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Mechanical and biodegradation properties of bamboo fiber-reinforced starch/polypropylene biodegradable composites

机译:竹纤维增强淀粉/聚丙烯生物降解复合材料的机械和生物降解性能

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摘要

Bamboo fiber (BF)-reinforced starch/polypropylene (PP) composites were prepared by extrusion and injection molding methods. The mechanical and thermal properties and water absorption were evaluated by different methods. Moreover, composite samples were subjected to biodegradation through soil burial test and microbes medium degradation. Different stages of biodegradation were investigated by weight loss, attenuated total reflection Fourier transformed infrared spectroscopy, differential scanning calorimeter, and scanning electron microscope. It was found that contents of BF and starch resin had a significant influence on the properties of the composites. With more content of BF, the composite exhibited a better flexural property and biodegradation. A distinct decrease of weight loss and mechanical properties indicated the degradation caused by the microbes. After biodegradation, thermal stability of the composites decreased while the crystallinity of PP increased. The results prove that the composites more easily tend to be degraded and assimilated by microbes. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48694.
机译:通过挤出和注射成型方法制备竹纤维(BF) - 裂解淀粉/聚丙烯(PP)复合材料。通过不同的方法评价机械和热性能和吸水性。此外,通过土壤埋葬试验和微生物培养基降解进行复合样品生物降解。通过减肥研究了不同的生物降解阶段,减弱了总反射傅里叶变换的红外光谱,差示扫描量热计和扫描电子显微镜。发现BF和淀粉树脂的含量对复合材料的性质产生了显着影响。具有更多含量的BF,复合材料表现出更好的弯曲性能和生物降解。减肥和机械性能明显降低表明了微生物引起的降解。生物降解后,复合材料的热稳定性在PP的结晶度增加时降低。结果证明,复合材料更容易倾向于通过微生物降解和同化。 (c)2019 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2019,137,48694。

著录项

  • 来源
    《Journal of Applied Polymer Science》 |2020年第20期|共8页
  • 作者单位

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

    South China Agr Univ Biomass 3D Printing Mat Res Ctr Coll Mat &

    Energy Guangzhou 510642 Guangdong Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业(高聚物工业);
  • 关键词

    biodegradable; biodegradable properties; composites; fibers; mechanical properties;

    机译:可生物降解;可生物降解的性质;复合材料;纤维;机械性能;

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