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Failure analysis of rubber toughened epoxy resin

机译:橡胶增韧环氧树脂的失效分析

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Failure of the blends of epoxy cresol novolac resin (ECN) with varied proportions of carboxy terminated polybutadiene (CTPB) liquid functional rubber was studied. Addition of CTPB improves toughness as reflected in the improvement of tensile, flexural, and impact properties. However, 10 wt % of CTPB was the optimum concentration beyond which a rapid fall of properties, in all cases, was observed. Surface topography of the fractured surfaces, studied by scanning electron microscopy and atomic force microscopy, revealed marked changes in the phase morphology due to addition of rubber and also accounted for the variation of the strength properties. (C) 2002 Wiley Periodicals, Inc. [References: 31]
机译:研究了环氧甲酚线型酚醛清漆树脂(ECN)与不同比例的羧基封端的聚丁二烯(CTPB)液体功能橡胶的共混物的失效。 CTPB的添加改善了韧性,这体现在拉伸,挠曲和冲击性能的改善中。但是,CTPB的10重量%是最佳浓度,超过该浓度,在所有情况下都观察到性能迅速下降。通过扫描电子显微镜和原子力显微镜研究的断裂表面的表面形貌表明,由于添加了橡胶,相态发生了显着变化,并且也说明了强度特性的变化。 (C)2002 Wiley Periodicals,Inc. [参考:31]

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