EVA material is actually an ethylene-vinyl acetate copolymer material, which is a new type of environmentally friendly foam material. Products made of EVA materials are generally beautifully made and have good cushioning, shock resistance, heat insulation, moisture resistance, chemical resistance and other properties. , non-toxic, non-absorbent, soft. The tensile toughness of EVA material is stronger than that of LDPE, but there is no glue on the surface. The white is clear and transparent, and it feels like a PVC film. EVA material has good economic benefits, especially the injection cross-linking foam molding and in-mold foam molding technology has the advantages of industrial continuity, short production cycle and saving raw materials.

EVA Material Leads:

Do you know why EVA materials are more and more widely used? That's because EVA material has a small hot melt cavity in the packaging industry, no water, no solvent. It is solid at room temperature, and becomes liquid with good fluidity at high temperature, which is non-flammable. Moreover, the EVA material is harmless to the human body and has a fast curing speed. It is cured within 7~30 seconds after leaving the glue pot, without drying or adding other curing agents, which fully meets the requirements of high-speed automation. Therefore, EVA material will inevitably become the best adhesive material for the linkage line of the flat-pack wireless glue factory. Hot melt adhesives can bond a variety of substances, especially porous homogeneous materials with stronger adhesion. The cured film has good flexibility, and the hot melt adhesive can be repeatedly heated and used, and has strong chemical resistance.

EVA products are widely used in antifreeze food bags, various stretch films, sandwich panels (extruded films), greenhouse films, various agricultural production films, high-strength anti-cracking bags, etc. If EVA product is used as agricultural film. Compared with PE film and PVC double barrier film, EVA products have better light transmittance, heat preservation, dripping water, aging resistance and weather resistance. EVA products have good thermal insulation and less heat dissipation at night. Especially suitable for cold regions. If EVA products are used as shed film, the crop yield is higher than other agricultural films, and it is not easy to age. It can be used continuously for three years, and will not deform after aging, which is convenient for recycling and greatly reduces farmland pollution. EVA products are suitable for the production of cable insulation materials, because the copolymers of EVA products are easily cross-linked and can be filled with a large amount of fillers without brittle fracture and loss of comprehensive mechanical properties. The most typical application fields of EVA products are heat shrinkable insulators, semiconductor insulating materials, and flame retardant insulating materials. Because EVA products have good foaming performance (adding an appropriate amount of foaming agent), EVA products themselves have excellent resilience, aging resistance and crack resistance. At the same time, the cells of EVA products are small and uniform, so EVA products are widely used in foam sheets for insoles and other foams such as children's wheels, sound insulation boards, auto parts, slow pedals, gymnastics mats, yacht guards, etc. It can be made into EVA hot melt adhesive, which is widely used in wireless binding, packaging carton, carton sealing, label bonding, furniture corner bonding and assembly, and automotive product assembly in the printing industry. It can bond cellulose film, polyester film, polyvinyl chloride film etc. In addition, the adhesive has short curing time, high production efficiency, suitable for automated production lines, does not contain water and solvents, does not require drying, does not cause swelling and deformation of the adherend, has no solvent poisoning and fire problems, and is convenient for storage and transportation. EVA products are fully compatible with asphalt. After modification, the temperature sensitivity (low-temperature ciliary, high-temperature viscosity), stiffness and impact properties of the bitumen were improved. EVA products are widely used in civil engineering, roofing materials, paving materials and other fields.