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首页> 外文期刊>Polymer Composites >Toughening of bamboo fibers/unsaturated polyester composites with 2-acetoacetoxyethyl methacrylate
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Toughening of bamboo fibers/unsaturated polyester composites with 2-acetoacetoxyethyl methacrylate

机译：竹纤维/不饱和聚酯复合材料加固甲基丙烯酸甲酯2-乙酰乙酰氧基乙基

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摘要

Bamboo fibers (BFs)-reinforced unsaturated polyester (UPE) composites were prepared by hand lay-up compression molding. The UPE resins were modified with 2-acetoacetoxyethyl methacrylate (AAEM) and designed to improve the flexibility and toughness of the BFs-UPE composites. The results indicated that the toughness of the composites significantly increased as the AAEM usage increased. When compared with the untreated UPE composites, the composites obtained from AAEM modified UPE resins (with a 20:80 weight ratio of AAEM to UPE) had 21.7% higher impact strength. Dynamic mechanical analysis showed that incorporation of AAEM significantly increased the damping parameter and decreased glass transition temperature of the composites due to the introduction of flexible segments of AAEM into the UPE resins. Scanning electron microscopy images of the impact-fractured surfaces of the composites revealed that AAEM modification improved the interfacial adhesion between BFs and UPE matrices. The main mechanism for the increase in the toughness of the composites could be due to the increased ductility of the matrices. POLYM. COMPOS., 40:1595-1601, 2019. (c) 2018 Society of Plastics Engineers
机译：通过手动叠层压缩成型制备竹纤维（BFS） - 粘性不饱和聚酯（UPE）复合材料。用2-乙酰乙酰氧基乙基甲基丙烯酸甲酯（AAEM）改性UPE树脂，并设计用于改善BFS-UPE复合材料的柔韧性和韧性。结果表明，随着AAEM的使用增加，复合材料的韧性显着增加。与未处理的UPE复合材料相比，从AAEM改性UPE树脂获得的复合材料（AAEM到UPE的20:80重量）具有21.7％的冲击强度。动态力学分析表明，由于将AAEM柔性区段引入UPE树脂，掺入AAEM的掺入显着提高了复合材料的阻尼参数和降低的玻璃化转变温度。复合材料的冲击破裂表面的扫描电子显微镜图像显示，AAEM改性改善了BFS和UPE矩阵之间的界面粘附。复合材料韧性增加的主要机理可能是由于矩阵的延展性增加。聚合物。 Compos。，40：1595-1601,2019。（c）2018年塑料工程师协会

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  • 来源
    《Polymer Composites》 |2019年第4期|共7页
  • 作者

    Fei Ming-En; Xie Tianshun; Liu Wendi; Qiu Renhui;

  • 作者单位

    Fujian Agr &

    Forestry Univ Coll Transportat &

    Civil Engn Fuzhou 350108 Fujian Peoples R China;

    Fujian Agr &

    Forestry Univ Coll Mat Engn Fuzhou 350108 Fujian Peoples R China;

    Fujian Agr &

    Forestry Univ Coll Transportat &

    Civil Engn Fuzhou 350108 Fujian Peoples R China;

    Fujian Agr &

    Forestry Univ Coll Transportat &

    Civil Engn Fuzhou 350108 Fujian Peoples R China;

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  • 正文语种 eng
  • 中图分类 增强塑料、填充塑料;
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