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EVOH is highly crystalline, and its properties mainly depend on the mole fraction of two kinds of comonomers.
The EVOH of High Barrier PP Multi-layer Co-extrusion Sheet Roll is air resistance, moisture resistance and processing performance change with the change of ethylene content. When the ethylene content increases, the gas barrier of High Barrier PP Multi-layer Co-extrusion Sheet Roll decreases, the moisture resistance of High Barrier PP Multi-layer Co-extrusion Sheet Roll improves, and the resin of High Barrier PP Multi-layer Co-extrusion Sheet Roll is easier to process.When the ethylene content is greater than 50 percent, the air resistance of High Barrier PP Multi-layer Co-extrusion Sheet Roll will be seriously damaged, so the ethylene content in EVOH generally remains between 20 percent and 45 percent.In addition, the air resistance of High Barrier PP Multi-layer Co-extrusion Sheet Roll decreases with increasing temperature, such as from 20℃.At 35℃, the oxygen transmittance increases more than three times.In addition, EVOH also has high strength, elasticity, surface hardness and wear resistance.
High Barrier PP Multi-layer Co-extrusion Sheet Roll