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1、 Under the same gram weight, the tensile strength of polypropylene filament geotextile is much higher than that of polyethylene filament geotextile.

2、 And the acid-base resistance is also better than polyethylene filament geotextile, and the performance is more stable.

3、 In terms of fiber thickness, polypropylene filament is 2-3 times as fine as polyethylene filament, forming a three-dimensional pore structure with higher temperature and better water permeability. It has stronger anti silting ability.

4、 Polypropylene material is very stable. It hardly reacts with other reagents except concentrated sulfuric acid and concentrated nitric acid. According to the practical test results, polypropylene geotextile can almost maintain 100% strength after soaking in 60 ℃ calcium hydroxide solution for three days, while the strength loss rate of polyethylene geotextile can reach 10-15%. If the soaking time is longer, the polyethylene material will continue to hydrolyze until it disappears.

Therefore, in many projects with high standard requirements, the performance of polypropylene geotextile can meet the standard. For example, the sliding layer of high-speed railway is easy to be corroded, so polypropylene geotextile can be used, which is more corrosion-resistant and has higher strength. There are also sports venues, dams, water conservancy construction, tunnels, coastal beaches, reclamation, environmental protection and other projects. Polypropylene geotextiles are often designed.