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Journal articles on the topic 'Polypropylene fibrous'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Zhang, Hao Hua, Ji Ru Zhang, and Jie Xiong. "Research on the Stressed Performance of Polypropylene Fibrous Concrete Ditch." Advanced Materials Research 255-260 (May 2011): 3082–86. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3082.

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Polypropylene fibrous concrete is a new kind of composite material. Polypropylene fiber leads to an increase in the resisting strength, cracking resistance performance, resistance to impact performance and permeability reducing performance of the concrete, thus reduces the shrinking and deformation of the concrete. This paper uses the method of numerical analysis, assisted by the software of finite element analysis, makes both static and dynamic analysis on the polypropylene fibrous concrete ditch with different volume mixing. It results in the stress and strain table of the head and base plat

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2

Bordunov, Sergey, Olga Galtseva, and Inna Plotnikova. "Obtaining Biologically Active Polypropylene Fibrous Materials." Materials Science Forum 992 (May 2020): 764–69. http://dx.doi.org/10.4028/www.scientific.net/msf.992.764.

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The paper presents the results of the development of the technology of centrifugal-die forming of biologically active fibrous materials. The modification of biologically active polypropylene fibers was carried out directly at the process of their production in the field of centrifugal forces of rotating reactor during their molding from polypropylene melt. The properties of the obtained ion-exchange and biologically active polymer fibers are studied. It is shown that obtained and modified by the centrifugal-die method polypropylene fibers can be used as biologically active fibers.

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Wang, Ying Hao, and Xu Dong Liu. "Application and Analysis on Polypropylene Fibrous Concrete." Advanced Materials Research 250-253 (May 2011): 682–85. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.682.

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In fuel gas project, the foundation of carburetor is in circumstance which concrete occurred freeze-thaw circulation. To meet durability of structure, polypropylene fibrous concrete was used in design to solve concrete freeze-thaw. By means of a project, this paper talks about its crack control mechanism, impermeability, frost resistance and wear-resisting strength. Furthermore, some attention is listed to use polypropylene fibrous concrete successfully.

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Chang, Jing Cai, Ai Ping Tao, Ming Feng Gao, Chun Yan Xu, and Chun Yuan Ma. "Collection of Submicron Particles by Polyethylene Composite Materials Collector." Advanced Materials Research 919-921 (April 2014): 2030–36. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.2030.

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Wet electrostatic precipitators (wet ESPs) are good options for effective control of PM2.5 emission. However, the common problems of uniform water film formed on rigid collector limited the applicability of typical wet ESPs, thus could be tend to cause "spark-over" and "back-corona". This research was designed to test the performance of the polypropylene fibrous as collection electrodes for PM2.5 control in wet ESP. Meanwhile, drop spreading feature and volume resistivity measurements of polypropylene fibrous collector were investigated. The results show that drop spreading existed in imbibiti

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5

Xu, Jinhao, Binjie Xin, and Xuanxuan Du. "Controllable Wetting Modification of Polypropylene Fibrous Mats." AATCC Journal of Research 8, no. 2_suppl (2021): 19–22. http://dx.doi.org/10.14504/ajr.8.s2.4.

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In this study, polypropylene (PP) fibrous mats are modified by plasma treatment, following by chemical grafting. Initially, the as-prepared PP fibrous mats are treated by plasma at different oxygen (O2) and argon (Ar) ratios. Then, the PP fibrous mats are modified by grafting dopamine onto polar groups for in situ polymerizations, resulting in a polydopamine (PDA) coating on the substrate's surface. Time-sensitive wettability is thereby converted into permanent wettability in PP fibers. The morphology, chemical performance, and relative wettability of the modified PP fibers are then characteri

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6

Novoselova, L. Yu, and E. E. Sirotkina. "Fibrous Polypropylene–Polystyrene Materials Produced Using Ultrasound." International Polymer Science and Technology 34, no. 9 (2007): 33–39. http://dx.doi.org/10.1177/0307174x0703400905.

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7

Sharova, T. B., L. A. Obvintseva, N. V. Kozlova, et al. "Ozone Resistance of Nonwoven Polypropylene Fibrous Material." Fibre Chemistry 48, no. 5 (2017): 410–15. http://dx.doi.org/10.1007/s10692-017-9807-9.

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8

Shi, Zhen Wu, Shuang Liu, and Rui Rui Zhang. "Comparative Experiment on Frost Resistance of Different Kinds of Polymer Fibrous Concrete." Advanced Materials Research 250-253 (May 2011): 673–77. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.673.

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Based on the evaluation of fibrous concrete materials and the experiments of freezing-thawing resistance home and abroad, the present experiment takes relative dynamic modulus of elasticity and rate of mass reduction as an analytical index to conduct a comparative study on the effects of the mixing of four kinds of polypropylene fiber on the cement concrete freezing resistance. The results show that different kinds of polypropylene fiber have different influences on cement concrete freezing resistance. And some polypropylene can improve it while others may make it decreased.

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9

Yang, Ming Shan. "The Reinforcement of Acicular Wollastonite on Polypropylene." Advanced Materials Research 92 (January 2010): 283–88. http://dx.doi.org/10.4028/www.scientific.net/amr.92.283.

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The wollastonite/PP composites were manufactured by twin-screw extruder and the effects of compatabilizer, feeding method and screw configuration on the properties of wollastonite/PP composites were investigated in this paper. The dispersion of fibrous wollastonite in PP matrix was determined by scanning electron microscope (SEM). The results showed that the strength, toughness and flowability of the composite were simultaneously guaranteed by using three different types of PP resins, and the interfacial adhesion was improved greatly by adding the compatabilizer of PP-g-MAH, which increases th

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10

Abd Rahman, Norashidah, Siti Amirah Azra Khairuddin, Norwati Jamaluddin, and Zainorizuan Mohd Jaini. "Strength of Reinforced Fibrous Foamed Concrete-Filled Hollow Section." Materials Science Forum 936 (October 2018): 219–23. http://dx.doi.org/10.4028/www.scientific.net/msf.936.219.

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At present, research on concrete-filled sections extends to using lightweight concrete to reduce the total weight of such structures. However, research on concrete-filled hollow sections (CFHS) using foamed concrete remains ongoing. Therefore, this study was conducted to determine the strength of reinforced fibrous foamed CFHSs. Two types of fibre, namely, steel and polypropylene fibres, were used. A short-column specimen was prepared and tested under compression load. Result shows that adding steel fibre to foamed concrete indicates a higher strength than adding polypropylene fibre. The stren

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11

Prorokova, N. P., S. Yu Vavilova, V. M. Buznik, and A. E. Zavadskii. "Modification of polypropylene fibrous materials with ultradispersed polytetrafluoroethylene." Polymer Science Series A 55, no. 11 (2013): 643–51. http://dx.doi.org/10.1134/s0965545x13110047.

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12

Beardsley, Stephanie L., Daniel D. Smeak, and Steven E. Weisbrode. "Histologic evaluation of tissue reactivity and absorption in response to a new synthetic fluorescent pigmented polypropylene suture material in rats." American Journal of Veterinary Research 56, no. 9 (1995): 1248–52. http://dx.doi.org/10.2460/ajvr.1995.56.09.1248.

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SUMMARY The degree and type of tissue reactivity and the absorption of a new suture material was determined by implantation within rat gluteal muscles. Amount and type of tissue inflammatory reaction was compared among the new suture material, polypropylene, and coated polyamide. Histologic evaluation of the tissues in which sutures were implanted indicated that the new suture material, polypropylene, and coated polyamide had similar amounts and types of reaction at 30 days or less after implantation, but differed after 30 days. The new suture material and polypropylene had an inflammatory rea

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13

Lysak, Ilya A., Galina V. Lysak, and Tatyana D. Malinovskaya. "IR Spectroscopy of Polypropylene Fibrous Carrier before and after its Surface Modification with Metal Nanoparticles." Key Engineering Materials 683 (February 2016): 377–82. http://dx.doi.org/10.4028/www.scientific.net/kem.683.377.

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In this paper, we present an IR spectroscopy study of the molecular and supramolecular structure of the polypropylene fibre, used as a metal nanoparticle carrier, by the example of nanoparticles of tin dioxide. The aim of this work is to investigate the changes in the chemical structure of the polypropylene melt-blown web when modified with the tin dioxide nanoparticles. The paper shows that the metal-oxygen valence vibration bands appear in the IR spectra of modified polypropylene fibrous carriers. At the same time, the carrier material remains stereoregular and possess a helical structure.

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14

Ruhov, Anatoly S., Tatyana D. Malinovskaya, Victor Sachkov, and Maxim A. Mishchenko. "Photoinduced Bactericidal Activity of Titanium Dioxide Nanoparticles Attached to the Surface of Polypropylene Fibers." Advanced Materials Research 880 (January 2014): 229–32. http://dx.doi.org/10.4028/www.scientific.net/amr.880.229.

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In work bactericidal properties of system "TiO2 nanoparticles - the polypropylene fibrous carrier" are defined at impact of ultra-violet radiation concerning gram-positive and gram-negative bacteria and conditions under which this property is realized are defined.

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15

Suji, D., S. C. Natesan, and R. Murugesan. "Experimental study on behaviors of polypropylene fibrous concrete beams." Journal of Zhejiang University-SCIENCE A 8, no. 7 (2007): 1101–9. http://dx.doi.org/10.1631/jzus.2007.a1101.

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16

Kucher, N. K., M. P. Zemtsov, and E. L. Danil’chuk. "Short-term creep and strength of fibrous polypropylene structures." Strength of Materials 39, no. 6 (2007): 620–29. http://dx.doi.org/10.1007/s11223-007-0070-9.

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17

Belov, S. A., and A. A. Grigoryuk. "Use of polypropylene mesh in superior posterior thoracoplasty." Grekov's Bulletin of Surgery 178, no. 1 (2019): 45–48. http://dx.doi.org/10.24884/0042-4625-2019-178-1-45-48.

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Theobjectivewas to evaluate the possibilities of using the polypropylene mesh “Surgipro” to increase the compression and reduce the operational injury in extrapleural superior posterior thoracoplasty.Material and methods.64 cases of surgical treatment of fibrous-cavernous tuberculosis were studied. The volume of compression of the lung tissue and the effectiveness of the intervention were compared.Results.Clinical and radiologic examination of patients in three weeks after the operation indicates that occurrence of exacerbation, preservation of bacterial excretion and lack of compression are m

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18

Karthik, Sundaravadivelu, Kaliyaperumal Saravana Raja Mohan, and Gunasekaran Murali. "Investigations on the Response of Novel Layered Geopolymer Fibrous Concrete to Drop Weight Impact." Buildings 12, no. 2 (2022): 100. http://dx.doi.org/10.3390/buildings12020100.

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In recent years, geopolymer concrete (GC) has become more popular in construction because of its multiple benefits, such as eco-friendliness, high temperature resistance and resistance to chemical attack in harsh environments. However, GC has limited deformation capability and tensile strength compared to ordinary concrete. Geopolymer fibrous concrete (GFC) exhibits high mechanical properties, such as compressive strength and impact strength. This study aimed to develop a novel composite comprising GFC at the tension zone and GC at the compression zone, and vice versa, are these composites wer

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19

Belov, S. A., and A. A. Grigoryuk. "The efficacy of different extrapleural fixations in upper-posterior thoracoplasty in fibrous cavernous pulmonary tuberculosis patients." Tuberculosis and Lung Diseases 98, no. 12 (2021): 42–46. http://dx.doi.org/10.21292/2075-1230-2020-98-12-42-46.

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The objective of the study: to compare the efficacy of different modifications of thoracoplasty in patients with apical fibrous cavernous pulmonary tuberculosis.Subjects and methods. The article describes the analysis of the results of thoracoplasty in 65 fibrous cavernous pulmonary tuberculosis patients performed from 2016 to 2019. Three types of thoracoplasty were used: thoracoplasty with polypropylene mesh, osteoplastic thoracoplasty, and traditional thoracoplasty. The results were assessed by the severity of intraoperative trauma, development of bronchopulmonary complications, lack of comp

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20

Goynes, W. R., A. J. Delucca, and J. P. Moreau. "Structural evaluation of biodegradability of nonwoven fabrics." Proceedings, annual meeting, Electron Microscopy Society of America 49 (August 1991): 326–27. http://dx.doi.org/10.1017/s0424820100085939.

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Disposability of nonconsumable products has become an increasing environmental concern. Convenience products are widely used in the United States, and fibrous disposables such as lightweight towels, diapers, medical supplies, and pads constitute a large share of these products. The fibrous disposables market is highly oriented to synthetic fibers, which are generally not biodegradable. In this study we evaluated differences in biodegradability of nonwoven fabrics containing cotton (C) and polypropylene (PP) fibers. It included 100% untreated cotton, blends of cotton with 20, 30, 50, and 75% po

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21

Nag?, Satoshi, and Yukio Mizutani. "Microporous polypropylene fibers containing poly(methylsilsesquioxane) fillers. Interrelation between filler particles and fibrous polypropylene texture." Journal of Applied Polymer Science 66, no. 5 (1997): 1003–5. http://dx.doi.org/10.1002/(sici)1097-4628(19971031)66:5<1003::aid-app20>3.0.co;2-9.

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22

Nakatani, Hisayuki, and Kensuke Miyazaki. "Modification of polypropylene and polypropylene/ fibrous cellulose composites by the addition of poly(ethylene oxide)." Journal of Applied Polymer Science 112, no. 6 (2009): 3362–70. http://dx.doi.org/10.1002/app.29623.

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23

Prorokova, N. P., S. Yu Vavilova, T. Yu Kumeeva, and V. M. Buznik. "Surface characteristics of polypropylene fibrous materials modified with ultradisperse polytetrafluoroethylene." Protection of Metals and Physical Chemistry of Surfaces 49, no. 1 (2013): 95–100. http://dx.doi.org/10.1134/s2070205113010085.

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24

Genis, A. V., V. V. Usov, A. A. Sindeev, and L. N. Andrianova. "Structure and Properties of Fibrous Polypropylene Protective and Filtering Materials." International Polymer Science and Technology 34, no. 2 (2007): 61–66. http://dx.doi.org/10.1177/0307174x0703400212.

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25

Grachek, V. I., A. A. Shunkevich, A. P. Polikarpov, and O. I. Isakovich. "Sorption properties of new fibrous chelate ion exchanger." Proceedings of the National Academy of Sciences of Belarus, Chemical Series 56, no. 2 (2020): 206–11. http://dx.doi.org/10.29235/1561-8331-2020-56-2-206-211.

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The sorption properties of new iminodiacetate fibrous cation exchanger FIBAN XC-1 synthesized on a chemically resistant matrix of polypropylene fiber with a grafted copolymer of styrene and divinylbenzene, which can withstand elevated temperatures and aggressive environments, were studied. It was shown that the fibrous chelate ion exchanger FIBAN XC-1 is an effective sorbent of heavy and non-ferrous metals from multi-ionic aqueous solutions under static and dynamic conditions. It was found that the cation exchanger operates at high speeds up to 20 column volumes / min in water purification fro

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26

Eshkobilov, Оlim, and Giyas Gulyamov. "Composite polypropylene polymer materials that work in contact with raw cotton." E3S Web of Conferences 264 (2021): 05055. http://dx.doi.org/10.1051/e3sconf/202126405055.

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Physicomechanical and tribotechnical properties of structural composite materials based on thermoplastic polymer and organomineral ingredients operating under friction and wear conditions during contact with pulp (raw cotton) have been investigated. The regularities of changes in the physical, mechanical and tribotechnical properties of structural composite materials during contact interaction with raw cotton were determined, the dependence of their properties on the type and content of graphite, mineral and fibrous fillers in structural composite materials was studied. It has been established

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27

Gonzalez, Rodrigo, and Bruce J. Ramshaw. "Comparison of Tissue Integration between Polyester and Polypropylene Prostheses in the Preperitoneal Space." American Surgeon 69, no. 6 (2003): 471–77. http://dx.doi.org/10.1177/000313480306900604.

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Tissue integration and implant characteristics of various biomaterials commonly used for inguinal hernia repair have not been studied extensively. The aim of this study is to compare behavior and tissue response between two new polyester prostheses and a commonly used polypropylene (PP) mesh. The polyester prostheses utilized were polyester flat (PF) and polyester soft three-dimensional (PS); the PP mesh utilized was Marlex®. Eight randomly assigned 4 x 4-cm2 pieces of two different meshes were fixed in the preperitoneal space with a centrally placed single suture. Gross evaluation included sh

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28

Timoshina, Yulia A., Emil F. Voznesensky, and Victor S. Zheltukhin. "MATHEMATICAL MODEL OF THE INTERACTION OF LOW-ENERGY INERT GAS IONS WITH POLYPROPYLENE IN RADIO-FREQUENCY PLASMA OF LOW PRESSURE." Technologies & Quality 53, no. 3 (2021): 18–23. http://dx.doi.org/10.34216/2587-6147-2021-3-53-18-23.

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Results of the molecular dynamic simulation of the interaction of low-energy ions (from 10 to 100 eV) with the surface of polypropylene fibrous materials in low pressure radio-frequency (RF) argon plasma is presented. A full-atomic model using the LAMMPS classical molecular dynamics code was made. As a result of numerical calculations, it was found that argon ion bombardment initiates the breaking both of an intermolecular and intramolecular bond of polypropylene with sputtered particles being the hydrocarbon radicals and single atoms. The depth of implantation of the ion is determined, the ch

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29

López, Joan P., José A. Méndez, Francesc X. Espinach, Fernando Julián, Pere Mutjé, and Fabiola Vilaseca. "Tensile strength characteristics of polypropylene composites reinforced with stone groundwood fibers from softwood." BioResources 7, no. 3 (2012): 3188–200. http://dx.doi.org/10.15376/biores.7.3.3188-3200.

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The behavior of stone groundwood / polypropylene injection-molded composites was evaluated with and without coupling agent. Stone groundwood (SGW) is a fibrous material commonly prepared in a high yield process and mainly used for papermaking applications. In this work, the use of SGW fibers was explored as a reinforcing element of polypropylene (PP) composites. The surface charge density of the composite components was evaluated, as well as the fiber’s length and diameter inside the composite material. Two mixing extrusion processes were evaluated, and the use of a kinetic mixer, instead of a

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30

Trufakina, Lyudmila, Elena Berezina, and Alexandra Kuchevskaya. "Influence of Fibrous and Solid Fillers on the Rheological and the Surface Properties of Polymer Composition." Key Engineering Materials 670 (October 2015): 21–26. http://dx.doi.org/10.4028/www.scientific.net/kem.670.21.

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The influence of fibrous and solid granulated fillers on the rheological and surface properties of the polymer compositions on the basis of polyvinyl alcohol and Na-carboxymethyl cellulose is demonstrated. The polymer complexes with Na-carboxymethyl cellulose and sodium tetraborate additions and the compositions filled with polypropylene, polyethylene terephthalate and quartz sand are obtained and comparative assessment of the properties of studied polymer composites have been made. Polymer compositions with quartz sand, synthetic and plant fibrous fillers increase the effective viscosity, ela

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31

Kakhramanov, Najaf T., Gunay H. Nuraliyeva, Yunis N. Gahramanly, and Galina S. Martynova. "Thermal deformation characteristics of composites based on fibrous basalt and polypropylene." Processes of Petrochemistry and Oil Refining, no. 03 (2024): 721. http://dx.doi.org/10.62972/1726-4685.2024.3.721.

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32

Singh, Surinder Pal. "Fatigue Strength of Hybrid Steel-Polypropylene Fibrous Concrete Beams in Flexure." Procedia Engineering 14 (2011): 2446–52. http://dx.doi.org/10.1016/j.proeng.2011.07.307.

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33

Khunanya Janchai, Takahiro Inoue, Shohei Iwasaki, Takumitsu Kida, and Masayuki Yamaguchi. "Effect of Fibrous Nucleating Agent on Shear-induced Crystallization for Polypropylene." Seikei-Kakou 35, no. 9 (2023): 318–23. http://dx.doi.org/10.4325/seikeikakou.35.318.

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34

Chomicz-Kowalska, Anna, and Krzysztof Maciejewski. "Performance of Fly-Ash- and Cement-Bound Granular Mixtures with Dispersed Fiber Reinforcement—A Case Study." Applied Sciences 14, no. 6 (2024): 2618. http://dx.doi.org/10.3390/app14062618.

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This paper investigates the effects of incorporating dispersed fibrous reinforcement in hydraulically bound granular 0/16-mm mixtures. The evaluated fibrous reinforcement comprised a mixture of polypropylene and alkali-resistant glass fibers in a 1:2 weight ratio. The fibrous reinforcement was added to the mixtures in amounts of 0.05% and 0.10% by weight. The prepared mixtures utilized 1% of CEM II/B-V 32.5 R Portland cement together with 3.5%, 7%, and 14% of fly ash, characterized by a high content of reactive calcium oxide. It was found that the fibrous additives had only a small effect on t

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35

D. Salman, Wissam, and Saif M. Salman. "Fibrous Geopolymer Adhesive Jackets for Confining of Reinforced Concrete Columns." Diyala Journal of Engineering Sciences 14, no. 3 (2021): 119–30. http://dx.doi.org/10.24237/djes.2021.14310.

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The strengthening and rehabilitation of reinforced concrete structures is an important issue all over the world. Fiber-reinforced composites (FRC) are mainly used for the strength and rehabilitation of concrete members. However, its use is limited due to its high price and environmental effects and its adoption of epoxy as an adhesive, where epoxy is considered inefficient at high temperatures and loses most of its properties. The solution to this problem leads to the use of low-cost locally available geopolymer adhesive paste, with the possibility of adding fibers to improve the mechanical pr

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36

Kakhramanov, Najaf T., Gunay H. Nuraliyeva, Galina S. Martynova, Yunis N. Kakhramanly, and Reyhan Sh Gadzhieva. "INFLUENCE OF FIBROUS FILLER ON THE MECHANISM AND KINETIC REGULARITIES OF CRYSTALLIZATION OF BASALT CONTAINING PLASTICS BASED ON POLYPROPYLENE RANDOM COPOLYMER." ChemChemTech 68, no. 1 (2024): 85–92. https://doi.org/10.6060/ivkkt.20256801.7102.

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The paper presents the results of a study of the influence of fibrous basalt content on the regularity of composites crystallization based on polypropylene random copolymer. The studies were carried out using the method of stepwise dilatometry in the temperature range 20 – 210 °C. The dependence of the specific volume on temperature and filler content was studied, as a result of which the values of the temperature of the first-order phase transition, the glass transition temperature and the occupied specific volume were determined. An approximate estimate of the glass transition temperature of

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37

Matsouka, Dimitroula, Savvas Vassiliadis, Derman Vatansever Bayramol, Navneet Soin, and Elias Siores. "Investigation of the durability and stability of piezoelectric textile fibres." Journal of Intelligent Material Systems and Structures 28, no. 5 (2016): 663–70. http://dx.doi.org/10.1177/1045389x16657202.

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Polymers such as polyvinylidene difluoride, polypropylene and polyamide-11 show great promise for providing light-weight, flexible and fibrous piezoelectric materials that can be integrated into technical textile fabric structures for energy harvesting applications. Durability is an important parameter for the textiles and especially for functional and smart materials. This research work provides an insight on the piezoelectric behaviour of polypropylene, polyamide-11 and polyvinylidene difluoride in terms of peak-to-peak voltage generation capabilities after washing at 40°C with the addition

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38

Arslani, Nuhi. "Histological advantages of two-component fibrin mesh (TachoSil) compared with polypropylene mesh after placementin the inguinal region in laboratory rats." Acta Medico-Biotechnica 18, no. 1 (2025): 33–38. https://doi.org/10.18690/actabiomed.276.

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Hernia repair surgeries are among the most common procedures in both veterinary and human medi-cine, with various mesh options available for surgeons repairing the transversalis fascia. This study compared a variant of two-component fibrin mesh (TachoSil) and polypropylene mesh in reconstruct-ing the transversalis fascia by placing them in the inguinal region in Fischer laboratory rats. Specifically, the TachoSil or fibrin mesh was implanted into the groin region of Fischer rats, and after 30 days of mesh placement, the rats were sacrificed, the fibrous plate with either inserted mesh removed,

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39

Gravit, Marina, and Elena Golub. "Increase of fire resistance of reinforced concrete structures with polypropylene microfiber." MATEC Web of Conferences 245 (2018): 03005. http://dx.doi.org/10.1051/matecconf/201824503005.

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The increase in the construction of high-rise, technically complex buildings and structures is a prerequisite for the widespread use of structures of heavy concrete. In this work, a special type of destruction of this type of concrete is considered in the fire action explosive spalling. One method of protection is polypropylene microfiber, the objective of which is to increase the fire resistance of concrete and reinforced concrete structures. The fire resistance tests of the reinforced concrete structure with the use of microfiber and without it have been carried out. It is shown that polypro

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40

Baranova, A. A. "CELLULAR AND FINE-GRAINED CONCRETE BASED ON SILICA WITH DISPERSED REINFORCEMENT." Mechanics and Technologies, no. 4 (December 30, 2023): 83–91. http://dx.doi.org/10.55956/qmmz3329.

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The results of studies of the physical and mechanical properties of heat-efficient foam concrete, as well as fine-grained concrete, are summarized. The materials are made on the basis of silica microfibre. The percentage of fibers varies within the prescribed limits, and they must be prepared from different materials. The determination of physical and mechanical properties corresponds to GOST 180-2012. Thus, it was found that the optimal content of basalt and steel fiber fibers in foam concrete samples is about – 2%, polypropylene – 3%. The compressive strength of foam concrete samples increas

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41

Novoselova, L. Yu, and V. V. Bordunov. "The Possibility of Chemical Modification of Fibrous Materials from Waste Polypropylene Products." International Polymer Science and Technology 30, no. 4 (2003): 52–55. http://dx.doi.org/10.1177/0307174x0303000413.

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42

Cao, Li, Dunfan Su, Zhiqiang Su, and Xiaonong Chen. "Fabrication of Multiwalled Carbon Nanotube/Polypropylene Conductive Fibrous Membranes by Melt Electrospinning." Industrial & Engineering Chemistry Research 53, no. 6 (2014): 2308–17. http://dx.doi.org/10.1021/ie403746p.

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43

Petrova, E. V., T. I. Izaak, D. A. Filonenko, A. P. Astashkina, V. I. Otmakhov, and G. G. Volokitin. "Possible mechanism of metal ion extraction from aqueous solutions by fibrous polypropylene." Colloid Journal 69, no. 6 (2007): 777–81. http://dx.doi.org/10.1134/s1061933x07060142.

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Venault, Antoine, Chih-Chen Ye, Yi-Cun Lin, et al. "Zwitterionic fibrous polypropylene assembled with amphiphatic carboxybetaine copolymers for hemocompatible blood filtration." Acta Biomaterialia 40 (August 2016): 130–41. http://dx.doi.org/10.1016/j.actbio.2016.01.031.

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Jin, Ming, Yanyun Liu, Yulin Li, et al. "Preparation of the flexible polypyrrole/polypropylene composite fibrous film for electrochemical capacitor." Journal of Applied Polymer Science 122, no. 5 (2011): 3415–22. http://dx.doi.org/10.1002/app.34438.

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Abd Rahman, Norashidah, Siti Amirah Azra Khairuddin, Mohd Faris Faudzi, Mohd Harith Imran Mohd Asri, Norwati Jamaluddin, and Zainorizuan Mohd Jaini. "Axial strength of modified fibrous foamed concrete-filled hollow section." World Journal of Engineering 17, no. 2 (2019): 175–81. http://dx.doi.org/10.1108/wje-08-2019-0237.

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Purpose Concrete-filled hollow section (CFHS) is widely used in steel construction. The combination of concrete and steel decreases buckling and deformation of steel. However, studies reveal that using normal concrete increases the dead weight of a structure. Therefore, a lightweight concrete, such as foamed concrete (FC), is proposed to reduce the weight of the structure. The purpose of this study is to determine the strength of modified fibrous foamed CFHS (FCFHS). Design/methodology/approach Steel and polypropylene fibres were used with rice husk ash, and short column fibrous FCFHSs were te

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Sabar, Zahraa A., and Abbas O. Dawood. "Flexural Investigation Of Fibrous Concrete Slabs Incorporating Pet Wastes As Sand Replacement." Civil and Environmental Engineering 20, no. 2 (2024): 1040–54. https://doi.org/10.2478/cee-2024-0075.

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Abstract In this paper, the effect of polyethylene terephthalate waste (PET) on the bending behavior of one-way reinforced fibrous concrete slabs was studied. seven different percentages of PET as sand replacement by weight were used: 0%, 5%, 10%, 15%, 20%, 30%, and 50% reinforced by ratio 1.5% of polypropylene fibers of the concrete mixture volume. Seven concrete slab specimens for each replacement ratio of PET with dimensions of 1500 × 500 × 80 mm were tested, in addition to reference slab. The specimens were tested using a four-point load setup, the measurements included failure load, maxim

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Alnaqbi, Mohamed A., Afra G. Al Blooshi, and Yaser E. Greish. "Polyethylene and Polyvinyl Chloride-Blended Polystyrene Nanofibrous Sorbents and Their Application in the Removal of Various Oil Spills." Advances in Polymer Technology 2020 (April 8, 2020): 1–12. http://dx.doi.org/10.1155/2020/4097520.

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Polymers provide a wide range of properties, and these properties can be greatly enhanced and modified through polymer blending. Polymer blending combines the properties and advantages of their original polymers. This paper showcases hydrophobic polymers prepared through polymer blending; these blends are characterized and evaluated for their efficiency in the removal of crude oil spills from aqueous media. The application of these blends holds a great deal of importance in preserving the environment and the recovery of lost oil in spills. The blends are produced using polystyrene (PS) as the

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Juhar, G., S. Saqan, and A. M. Zihlif. "The Plastic Deformation of Fibrous Polymers via Weibull Model." Polymers and Polymer Composites 9, no. 7 (2001): 473–82. http://dx.doi.org/10.1177/096739110100900705.

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This work deals with the plastic deformation of polypropylene, PAN-based carbon and Kevlar fibres at different gauge lengths and uses the Weibull model. A statistical analysis for the fibre strength and breaking strain is presented to test the experimental data relating to the fibre deformation. The mechanical parameters such as fibre strength, breaking strain and Young's modulus have been studied as a function of gauge length. It was found that both strength and breaking strain increase as fibre gauge length decreases, while the Young's modulus increases with increasing gauge length and depen

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Chekmareva, I. A., B. Sh Gogiya, O. V. Paklina, and R. R. Alyautdinov. "Structural and functional tissue response to implants in patients with recurrent abdominal wall hernias in long-term period." Pirogov Russian Journal of Surgery, no. 4 (April 9, 2025): 39. https://doi.org/10.17116/hirurgia202504139.

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Objective. To analyze long-term structural and functional changes of connective tissue in patients with recurrent hernias after repair with implants. Material and methods. Excisional biopsies from the hernia recurrence sites were performed in 60 patients who had previously undergone hernia repair with implants. In 37 (62%) patients, polypropylene mesh of the unidentified manufacturer was previously implanted. Eight (13%) patients underwent PROLENE polypropylene mesh implantation, 4 (5%) patients — Ultrapro partially absorbable lightweight mesh composed of approximately equal parts of non-absor

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