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首页> 外文期刊>Journal of Applied Polymer Science >Immiscible Ethylene Vinyl Acetate and Nylon Blends Processed Below Nylon Melting Temperature
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Immiscible Ethylene Vinyl Acetate and Nylon Blends Processed Below Nylon Melting Temperature

机译：低于尼龙熔融温度的不混溶的乙烯醋酸乙烯酯和尼龙共混物

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This article focuses on unique compounding and processing conditions at a temperature slightly below the melting temperature of the dispersed phase and well above the melting peak temperature of the matrix. Compounding and processing were carried out at the same temperature. Fibrillar morphologies were obtained by blending ethylene vinyl acetate (EVA) copolymer with nylon 6 (N6) and compounding and processing them slightly below the N6 melting temperature. A hot, soft-solid particle drawing mechanism that operates in such processing conditions caused fibrillation of the N6 particles and formation of highly oriented fibril-filled composites throughout the entire volume. Morphological observations were made in the core region. Enhancement of some mechanical properties and interesting morphological structures were found in some of the blends. The melt elasticity; which was measured by the die swell of the filaments, was maximum at a temperature slightly below the N6 melting temperature, which supported the concept of fibrillation by processing it slightly below the melting temperature of the dispersed phase.
机译：本文着重于独特的混合和加工条件，其温度略低于分散相的熔融温度，且远高于基质的熔融峰值温度。混炼和加工在相同温度下进行。通过将乙烯乙酸乙烯酯（EVA）共聚物与尼龙6（N6）共混，然后在略低于N6熔融温度的条件下进行混合和加工，即可获得原纤维形态。在这种加工条件下运行的热的，软固体颗粒拉伸机制会导致N6颗粒发生原纤化，并在整个体积中形成高度取向的原纤维填充复合材料。在核心区域进行了形态学观察。在一些共混物中发现一些机械性能的增强和有趣的形态结构。熔体弹性;通过细丝的模头膨胀测量的温度在稍低于N6熔融温度的温度下最大，这通过在略低于分散相的熔融温度下进行处理来支持原纤化的概念。

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