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Thermal Bonding of Polypropylene Fibers
Textile Research Journal, 1989The thermomechanical processes that occur during thermal bonding of isotactic polypropylene are discussed. Each process is described and the magnitude of each effect estimated. The results suggest that flow is important to the formation of a good bond. Flow is facilitated by line pressure and is an important means of heat transfer to the center of the
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Textile polypropylene fibers: fundamentals
1999Polypropylene (PP) fibers contain, according to ISO 2076, minimally an 85% portion of macromolecular polypropylene chains and maximally 15% of another fiber-forming polymer, the content of nonfiber-forming substance being unlimited. Of the stereoregular isomers, only isotactic PP is used for fiber preparation.
Anton Marcinčin, Martin Jambrich
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Microporous polypropylene films and fibers
1999Recently, microporous polypropylene (PP) materials (sheets, films and hollow fibers) have gained acceptance in various fields of separation technology. Usually, these microporous materials are prepared by using uniaxial or biaxial stretching of adequate ‘preforms’. Some examples of processing routes are: 1.
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Natural fiber/polypropylene composites
1999There are ecological and economical reasons in favor of the use of natural fibers as reinforcing fibers for plastics. A lower price, better recyclability, hygienic harmlessness and a carbon dioxide neutral combustion are the advantages of natural fibers compared to glass fibers (GF).
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