impervious Geomembrane It is one of the series of geomembrane products, EVA I.e ethylene -Vinyl acetate copolymer has good flexibility, flexibility, elasticity, weather resistance, environmental stress cracking resistance and adhesive properties. All mechanical indexes are higher than ordinary polyethylene. Because it also has strong flexibility, it is very convenient in construction and has very good welding effect. EVA geomembrane waterproof material is made of multilayer co extruded membrane (anti-seepage membrane) This product has the characteristics of agricultural production system, such as high mechanical strength, aging resistance, strong puncture resistance, large friction coefficient, flexibility, corrosion resistance, and so on. At the same time, it also has the advantages of light weight, wide width, low temperature resistance, good water resistance, and good weldability.
Anti seepage geomembrane is widely used in highway, airport, * * *, tunnel, water conservancy, dam, power plant, building and other projects. It can play the role of reinforcement, isolation, reverse filtration, filtration, drainage, etc., and can also extend the project life and reduce the project maintenance cost. The product is convenient for construction and easy to ensure project quality. PE, EVA geomembrane is a new type of waterproof material, which is soft, flexible and low temperature resistant in polyolefin PVC Replacement of anti-seepage membrane. EVA geomembrane's outstanding low temperature flexibility is particularly suitable for construction in cold regions. The VA% content of EVA co extruded anti-seepage membrane is controlled at 5% - 8% (the higher the VA content, the greater the elasticity, and the lower the softening point) synthetic resin (HDPE, LDPE, EVA, ECB) as the base material, added with antioxidant, ultraviolet absorber, color masterbatch and other auxiliary materials to make waterproof and anti-seepage materials. HDPE geomembrane has good physical and mechanical properties, aging resistance, chemical corrosion resistance, environmental weathering resistance, puncture resistance and other comprehensive characteristics. LDPE and EVA have large elongation, good low-temperature performance, and are soft and easy to construct. ECB geomembrane is made of ethylene copolymer and petroleum resin, which belongs to a higher grade geomembrane.
Main use of anti-seepage membrane: HDPE is mainly used for garbage
Waterproof works such as burial plant and wastewater treatment plant. LDPE is mainly used for tunnel composite lining and is not suitable for exposed roof. EVA is mainly used in subway projects, tunnels, air raid shelters, water retaining dams, artificial lakes, industrial waterproofing and other projects. ECB is mainly used for waterproofing of subway, road, dam, tunnel and civil engineering. HDPE and LDPE are high-density, PE geomembrane, EVA geomembrane, reinforced geomembrane,
Features: 1. The width and thickness specifications are complete (thickness: 0.2-4mm; width: 2.5-8m). 2. High flexibility, strength and toughness. 3. High transparency. 4. Excellent resistance to environmental stress cracking. 5. Large temperature range. 6. Convenient laying construction. 7. It is applicable to complex terrain of subway, tunnel and other underground projects.
