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Thin dense films from polymer blend of thermoplastic elastomer and polyolefin by uniaxial stretching

机译:由热塑性弹性体和聚烯烃的聚合物共混物通过单轴拉伸形成致密的薄膜

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摘要

Thin dense films composed of a thermoplastic elastomer [polystyrene-block- poly(ethylene butylene)-block-polystyrene triblock copolymer (SEBS)] and two polyolefins, poly(ethylene-co-ethylacrylate) and poly(ethylene-co-propylene), were obtained by blow molding, uniaxial hot stretching, and cooling to room temperature. In the resulting films, the dispersed polyolefin phase formed a 3D-network structure which constrained the elastic recovery of the SEBS matrix phase. The presence of this network structure was a key factor in forming the thin dense films.
机译:由热塑性弹性体[聚苯乙烯-嵌段-聚(乙烯-丁烯)-嵌段-聚苯乙烯三嵌段共聚物(SEBS)]和两种聚烯烃(聚-乙烯-丙烯酸乙酯和聚-乙烯-丙烯)组成的致密薄膜,通过吹塑,单轴热拉伸和冷却至室温获得C。在所得的膜中,分散的聚烯烃相形成3D网络结构,这限制了SEBS基体相的弹性回复。这种网络结构的存在是形成致密薄膜的关键因素。

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