Earlier we introduced some basic features of high strength polypropylene yarn, and today we give a simple talk about the next small series of high-strength polypropylene fiber chemical properties:

Polypropylene require physical and chemical properties to achieve the following
1. Form polypropylene longitudinal straight and smooth surface, a circular section.
2. The biggest advantage is the density polypropylene light texture, its density is only 0.91g / cm3 is a common chemical fiber density lightest varieties, so the same weight polypropylene than other fibers, high coverage obtained.
3. High-intensity strength and elongation of polypropylene, large elongation, high initial modulus, good elasticity. So good wear resistance of polypropylene. In addition, polypropylene wet strength substantially equal to dry strength, so it is the production of fishing nets, an ideal material for the cable.
4. Moisture absorption and dyeability of polypropylene moisture absorption is very small, almost no moisture absorption, moisture regain under normal atmospheric conditions close to zero. But it has a wicking fabric by capillary transfer of water vapor, but itself has no absorption. Polypropylene dyeability poor chromatography was incomplete, but you can use liquid coloring method to make up for deficiencies.
5. Acid and alkali resistance Polypropylene has good chemical resistance, in addition to concentrated nitric acid, concentrated caustic soda, the polypropylene acid and alkali resistance performance is good, it is suitable for use as filter materials and packaging materials.
6. Polypropylene lightfastness is poor light resistance, thermal stability is poor, easy to aging, iron intolerance. But it can be added during spinning old age Chinese agent to improve its anti-aging properties.
High-strength polypropylene fiber where the good, the preferred Chemical Fiber Materials Co., Ltd. Changzhou Wan.