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首页> 外文期刊>Applied Surface Science >The origin of the curing behavior, mechanical and thermal properties of surface functionalized attapulgite/bismaleimide/diallylbisphenol composites
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The origin of the curing behavior, mechanical and thermal properties of surface functionalized attapulgite/bismaleimide/diallylbisphenol composites

机译：表面功能化凹凸棒石/双马来酰亚胺/二烯丙基双酚复合材料的固化行为，机械和热性能的起源

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摘要

High curing temperature and big brittleness are two disadvantages of heat resistant thermosetting resins. To simultaneously resolve these problems, surface functionalized fibrous attapulgite (N-ATT) was used to modify 4,4'-bismaleimidodiphenylmethane (BDM)/2,2'-diallyl bisphenol A (DBA) resin, and then a new kind of high performance nanocomposites (BD/N-ATT) were developed. The structure and properties of BD/N-ATT nanocomposites with different loadings of N-ATT were intensively studied. Results prove that the surface functionalization of attapulgite endows N-ATT has multi-effects with BD resin, and thus change the chemical and aggregation state (including crosslinking density and free volume) structures of the crosslinked network, and consequently, the composites have obviously different properties from BD resin. For the composite with only 0.5 wt% N-ATT, its impact strength is about 1.6 times the value of BD resin, while the glass transition temperature and initial degradation temperature are about 25 and 20 ℃ higher than those of BD resin, respectively. The attractive properties of BD/N-ATT composites with a small loading of N-ATTs suggest that the composites have great potential in many cutting-edge fields; besides, interestingly, the method developed herein suggests a new way to develop high performance resins and related composites with simultaneously improved curing feature, toughness and thermal resistance.
机译：较高的固化温度和较大的脆性是耐热性热固性树脂的两个缺点。为了同时解决这些问题，使用表面功能化的凹凸棒石（N-ATT）改性了4,4'-双马来酰亚胺基二苯甲烷（BDM）/ 2,2'-二烯丙基双酚A（DBA）树脂，然后又得到了一种新型的高性能开发了纳米复合材料（BD / N-ATT）。深入研究了不同负载量的BD / N-ATT纳米复合材料的结构和性能。结果表明，凹凸棒石的表面功能化赋予了N-ATT与BD树脂多种作用，从而改变了交联网络的化学和聚集态（包括交联密度和自由体积）结构，因此，复合材料具有明显的差异。 BD树脂的性能。对于仅含有0.5 wt％N-ATT的复合材料，其冲击强度约为BD树脂的1.6倍，而玻璃化转变温度和初始降解温度分别比BD树脂高25℃和20℃。少量N-ATT的BD / N-ATT复合材料的诱人性能表明，该复合材料在许多前沿领域都具有巨大的潜力。此外，有趣的是，本文开发的方法提出了开发高性能树脂和相关复合材料的新方法，同时提高了固化性能，韧性和耐热性。

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  • 来源
    《Applied Surface Science》 |2014年第1期|435-443|共9页
  • 作者

    Lin Zhao; Ping Liu; Guozheng Liang; Aijuan Gu; Li Yuan; Qingbao Guan;

  • 作者单位

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

    Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science,Department of Materials Science and Engineering, Soochow University, Suzhou 215123, PR China;

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  • 关键词

    Attapulgite; Nanocomposites; Bismaleimide; Structure-property;

    机译：凹凸棒石;纳米复合材料;双马来酰亚胺;结构属性;

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