Definition and manufacturing process of polyester filament geotextiles
Polyester filament geotextile is made directly by spinning needle punching and consolidation by polyester method, and the product specification can be arbitrarily selected from 100-800g m2. It is a geosynthetic, mainly used in geotechnical and civil engineering. Polyester filament geotextiles are made by the method of webting and consolidating polyester filaments, and their fibers are arranged into a three-dimensional structure. In addition to good mechanical properties, it also has good longitudinal and transverse drainage properties and good elongation properties, as well as high chemical stability properties such as biological resistance, acid and alkali resistance, and aging resistance. At the same time, it also has a wide pore size range, zigzag pore distribution, excellent permeability and filtration performance.
Engineering applications of polyester filament geotextiles
Polyester filament geotextile has a wide range of applications in the filtration of water conservancy dams and slope protection, channel isolation, seepage prevention, etc. It is also used in the foundation isolation, filtration, drainage, soil slope, retaining wall and pavement reinforcement and drainage of highways, railways and airport runways. It is also used in the soft foundation treatment of port engineering.
Features of polyester filament geotextiles
Polyester filament geotextiles have good mechanical properties, including tensile strength and deformation resistance. It also has good drainage properties, which can form a drainage structure in the soil structure and remove excess liquids and gases from the soil structure. At the same time, it also has good corrosion resistance, with long-term corrosion resistance to various natural soils, moisture and microorganisms. In addition, polyester filament geotextiles also have good heat and light resistance, and their properties have hardly changed even after short-term exposure in an environment of nearly 20 years.