Uses of polypropylene staple fiber for engineering:

Used in anti-cracking putty powder, thermal insulation mortar, concrete, construction engineering layers, walls, floors, pools, basements, and access bridge projects.

What are the physical properties of polypropylene staple fiber?

1. The longitudinal surface of PP is straight and smooth, and the cross section is round.

2. The advantage of high-density PP fiber is its light texture. Its density is only 0.91g/cm3, which is a very light variety among ordinary chemical fibers, so PP fiber of the same weight can obtain a higher coverage area than other fibers.

3. Strong elongation polypropylene staple fiber has the characteristics of high strength, high elongation, high initial modulus, and good elasticity. Therefore, polypropylene is wear-resistant. In addition, the wet strength of polypropylene is basically equal to the dry strength, making it an ideal material for making fishing nets and cables.

4. Hygroscopic, dyeable, light weight, good thermal insulation; It is almost non-hygroscopic, but the core has strong moisture absorption capacity, and the moisture absorption and perspiration effect is obvious; Polypropylene has very little moisture absorption, almost no moisture absorption, and the moisture absorption rate under general atmospheric conditions is close to zero. But it has a core suction that can transport water vapor through the fabric, but it will not absorb any water vapor of its own. Pp dyes poorly and has incomplete chromatography, but the deficiency can be compensated by liquid coloring.

5. Acid and alkali resistant PP has good chemical corrosion resistance. Except for concentrated nitric acid and concentrated caustic soda, PP has good acid and alkali resistance, so it is suitable for use as filter material and packaging material.

6. Light resistance and other polypropylene staple fibers have poor light resistance, poor thermal stability, and are easy to age and iron. However, adding anti-aging agents during the spinning process can improve the anti-aging properties of the fiber. In addition, polypropylene has good electrical insulation, but static electricity is easily generated during processing. Because polypropylene has a small thermal conductivity, it has good thermal insulation.

7. The strength of high-strength polypropylene filament is second only to polyamide, but the price is only 1/3 of that of polyamide; the fabric made of it is dimensional stable, has good wear resistance and elasticity, and good chemical stability. However, it has poor thermal stability, is resistant to sunlight, and is prone to aging and brittle damage, so anti-aging agents are often added to polypropylene.

Hubei Botao Synthetic Fiber Co., Ltd. was established in November 2002. It is located in Jingmen High-tech Industrial Development Zone, covers an area of 300,000 square meters, and has 5 subsidiaries. Our company specializes in the production and sales of polypropylene, polyester, composite fiber, polyethylene fiber, polylactic acid staple fiber and various non-woven fabrics. The main products are widely used in automotive interiors, geotextiles, carpets, filtration, sanitation, spinning and other industries. As of 2024, the company's polypropylene staple fiber production capacity is more than 150,000 tons and the polyester staple fiber production capacity is 20,000 tons. After more than 20 years of unremitting efforts in the field of polypropylene fiber manufacturing, it has ranked among the top three in sales revenue and market share for five consecutive years. It is currently one of the top three suppliers of polypropylene staple fiber production capacity. On December 25, 2024, the company obtained the letter of consent for listing from the National Equities Exchange and Quotation Company.