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Journal articles on the topic 'Non-wetting additives'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Afshar, Saied, and Claude Allaire. "Furnaces: Improving low cement castables by non-wetting additives." JOM 53, no. 8 (2001): 24–27. http://dx.doi.org/10.1007/s11837-001-0130-8.

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2

Barandehfard, Faranak, James Aluha, AliReza Hekmat-Ardakan, and François Gitzhofer. "Improving Corrosion Resistance of Aluminosilicate Refractories towards Molten Al-Mg Alloy Using Non-Wetting Additives: A Short Review." Materials 13, no. 18 (2020): 4078. http://dx.doi.org/10.3390/ma13184078.

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The corrosion of refractories in contact with high temperature aluminum-magnesium alloys leads to contamination of the Al-Mg alloy products by solid impurities from degraded refractories. Where both the spinel and corundum phases form in the refractories, cracks are generated and propagated by diffusion of molten Al-Mg, resulting in severe corrosion. In this review paper, the corrosion phenomenon is discussed, and published work is summarized, supplemented by our recent experimental results. Using the Alcan immersion test, materials based on white-fused mullite (WFM) were evaluated for their c

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3

Naderi, Golsa, Hamid Reza Rezaie, Ali Shokuhfar, and Rahim Naghizadeh. "Effect of Colloidal Silica and Nano Boehmite Mixture on Reaction Sintering, Microstructure and Physical Properties of Tialite." Defect and Diffusion Forum 273-276 (February 2008): 554–59. http://dx.doi.org/10.4028/www.scientific.net/ddf.273-276.554.

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Aluminum titanate (Al2TiO5) is an engineering ceramic with low thermal expansion coefficient, excellent thermal shock resistance, good refractoriness and non-wetting with most metals. In this work the use of colloidal silica and nano boehmite mixture in proper stoichiometry of mullite in aluminum-titanate (tialite) has been studied. Analytical structural evaluations including XRD, TEM and SEM have been used to characterize the influence of these additives on phase transformation, sintering process and microstructure. The results show that the presence of nano size silica and boehmite enhanced

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4

Smith-Fiola, Deborah C., and Anne B. Gould. "EFFECTS OF A HYDROGEL, WETTING AGENT, AND METALAXYL ON PHYTOPHTHORA WILT IN CONTAINER-GROWN RHODODENDRON." HortScience 27, no. 6 (1992): 631a—631. http://dx.doi.org/10.21273/hortsci.27.6.631a.

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Phytophthora wilt, caused by the root-infecting fungus Phytophthora cinnamomi, is a serious disease of rhododendron. The symptoms of this disease include wilt, dieback, and death of nursery cuttings as well as large plants. The effects of two soil additives, Supersorb (a hygrogel) and Aquagro (a wetting agent), with and without Metalaxyl (Subdue 2E), were assessed on decreasing the incidence of Phytophthora wilt in container grown `Nova Zembla' rhododendron. Rooted cuttings grown in amended or non-amended mix were inoculated with P. cinnamomi. Metalaxyl treatments were applied once at the full

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5

Scott, KJ, J. O'Loughlin, B. England, and EA Roberts. "Effects of water rinses after calcium chloride dips, with and without additives, on the control of bitter pit of apples." Australian Journal of Agricultural Research 36, no. 2 (1985): 305. http://dx.doi.org/10.1071/ar9850305.

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Studies on the control of bitter pit in apples after harvest were conducted during two seasons in Tasmania and New Zealand. The cultivars, Cox's Orange Pippin, Sturmer Pippin, Golden Delicious, Delicious and Cleopatra, which are susceptible to bitter pit on overseas markets, were examined. Bitter pit was reduced and calcium content of the fruit increased, by dipping the fruit in calcium chloride solutions (1-3% w/v). The addition of diphenylamine or the non-ionic wetting agent, Agral 60 (ICI Australia), had little effect on the control of bitter pit or on the calcium content of the treated fru

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6

Squillace, Ophélie, Rebecca Fong, Oliver Shepherd, et al. "Influence of PVAc/PVA Hydrolysis on Additive Surface Activity." Polymers 12, no. 1 (2020): 205. http://dx.doi.org/10.3390/polym12010205.

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This aims to establish design rules for the influence of complex polymer matrices on the surface properties of small molecules. Here, we consider the dependence of the surface behaviour of some model additives on polymer matrix hydrophobicity. With stoichiometric control over hydrolysis, we generate systematic changes in matrix chemistry from non-polar, hydrophobic PVAc to its hydrolysed and hydrophilic analogue, PVA. With the changing degree of hydrolysis (DH), the behaviour of additives can be switched in terms of compatibility and surface activity. Sorbitol, a polar sugar-alcohol of inheren

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7

Przybyszewski, Bartlomiej, Anna Boczkowska, Rafal Kozera, et al. "Hydrophobic and Icephobic Behaviour of Polyurethane-Based Nanocomposite Coatings." Coatings 9, no. 12 (2019): 811. http://dx.doi.org/10.3390/coatings9120811.

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In this paper, hydrophobic nanocomposite coatings based on polyurethane (PUR) modified by nano-silica and silane-based compounds were manufactured by spraying. The main challenge was to assess and improve the hydrophobic as well as anti-icing properties of initially hydrophilic polymer coatings. The prepared nanocomposite coatings were characterized by means of scanning electron microscopy (SEM), optical profilometry and X-ray photoelectron spectroscopy (XPS). The results obtained showed that in order to achieve hydrophobicity, appropriate amounts of nano-silica must be incorporated in the coa

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8

Patrykiejew, A. "Highly non-additive symmetric mixtures at a wall." Physical Chemistry Chemical Physics 20, no. 14 (2018): 9228–40. http://dx.doi.org/10.1039/c7cp07942g.

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9

Guzii, Sergii, Ihar Bazhelka, and Vasyl Lashchivskyi. "STUDY OF THE INFLUENCE OF COMPOUNDS OF THE ANO3 and ANO3 nH2O TYPES ON RHEOKINETIC AND COLLOID-CHEMICAL PROPERTIES OF ALUMINOSILICATE ADHESIVES FOR WOOD." ScienceRise, no. 5 (November 11, 2020): 14–23. http://dx.doi.org/10.21303/2313-8416.2020.001493.

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In the technology of gluing solid wood, various adhesives are used, which, in addition to ensuring the strength of the gluing, must also be characterized by a number of rheological and colloidal-chemical properties, namely: have acceptable viscosity, low contact angles, have good spreading and enveloping ability, penetrate deep into the wood , providing reliable cohesive-adhesive contact and much more. Today, adhesives based on PVA dispersions and urea formaldehydes are used, the properties of which have been sufficiently studied and tested in practice. An alternative to organic-based adhesive

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10

Kovalchuk, Nina M., Jacques Dunn, Jack Davies, and Mark J. H. Simmons. "Superspreading on Hydrophobic Substrates: Effect of Glycerol Additive." Colloids and Interfaces 3, no. 2 (2019): 51. http://dx.doi.org/10.3390/colloids3020051.

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The spreading of solutions of three trisiloxane surfactants on two hydrophobic substrates, polyethylene and polyvinylidenefluoride, was studied with the addition of 0–40 mass % of glycerol. It was found that all the surfactant solutions spread faster than silicone oil of the same viscosity, confirming the existence of a mechanism which accelerates the spreading of the surfactant solutions. For the non-superspreading surfactant, BT-233, addition of glycerol improved the spreading performance on polyvinylidenefluoride and resulted in a transition from partial to complete wetting on polyethylene.

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11

Gur’ev, Vladimir, Vadim Nikitin, and Valeriy Kofanov. "INVESTIGATION OF HEAT-HUMIDITY TRANSFER IN HIGH-POROUS GAS-FILLED POLYMERS TO CALCULATE ITS HEAT CONDUCTIVITY." International Journal for Computational Civil and Structural Engineering 15, no. 1 (2019): 67–77. http://dx.doi.org/10.22337/2587-9618-2019-15-1-67-77.

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A method for calculating the effective thermal conductivity of moisture-containing highly porous foamed polymers is proposed. In this method a non-additive scheme for taking into account the effect of steam diffusion on heat transfer is used. The sequential binary systems (interstitial substance from a liquid and a vapor- gas mixture, as well as a polymer skeleton and an intra-porous substance) are described by models of structures with interpenetrating components and isolated inclusions. The conditions for the transition from one model of structure to another are defined and there is not nece

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12

Osburg, Andrea, Alexander Gypser, and Martin Ulrich. "Development of Polymer Concrete with Non-Standardised Fillers for Innovative Building Materials." Advanced Materials Research 1129 (November 2015): 484–91. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.484.

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The use of polymer concrete in building construction is a relatively new application. A building block system (Modular Assembly System: MAS-System) and the mobile fabrication technology for the reversible construction of buildings with regionally available aggregates, were developed in a project of applied research. The aspects of the successful material development are described, especially with regard to the characterisation of both the binders and the polymer concretes, considering strength and durability. The polymer concrete consists approximately of 90 % fillers, 10 % polymer binder and

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13

Tarapanov, Alexander S., Larisa Y. Frolenkova, and Tatyana N. Shablinskaia. "The Roughness of the Contact Surfaces of Plastic Cylindrical Gears with a Circular Tooth during Additive Shaping." Materials Science Forum 989 (May 2020): 833–38. http://dx.doi.org/10.4028/www.scientific.net/msf.989.833.

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The article discusses the problems of using FDM technologies in the formation of plastic gears with circular teeth. It is shown that additive technologies are becoming increasingly important in the manufacture of non-standard parts. The role of such an important parameter as the roughness of the side surface of the teeth, which has a significant impact on the durability of gearing, is emphasized. The method for calculating the configuration of liquefied material layer on a solid flat surface is proposed. This method is based on a model of the interaction of the internal three-dimensional state

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14

Wemmer, Judith, Loredana Malafronte, Socrates Foschini, et al. "Fabrication of a Novel Protein Sponge with Dual-Scale Porosity and Mixed Wettability Using a Clean and Versatile Microwave-Based Process." Materials 14, no. 9 (2021): 2298. http://dx.doi.org/10.3390/ma14092298.

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An open-porous protein sponge with mixed wettability is presented made entirely from whey proteins and with promising applications in biomedicine, pharmaceutical, and food industry. The fabrication relies on an additive-free, clean and scalable process consisting of foaming followed by controlled microwave-convection drying. Volumetric heating throughout the matrix induced by microwaves causes fast expansion and elongation of the foam bubbles, retards crust formation and promotes early protein denaturation. These effects counteract collapse and shrinkage typically encountered in convection dry

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15

Doerffel, Christoph, Raik Schmidt, Mirko Spieler, et al. "Generating Permanent and Temporary Material Compounds in FLM Processes." Key Engineering Materials 809 (June 2019): 353–59. http://dx.doi.org/10.4028/www.scientific.net/kem.809.353.

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Like all additive manufactured parts, FLM (fused-layer-modeling) components are characterized by a large number of joints between the similar and different materials. These joints can be divided into five categories:- Permanent cohesive bonds between single layers of the same thermoplastic material,- Permanent adhesive bonds between single layers of different thermoplastic materials- Temporary adhesive bonds between single layers of different thermoplastic materials,- Permanent adhesive bonds between a single layer of thermoplastic material and a non-thermoplastic base material,- Temporary adh

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16

Nelson, P. N., J. A. Baldock, and J. M. Oades. "Changes in dispersible clay content, organic carbon content, and electrolyte composition following incubation of sodic soil." Soil Research 36, no. 6 (1998): 883. http://dx.doi.org/10.1071/s98024.

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Measurement of dispersible clay is important for the diagnosis of structural stability problems in soil. However, clay dispersibility is known to change with water content and time. The purpose of the present study was to determine how incubation of sodic soil under different water content regimes influences clay dispersibility. Two topsoils (depth 0-0·1 m), one sodic [exchangeable sodium percentage (ESP) 9 · 7] and the other non-sodic (ESP 3·8), were collected from an experimental pasture at Kyabram, Victoria, and 2 soils, a sodic topsoil (depth 0-0·1 m, ESP 6·9) and the corresponding subsoil

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17

Kowalenko, C. G., and S. Yu. "Solution, exchangeable and clay-fixed ammonium in south coast British Columbia soils." Canadian Journal of Soil Science 76, no. 4 (1996): 473–83. http://dx.doi.org/10.4141/cjss96-059.

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Solution, exchangeable and clay-fixed ammonium were measured in a variety of south coast British Columbia soils in the laboratory using extraction, equilibration and leaching procedures, and with and without ammonium amendments in order to evaluate the relative significance of adsorption and fixation processes on nitrogen behavior. Non-amended soils contained from 59 to 224 g N g−1 of fixed ammonium and these amounts were correlated with clay (positive) and sand (negative) contents. The amount of native fixed ammonium in the soils was influenced by management history. Recovery of ammonium adde

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18

"Evaluation of Noble Environmentally Friendly and High Efficient Fire-Extinguishing Means." Journal of Chemistry: Education Research and Practice 4, no. 2 (2020). http://dx.doi.org/10.33140/jcerp.04.02.02.

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Reviewing the history of the development of preventing measures, to ensure suppression of fire clearly reveals, that the most urgent of these measures is the use of environmentally friendly, highly efficiency fire extinguishing means. The best fire-extinguishing means are fire-extinguishing powders, which are characterized by high effectiveness and universality. Fire- extinguishing powders of serial production represents the fine dispersed mineral salts with different additives, which decrease tendency of consolidation and caking of powder. In serial production powders halogen containing, orga

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19

Economikos, Laertis, Xing Zhang, Haigou Hwang, et al. "Al CMP for Low Resistance Gate Fill for 20nm and Beyond Replacement Metal Gate." MRS Proceedings 1560 (2013). http://dx.doi.org/10.1557/opl.2013.873.

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ABSTRACTAluminum (Al) gate fill has been implemented in Replacement Metal Gate (RMG) due to its low resistivity. Titanium (Ti) has been widely used as wetting layer for Al to fill the gates. For low resistance gate fill in structures with small feature size and high aspect ratio, Ti-Al metal fill becomes increasingly more challenging as we move from 20nm into 14nm FinFET and 3D type structures.Cobalt (Co) is a good wetting film for Al with better fill performance and lower resistance than Ti-Al based process. However, due to the difference in corrosion potential between Al and Co, Chemical Mec

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20

Patrykiejew, Andrzej. "The interplay between wetting and demixing in non-additive symmetric mixtures at selective walls." European Physical Journal B 91, no. 10 (2018). http://dx.doi.org/10.1140/epjb/e2018-90304-5.

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21

V., Merlin, Kritsalis P., Coudurier L., and Eustathopoulos N. "Thermodynamic Factors Governing Interfacial Chemistry And Wetting In Binary Alloy-Refractory Oxide Systems." MRS Proceedings 238 (1991). http://dx.doi.org/10.1557/proc-238-511.

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ABSTRACTFor a given non-reactive metal M- refractory oxide system, the influence of a metallic solute A on interfacial chemistry and wetting depends mainly on the value of εO−A the Wagner interaction parameter which quantifies the solute A-solute oxygen interactions in the liquid matrix M.For εO−A < 0 (moderate attraction between solutes A and O) additions of A in M enhance dissolution of oxide in the liquid alloy, thereby increasing the dissolved oxygen content. The O-A clusters formed are adsorbed at the metal-oxide interface leading to an increase in both wettability and adhesion energy.

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22

Ehsan Kianfar. "An Experimental Study PVDF and PSF Hollow Fiber Membranes for Chemical Absorption Carbon Dioxide." Fine Chemical Engineering, September 8, 2020, 91–102. http://dx.doi.org/10.37256/fce.122020552.

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Poly (vinylidene fluoride) (PVDF) and poly-sulfone (PSF) polymer solutions were made at a concentration of 18% by weight of the polymer as a non-soluble additive of polymer solution in 1-methyl-2-pyrrolidone (NMP) solvent. PVDF and PSF hollow fiber membranes were fabricated via the wet phase-inversion process. Fabricated membranes were characterized in terms of gas permeability, wetting resistance, water contact angle and overall porosity. In order to study the structure of the membranes made, the scanning electron microscopy images of the model (TM3000, HITACHI, Japan) were used. The morpholo

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23

Fizer, O. I., I. A. Kryvoviaz, M. M. Fizer, and M. V. Slivka. "CALCULATION OF HYDROPHILIC-LIPOPHILIC BALANCE FOR THE SYSTEM OF 2,3-SUBSTITUTED-5,6-DIHYDRO-3H-[1,3]THIAZOLO[3,2-b][1,2,4]TRIAZOL-7-IUM." Scientific Bulletin of the Uzhhorod University. Series «Chemistry» 45, no. 1 (2021). http://dx.doi.org/10.24144/2414-0260.2021.1.77-82.

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Cationic surfactants are widely used in industry, medicine, and in studies of a number of physicochemical processes. Analysis of the literature data indicates the high biological activity of cationic surfactants, particularly antimicrobial, antifungal, and in general biocidal. Currently, QSPR methods are increasingly used; they allow the prediction of properties based on the compound's molecular structure. One of the important parameters of cationic surfactants is the ratio of polar (positively charged "head") and non-polar (long hydrocarbon "tail") parts of their molecules. This ratio is call

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