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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 Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche is air resistance, moisture resistance and processing performance change with the change of ethylene content. When the ethylene content increases, the gas barrier ofBarrière haute barrière PP Rouleau de feuille de coextrusion multicouche decreases, the moisture resistance of Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche improves, and the resin of Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche is easier to process.When the ethylene content is greater than 50 percent, the air resistance of Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche will be seriously damaged, so the ethylene content in EVOH generally remains between 20 percent and 45 percent.In addition, the air resistance of Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche 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.
Barrière haute barrière PP Rouleau de feuille de coextrusion multicouche