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          Characteristics and uses of EVA foamed cotton

          Popularity:2807Publication time:2019-3-23

          EVA is superior to PE in elasticity, flexibility, gloss and air permeability. The environmental stress cracking resistance of EVA was improved and the compatibility of filler was improved. Compared with polyethylene, the mechanical properties of EVA can be avoided or reduced by adding reinforcing fillers. You can also modify EVA to get new applications. Its modification can be considered from two aspects: one is to use EVA as the main grafting agent of other monomers; the other is to partially alcoholize EVA.

          EVA foamed cotton is a copolymer of ethylene and vinyl acetate. Vinyl acetate (VA) content is 5% - 40%. Compared with polyethylene, because of the introduction of vinyl acetate monomer in the molecular chain, EVA has been widely used in foamed shoes, functional greenhouse film, packaging film, hot melt adhesive, wire and cable, toys and other fields, which reduces the high crystallinity, improves flexibility, impact resistance and filler compatibility. Y and thermal sealing performance. Generally speaking, the properties of EVA resin mainly depend on the content of vinyl acetate in the molecular chain. In 2001, the consumption of EVA foamed cotton market in China was about 290 kt. With the development of shoemaking industry and the increasing consumption of functional membranes, the demand for EVA resin in China will increase year by year.

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