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The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.

PP Non Woven Needle-Punched Sludge Filter is your good choice.Needle-punched non-woven fabrics are a kind of non-woven fabrics, which are made of polyester, polyester, and polypropylene raw materials, and are processed through multiple needle punching and proper hot pressing.

Film welding method 1. The welding temperature, speed and pressure are determined after experiments and inspections. 2. The welding should be stopped when the ambient temperature is too high or too low. 3. The welding rod is the same as the membrane material. 4. Every piece of oilfield impermeable membrane is welded on the day of laying. 5. The edge of the upper impermeable membrane at the weld should be polished to an inclination angle of 45° to improve the welding quality of the weld.

Waterproof geotextile manufacturer-Yangzhou Bojun Environmental Protection Engineering Co., Ltd., to answer you under what circumstances to use waterproof geotextile:

When composite geomembrane is applied to hydraulic structures, durability is the most worrying issue in engineering circles, and it is also a very important issue.