Polyester Fiber, Polypropylene Fiber

Product Description

Polypropylene fibers can be divided into long fibers, short fibers, spunbonded nonwovens, meltblown nonwovens, and more.

Product Performance

(1) Lightweight

Polypropylene fibers have a density of 0.90-0.92 g/cm3, making them one of the lightest among all chemical fibers. They are 20% lighter than nylon, 30% lighter than polyester, and 40% lighter than rayon fibers, thus they are highly suitable for filling materials in winter clothing or fabrics for ski and mountaineering gear.

(2) High strength, excellent elasticity, wear-resistant, corrosion-resistant

High in strength (both in dry and wet conditions), polypropylene is an ideal material for making fishing nets and ropes; it boasts good wear resistance and elasticity, with strength comparable to polyester and nylon, and elasticity that can match nylon and wool, far exceeding polyester and粘胶纤维. Polypropylene has poor size stability, is prone to pilling and deformation, is resistant to microorganisms, and is not prone to moth damage; its resistance to chemicals is superior to that of most fibers.

(3) Electrically insulated and thermal retaining

Polypropylene fibers have a high resistivity (7×10^19 Ω.cm), a low thermal conductivity, and better electrical insulation and thermal retention properties compared to other chemical fibers. However, they are prone to static electricity during processing.

(4) Poor heat and aging resistance

Polypropylene fibers have a low melting point (165~173℃) and poor stability to light and heat, thus, they have poor heat resistance and aging resistance and are not heat-resistant. However, their anti-aging performance can be improved by adding anti-aging agents during spinning.