Polypropylene staple fiber is light in weight. Its density is 0.9～0.92 g/cm3. It is the lightest among all synthetic fibers. It is 20% lighter than polyamide fiber, 30% lighter than polyester fiber, and 40% lighter than viscose fiber. %; High strength (the same in dry state and wet state), good abrasion resistance and resilience; anti-microbial, no mildew and no moth; chemical resistance is also better than general synthetic fibers.

Polypropylene staple fiber has many excellent properties, which are mainly reflected in the following four aspects:

First, it has excellent moisture conductivity, flexibility, netting and combability, and excellent thermal adhesion.

The second light weight, its density is 0.9～0.92 g/cm3, which is the lightest among all synthetic fibers. It is 20% lighter than polyamide fiber, 30% lighter than polyester fiber, and 40% lighter than viscose fiber. ; High strength (the same in dry state and wet state), good abrasion resistance and resilience; anti-microbial, no mildew and no moth; chemical resistance is also better than general synthetic fibers.

Third, compared with other synthetic fibers, polypropylene fiber has the best electrical insulation and warmth retention. It has a high electrical resistivity (7×1019 ohm·cm) and a small thermal conductivity.

Fourth, high strength, strong curling elasticity, light weight, low melting point, good surface permeability, acid and alkali resistance and abrasion resistance are better than other fibers.

The above four points are some of the properties of polypropylene staple fiber.

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