1, The density of polypropylene is only 0.91g/cm3 (that of polyester is 1.38g/cm3) Therefore, compared with polyester geotextile, polypropylene geotextile has a larger coverage area under the same strength.
2, The special structure of polypropylene makes it have excellent acid and alkali resistance, especially since the alkali resistance is better than that of polyester. When it is used in underground protection, reinforcement, waterproofing and seepage prevention projects with strong soil acidity and alkalinity, its effect is better than that of polyester.
3, The surface friction coefficient of polypropylene fiber is small, the friction between fibers is small, and the wear resistance is good. The anti-vibration friction performance is much better than that of polyester.
4, Polypropylene has good hydrophobicity and no water absorption. Its application in water supply and drainage engineering is better than that of polyester.
5, The strength of polypropylene anti-sticking needle-punched geotextile is higher than that of polyester needle-punched geotextile with the same gram weight, and the longitudinal and transverse strength is equal.