(1) Lightweight

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

High strength, good 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 resilience, with strength comparable to涤纶 (nylon) and lycra, and a rebound rate that can match wool. Its rebound rate is significantly higher than that of涤纶 (polyester) and rayon. Polypropylene has poor dimensional stability, tends to ball and deform easily, is resistant to microorganisms, and is not susceptible to pests; its resistance to chemicals is superior to that of general fibers.

(3) Electrical insulation and thermal retention properties

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