Contact: Manager Zhang
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The company's products mainly include EVA Tunnel special composite waterproof board, polymer composite self-adhesive Waterproof roll 、 Geogrid , Acupuncture Geotextile , polyester filament geotextile, composite Geomembrane HDPE film, non-woven fabric, plastic blind ditch, flexible permeable pipe, drainage board, waterstop, waterstop and other geotechnical waterproof materials.
The production process of EVA waterproof board adopts the domestic advanced two-stage co extrusion single stack rod extrusion method. The raw resin EVA is added with reinforcing agent and antioxidant, and the plate formed after heating, melting, plasticizing, extrusion forming, and traction can also be integrated with the geotextile (signal layer) that has worn the sling to form a composite waterproof board by thermal synthesis. The extrusion calendering method can also be used, That is to say, the resin extruder is melted and plasticized, and the molten flake is extruded from the slit die of the machine head and combined with the sling, which is rolled and cooled into a glossy film, or combined with the geotextile with the sling, which is rolled and cooled into a composite waterproof sheet.
Polyvinyl chloride (PVC) waterproof sheet is a high-quality, high polymer waterproof sheet, which is produced by extrusion method by adding processing aids such as plasticizer, light ray prevention agent, aging relief agent and stabilizer into PVC resin.
Scope of application: new * * *, highway, municipal road, light rail transit construction (including bridge deck and tunnel), water conservancy construction, sewage treatment engineering, landfill engineering, etc
EVA plastic raw material is ethylene vinyl acetate copolymer
characteristic
Water resistance: closed cell structure, non absorbent, moisture-proof, good water resistance.
Corrosion resistance: resistant to seawater, grease, acid, alkali and other chemicals, balanced colony, harmless, tasteless and pure.
Processability: no joint, and easy for hot pressing, cutting, gluing, fitting and other processing.
Shock resistance: high resilience and tension resistance, high toughness, good shock resistance and cushioning performance.
Thermal insulation: good thermal insulation, cold insulation and low temperature performance, resistant to severe cold and exposure.
Sound insulation: closed bubble, good sound insulation effect
Main purpose
EVA resin is ethylene vinyl acetate copolymer. Generally, the content of vinyl acetate (VA) is 5%~40%. Compared with polyethylene, EVA has introduced vinyl acetate monomer into the molecular chain, which reduces the high crystallinity, improves flexibility, impact resistance, filler compatibility and heat sealing performance, and is widely used in the fields of foamed shoe materials, functional greenhouse films, packaging films, hot-melt adhesives, electric cables and toys. In general, the performance of EVA resin mainly depends on the content of vinyl acetate on the molecular chain. In 2001, the market consumption of EVA resin in China was about 290 kt. With the development of China's shoe industry and the increase in the amount of functional greenhouse film, the demand for EVA resin in China will increase year by year.
