Polypropylene fibers are synthetic fibers spun from isotactic polypropylene obtained by polymerizing propylene, known as "polypropylene" in China. They offer high strength, good toughness, excellent chemical resistance, microbial resistance, and low cost, making them widely used in industries such as ropes, fishing nets, safety belts, bag straps, safety nets, sewing threads, cable sheaths, geotextiles, filter fabrics, paper felts, and reinforcing materials for paper.

Polypropylene woven geotextiles, manufactured utilizing the superior properties of high strength, acid and alkali resistance, antimicrobial properties, and equal strength in wet and dry conditions, can reinforce civil engineering projects built on soft soil foundations (such as dams, reservoirs, highways, railways, etc.), evenly distributing load-bearing stress across the geotextile. This ensures uniform settlement of the subgrade and reduces ground cracking. When constructing slopes, woven polypropylene geotextiles can stabilize the slope, minimize collapses, shorten construction timelines, and extend the slope's lifespan. For heavy load-bearing applications, composite geotextiles with woven and nonwoven bases can be used. Polypropylene fibers can serve as filling material for concrete and plaster, enhancing the impact resistance and waterproof thermal insulation properties of the concrete.