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首页> 外文期刊>Journal of Applied Polymer Science >TOUGHENING OF NYLON 6 WITH GRAFTED RUBBER IMPACT MODIFIERS
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TOUGHENING OF NYLON 6 WITH GRAFTED RUBBER IMPACT MODIFIERS

机译：嫁接橡胶冲击改性剂对尼龙6的增韧

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摘要

Recent work has shown that nylon 6/acrylonitrile-butadiene-styrene (ABS) blends can be made tough by the addition of some polymer additives that are chemically reactive with nylon 6 and physically compatible with the styrene-acrylonitrile copolymer (SAN) phase of ABS. Imidized acrylic polymers (IA) represent a successful example of such additives that improve the dispersion of ABS in the nylon 6 matrix and render the blends tough. This article examines the possibility of toughening nylon 6 with ethylene/propylene/diene elastomer grafted with SAN copolymer (EPDM-g-SAN). This EPDM-g-SAN consists of 50% rubber and 50% SAN by weight. However, it was found that the same IA that works well to disperse ABS materials of similar rubber content is not as effective for EPDM-g-SAN, primarily because the EPDM forms the continuous phase, not SAN, and, thus, interfaces with nylon 6 during melt blending. Maleated elastomers like maleic anhydride grafted ethylene-propylene copolymer (EPR-g-MA) and styrene-(ethylene-co-butylene)styrene triblock copolymer (SEBS-g-MA) were more effective for dispersing EPDM-g-SAN in the nylon 6 matrix than IA. Various mechanisms that improve the dispersion are discussed. (C) 1995 John Wiley & Sons, Inc. [References: 32]
机译：最近的工作表明，尼龙6 /丙烯腈-丁二烯-苯乙烯（ABS）混合物可以通过加入一些与尼龙6具有化学反应性并与ABS的苯乙烯-丙烯腈共聚物（SAN）相物理相容的聚合物添加剂而变得坚韧。酰亚胺化的丙烯酸聚合物（IA）代表了这类添加剂的成功实例，这些添加剂可改善ABS在尼龙6基体中的分散性，并使共混物坚韧。本文研究了用接枝有SAN共聚物（EPDM-g-SAN）的乙烯/丙烯/二烯弹性体增韧尼龙6的可能性。该EPDM-g-SAN包含50％的橡胶和50％的SAN重量。但是，已经发现，对分散橡胶含量相似的ABS材料效果很好的相同IA对EPDM-g-SAN无效，主要是因为EPDM形成连续相而不是SAN，并因此与尼龙形成界面在熔融共混期间为6。顺丁烯二酸酐接枝的乙烯-丙烯共聚物（EPR-g-MA）和苯乙烯-（乙烯-丁烯）苯乙烯三嵌段共聚物（SEBS-g-MA）等马来酸化弹性体更有效地将EPDM-g-SAN分散在尼龙中比IA 6矩阵。讨论了改善分散的各种机制。 （C）1995 John Wiley＆Sons，Inc. [参考：32]

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