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A novel strategy for the extraction and preparation of bamboo fiber-reinforced polypropylene composites

机译：竹纤维增强聚丙烯复合材料萃取和制备的新策略

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摘要

A new type of flexible bamboo fiber (BF) was extracted by using an environmentally friendly solvent-extraction technique. A series of mats with different mass ratios of BFs and polypropylene (PP) fibers was prepared by nonwoven air paving to improve the distribution of BFs in the PP. PP composites that contain varied BF contents were prepared by hot pressing the mats. The effect of BF loading on the mechanical, thermal, morphological and physical properties of the bamboo-reinforced modified PP composites was studied. The flexural strength of the composites increases initially, then decreases gradually, and the composite that contained 20% BFs exhibited the highest flexural strength. The impact strength exhibited the opposite trend. Scanning electron microscopy studies of the inner structures of the composites showed that many fibers were removed from the matrix. Thermogravimetric and differential scanning calorimeter analysis indicated that the thermal stability and melting point of the composites decreased with an increase in BF content. The water absorption and thickness swelling of the composites increased with an increase in BF content because of the hydrophilic hydroxyl groups on the BF surfaces. At last, the mats are molded into two kinds of interiors of cars, indicating that the mats exhibit good molding properties. POLYM. COMPOS., 40:2178-2186, 2019. (c) 2018 Society of Plastics Engineers
机译：通过使用环保型溶剂 - 提取技术提取一种新型柔性竹纤维（BF）。通过非织造空气铺设制备具有不同质量大量（PP）纤维的一系列具有不同质量比（PP）纤维的垫，以改善PP中BFS的分布。通过热压垫制备含有变化的BF内容物的PP复合材料。研究了BF负载对竹增强改性PP复合材料的机械，热，形态学和物理性质的影响。复合材料的弯曲强度最初增加，然后逐渐降低，含有20％BFS的复合材料表现出最高的弯曲强度。冲击力表现出相反的趋势。扫描电子显微镜研究复合材料的内部结构显示，从基质中除去许多纤维。热重分析和差示扫描量热计分析表明复合材料的热稳定性和熔点随着BF含量的增加而降低。由于BF表面上的亲水性羟基，复合材料的吸水和厚度膨胀随着BF含量的增加而增加。最后，将垫子成型为汽车的两种内部，表明垫片表现出良好的成型性能。聚合物。 Compos。，40：2178-2186,2019。（c）2018塑料工程师协会

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  • 来源
    《Polymer Composites》 |2019年第6期|共9页
  • 作者

    Tang Qiheng; Wang Yunfei; Ren Yiping; Zhang Wei; Guo Wenjing;

  • 作者单位

    Chinese Acad Forestry Res Inst Wood Ind Beijing 100091 Peoples R China;

    Chinese Acad Forestry Res Inst Wood Ind Beijing 100091 Peoples R China;

    Chinese Acad Forestry Res Inst Wood Ind Beijing 100091 Peoples R China;

    Fujian Haibosi Chem Technol Co Ltd Luxia Ind Pk Nanping Fujian Peoples R China;

    Chinese Acad Forestry Res Inst Wood Ind Beijing 100091 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 增强塑料、填充塑料;
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