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Grafting of polypropylene fibers. II. Electrokinetic properties of grafted polypropylene fibers
Journal of Applied Polymer Science, 1987Electrokinetic properties of methacrylic acid- and acrylonitrile-grafted polypropylene fibers measured in the presence of cationic dyes are reported. The zeta potential of polypropylene fibers decreases, and the surface charge density along with surface conductivity increases as the concentration of the dyes in the streaming solution increases.
H. T. Lokhande +4 more
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Fractographic characterization of isotactic polypropylene fibers
Microscopy Research and Technique, 2020AbstractIn this article we present an opto‐thermo‐mechanical characterization of isotactic polypropylene monofilament during failure by fracture. The digital photoelasticity, the two‐beam Pluta polarising interference microscope and the computed tomography are used to provide quantitative data and visual models of the fracture regions of isotactic ...
Taha Z. N. Sokkar +3 more
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1999
Special types of polypropylene (PP) fibers were developed in order to widen their application. The special fibers may be ranged into the following main groups: • multicomponent fibers containing at least two different polymers; • fibers with changing cross-section geometry (profiled and partly filled); • bioactive fibers.
Martin Jambrich, Anton Marcinčin
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Special types of polypropylene (PP) fibers were developed in order to widen their application. The special fibers may be ranged into the following main groups: • multicomponent fibers containing at least two different polymers; • fibers with changing cross-section geometry (profiled and partly filled); • bioactive fibers.
Martin Jambrich, Anton Marcinčin
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Failure of polypropylene fibers
Fibre Chemistry, 1984A quantitative definition of the highly elastic deformation built up in extension of polypropylene fiber has been proposed.
V. D. Fikhman +2 more
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Polypropylene + boehmite nanocomposite fibers
Journal of Polymer Engineering, 2012Abstract The influence of nanosized filler particles on mechanical properties of composite fibers has some specific features related to the fiber matrix, its preparation and the filler content, as well as the orientation of the fibers at their drawing.
Lubica Škovranová +7 more
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Pectin Coated Hollow Fiber Polypropylene Membranes
The International Journal of Artificial Organs, 1997The aim of this study was to prepare a composite membrane for the selective, extracorporeal removal of human LDL-cholesterol. Pectin coated on a porous polypropylene membrane (PP) was used as an active LDL adsorber. Three types of membrane preparations were performed: coating of native PP, coating after chemical etching and γ-irradiated coated PP ...
D, Lewińska +2 more
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Polymorphism in polypropylene fibers
Journal of Applied Polymer Science, 2003AbstractThe structure of polypropylene fibers formed by different spinning conditions was studied. The investigations were carried out using wide‐angle X‐ray scattering (WAXS) and small‐angle X‐ray scattering (SAXS) methods. It was stated that in noncolored fibers the mesophase and the monoclinic α forms were formed.
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Fibers from polypropylene/nano carbon fiber composites
Polymer, 2002Fibers from polypropylene and polypropylene/vapor grown nano carbon fiber composite have been spun using conventional melt spinning equipment. At 5 wt% nano carbon fiber loading, modulus and compressive strength of polypropylene increased by 50 and 100%, respectively, and the nano carbon fibers exhibited good dispersion in the polypropylene matrix as ...
Satish Kumar +4 more
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Structural Concrete, 2020
The tensile and compressive properties of hybrid basalt‐polypropylene fiber‐reinforced concrete (HBPFRC) under uniaxial load were investigated in this study.
Z. Deng +7 more
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The tensile and compressive properties of hybrid basalt‐polypropylene fiber‐reinforced concrete (HBPFRC) under uniaxial load were investigated in this study.
Z. Deng +7 more
semanticscholar +1 more source