The high-strength polypropylene fiber has high strength, large elongation, high initial modulus and excellent elasticity. Therefore, polypropylene has good wear resistance. In addition, the wet strength of high-strength polypropylene yarn is basically equal to dry strength, so it is an ideal material for making fishing nets and cables.
Polypropylene high-strength silk light warm and good; almost no moisture absorption, but strong wicking ability, obvious moisture absorption and perspiration; good chemical resistance, in addition to concentrated nitric acid, concentrated caustic soda, polypropylene to acid and alkali Good resistance, so it is suitable for use as filter materials and packaging materials; poor light resistance, poor thermal stability, easy aging, and not resistant to ironing. However, it is possible to improve the anti-aging property by adding an anti-aging agent at the time of spinning. In addition, polypropylene has good electrical insulation, but it is easy to generate static electricity during processing. Because of the small thermal conductivity, the warmth is good.
The strength of polypropylene high-strength yarn is second only to nylon, but the price is only 1/3 of nylon; the fabric is stable in size, wear-resistant and elastic, and chemically stable. However, it has poor thermal stability, is not resistant to the sun, and is prone to aging and brittleness. For this reason, an anti-aging agent is often added to the polypropylene.
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