Concrete Using Super Absorbent Polymers. ASDF International, 2017.

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Book chapters on the topic "Super Absorbing Polymer"

1

Gooch, Jan W. "Super Absorbent Fibers." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11416.

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Friedrich, Stefan. "Superabsorbent Polymers (SAP)." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_3.

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Benjamin, Stephen Rathinaraj, and Eli José Miranda Ribeiro Júnior. "Utility of Super-Absorbent Polymers in Biomedical Applications." In Properties and Applications of Superabsorbent Polymers. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1102-8_9.

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Reinhardt, Hans-Wolf, and Alexander Assmann. "Effect of Superabsorbent Polymers on Durability of Concrete." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_9.

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Kovler, Konstantin. "Effect of Superabsorbent Polymers on the Mechanical Properties of Concrete." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_8.

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Cusson, Daniel, Viktor Mechtcherine, and Pietro Lura. "Practical Applications of Superabsorbent Polymers in Concrete and Other Building Materials." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_10.

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Lura, Pietro, Karen Friedemann, Frank Stallmach, Sven Mönnig, Mateusz Wyrzykowski, and Luis P. Esteves. "Kinetics of Water Migration in Cement-Based Systems Containing Superabsobent Polymers." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_4.

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Filho, Romildo D. Toledo, Eugenia F. Silva, Anne N. M. Lopes, Viktor Mechtcherine, and Lukasz Dudziak. "Effect of Superabsorbent Polymers on the Workability of Concrete and Mortar." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_5.

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Mechtcherine, Viktor, and Lukasz Dudziak. "Effects of Superabsorbent Polymers on Shrinkage of Concrete: Plastic, Autogenous, Drying." In Application of Super Absorbent Polymers (SAP) in Concrete Construction. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2733-5_7.

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Rajeeth, T. J., B. M. Sagar, R. Arpitha, M. S. Shashank, and Manu S. Gowda. "Use of Super Absorbent Polymer with GGBS in Normal Concrete." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3371-4_58.

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Conference papers on the topic "Super Absorbing Polymer"

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"Viscoelastic Behavior of Concrete Containing Super Absorbent Polymers." In SP-278: Frontiers in the Use of Polymers. American Concrete Institute, 2011. http://dx.doi.org/10.14359/51682500.

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Ruwanpathirana, P. P. "Evaluate the Effect of Biodegradable Super Absorbent Polymers (SAPs) on Soil Hydro-physical Properties: Special Reference to Water Conservation in Agriculture." In 3rd World Conference on Engineering, Technology and Applied Science. Eurasia Conferences, 2024. https://doi.org/10.62422/978-81-974314-7-0-011.

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Efficient water management is vital for sustaining agricultural productivity and ensuring food security. Recently, super absorbent polymers (SAPs) have emerged as valuable soil amendments due to their ability to conserve water by stabilizing soil structure and enhancing soil quality. However, many commonly used SAPs are not readily biodegradable, which can result in long-term environmental pollution. This study aimed to assess the effectiveness of biodegradable SAPs as soil conditioners for addressing water scarcity in subtropical regions. Five concentrations of biodegradable Fasal Amrit polymer (EFP) (P1: 0, P2: 0.02%, P3: 0.04%, P4: 0.08%, and P5: 0.12%) were tested to evaluate their impact on soil hydraulic properties. Soil water retention curves (SWRCs) were generated, and water capacity indicators were derived using the van Genuchten model. The SWRCs showed that EFP-treated soils enhanced water retention capacity compared to the control. With increasing EFP concentrations, the infiltration rate consistently declined, from the highest in P1 to the lowest in P5. Moreover, EFP-treated soils exhibited lower hydraulic conductivity than the control. Soil aggregate stability significantly improved (p lessthan 0.05) with higher EFP concentrations, as the polymer promoted better soil aggregation. These results demonstrate that EFPs can improve water retention and availability for crops by enhancing soil hydrological properties, making them a promising solution for mitigating water scarcity as effective soil conditioners. Keywords: biodegradable, soil hydrological properties, super absorbent polymer, water retention, water scarcity
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Ma, Xing, Kan Liu, Junjiao Quan, Xiaoping Lu, and Bo Wang. "Effects of super absorbent polymer on low temperature stress of plant." In International Conference on Material and Environmental Engineering (ICMAEE 2014). Atlantis Press, 2014. http://dx.doi.org/10.2991/icmaee-14.2014.9.

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Akbari, Md Abidul, Abu Zakir Morshed, Md Saifur Rahman Ruman, Abhishek Sarkar, and Md Shamim Sharear. "Enhancing self-healing ability of cementitious materials through super absorbent polymer (SAP)." In 7TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING FOR SUSTAINABLE DEVELOPMENT: ICCESD24. AIP Publishing, 2025. https://doi.org/10.1063/5.0247081.

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Shan, Junhong, and Shaowu Guo. "Influence of Super Absorbent Polymer on the Mechanical Property of High Performance Concrete." In 2015 International Symposium on Material, Energy and Environment Engineering. Atlantis Press, 2015. http://dx.doi.org/10.2991/ism3e-15.2015.40.

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Liu, Xiaoli, Kai Li, and Kashif Nawaz. "Numerical Modeling of a Rotary Desiccant Wheel using Super Absorbent Polymer for Air Dehumidification." In 2023 ASHRAE Annual Conference. ASHRAE, 2024. http://dx.doi.org/10.63044/s23liu018.

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Sevugamoorthy, Dhanasekar, R. Ramasubramani, and P. T. Ravichandran. "Study on effect of super absorbent polymer & steel fiber in high performance concrete." In ADVANCEMENTS IN MATERIALS FOR CIVIL ENGINEERING APPLICATIONS. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0236794.

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Igarashi, Shin-ichi. "Experimental study on prevention of autogenous deformation by internal curing using super-absorbent polymer particles." In International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation. RILEM Publications, 2006. http://dx.doi.org/10.1617/2351580052.009.

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Zhang, H. M. "Effects of super absorbent polymer on nutrient retaining property in soils of Yimeng mountain area." In International Conference on Environmental Science and Biological Engineering. WIT Press, 2014. http://dx.doi.org/10.2495/esbe140361.

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Nailah, Fadlilatin, and Harmin Sulistiyaning Titah. "Study of water release that is absorbed by super absorbent polymer in disposable baby diapers." In THE 4TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND SCIENCE EDUCATION (ICoMSE) 2020: Innovative Research in Science and Mathematics Education in The Disruptive Era. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0043848.

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Reports on the topic "Super Absorbing Polymer"

1

Chung, T. C. Mike. Developing A New NG Super-Absorbent Polymer (NG-SAP) for a Practical NG Storage System with Low Pressure, Ambient Temperature, and High Energy Density. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/2320233.

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