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发明授权
CN103804774B 辐射预交联乙烯-醋酸乙烯酯树脂膜及其制备方法 有权 复审申请 无效申请 无效口审

辐射预交联乙烯-醋酸乙烯酯树脂膜及其制备方法
摘要：
本发明公开了一种辐射预交联乙烯‑醋酸乙烯酯树脂膜，包括以下重量份的组分：EVA树脂51～99.58份，有机过氧化物交联剂0.3～2份，助交联剂0.01～5份，抗氧剂0.1～2份，硅烷偶联剂0.01～2份，颜料0～40份，聚烯烃弹性体0～40份。本发明还公开了一种上述辐射预交联乙烯‑醋酸乙烯酯树脂膜的制备方法：将EVA树脂51～99.58份、有机过氧化物交联剂0.3～2份、助交联剂0.01～5份、抗氧剂0.1～2份、硅烷偶联剂0.01～2份、颜料0～40份、聚烯烃弹性体0～40份；充分混合后加入挤出机，通过T形平板模具挤出成膜，收卷，进行辐射后得到辐射预交联乙烯‑醋酸乙烯酯树脂膜。由于膜在使用前已经发生部分交联，大幅度提高了膜的尺寸稳定性和耐热性，适于大规模推广应用。
摘要（英）：

The invention discloses a radiation pre-crosslinked ethylene-vinyl acetate (EVA) resin film which comprises the following components in parts by weight: 51-99.58 parts of EVA resin, 0.3-2 parts of organic peroxide crosslinking agent, 0.01-5 parts of assistant crosslinking agent, 0.1-2 parts of antioxidant, 0.01-2 parts of silane coupling agent, 0-40 parts of pigment and 0-40 parts of polyolefin elastomer. The invention also discloses a preparation method of the radiation pre-crosslinked EVA resin film, which comprises the steps of sufficiently mixing 51-99.58 parts of EVA resin, 0.3-2 parts of organic peroxide crosslinking agent, 0.01-5 parts of assistant crosslinking agent, 0.1-2 parts of antioxidant, 0.01-2 parts of silane coupling agent, 0-40 parts of pigment and 0-40 parts of polyolefin elastomer, and adding into an extruder; extruding and forming a film through a T-shaped flat mould; rolling and radiating to obtain the radiation pre-crosslinked EVA resin film. Since the film is partially crosslinked before use, the dimensional stability and heat resistance of the film are remarkably improved, thus the film is suitable for large-scale popularization and application.

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