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首页> 外文期刊>Journal of Polymers and the Environment >Study on Mechanical and Thermal Properties of Poly(Lactic acid)/Poly(Butylene adipate-co-terephthalate)/Office Wastepaper Fiber Biodegradable Composites
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Study on Mechanical and Thermal Properties of Poly(Lactic acid)/Poly(Butylene adipate-co-terephthalate)/Office Wastepaper Fiber Biodegradable Composites

机译：聚乳酸/聚己二酸丁二醇酯-对苯二甲酸对苯二甲酸酯/办公室废纸纤维可生物降解复合材料的力学和热学性能研究

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摘要

Office wastepaper fibers(OWF)/poly(butylene adipate-co-terephthalate) (PBAT)/poly(lactic acid) (PLA) biodegradable composites with different mass ratio were made by melt blending and injection moulding process. At the same time, the use of MAPLA and KH560 was studied as a potential approach for improving interfacial adhesion between OWF, PBAT and PLA. The results revealed that with the increasing of PBAT, the notched impact strength of PLA/PBAT/OWF composites can be first increased and then decreased. When the content of PBAT was 20wt%, the notch impact strength of PLA/PBAT/OWF composite was the highest, increased by 291% compared with pure PLA. TGA results revealed that the onset degradation temperature of the composites can be increased and its thermal decomposition step can be changed. According to the crystallization and melting performance table, OWF can act as nucleating agent to promote the crystallization properties of composites, while PBAT can prevent the crystallization and the higher the content is, the more obvious it is. It can be seen from the SEM figures that the addition of MAPLA and KH560 simultaneously makes the composites interface bond closer, thus improving the interface performance of PLA/20PBAT/OWF composite. Among the three kinds of modified composites, PLA/20PBAT/OWF/MK composite has the lowest water absorption and the best comprehensive performance.
机译：通过熔融共混和注塑工艺制备了不同质量比的办公废纸纤维（OWF）/聚己二酸丁二酯-对苯二甲酸乙二醇酯（PBAT）/聚乳酸（PLA）可生物降解复合材料。同时，研究了使用MAPLA和KH560作为改善OWF，PBAT和PLA之间的界面附着力的潜在方法。结果表明，随着PBAT的增加，PLA / PBAT / OWF复合材料的缺口冲击强度可以先增加后降低。当PBAT含量为20wt％时，PLA / PBAT / OWF复合材料的缺口冲击强度最高，比纯PLA提高了291％。 TGA结果表明，可以提高复合材料的起始降解温度，并且可以改变其热分解步骤。根据结晶和熔融性能表，OWF可以作为成核剂来促进复合材料的结晶性能，而PBAT可以防止结晶，并且含量越高，则越明显。从SEM图中可以看出，同时添加MAPLA和KH560使复合材料的界面粘合更紧密，从而改善了PLA / 20PBAT / OWF复合材料的界面性能。在这三种改性复合材料中，PLA / 20PBAT / OWF / MK复合材料具有最低的吸水率和最佳的综合性能。

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  • 来源
    《Journal of Polymers and the Environment》 |2019年第6期|1273-1284|共12页
  • 作者

    Xu Chong; Zhang Xiaolin; Jin Xiao; Nie Sunjian; Yang Rui;

  • 作者单位

    Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Shaanxi, Peoples R China;

    Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Shaanxi, Peoples R China;

    Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Shaanxi, Peoples R China;

    Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Shaanxi, Peoples R China;

    Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Shaanxi, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Biocomposite; Mechanical properties; Thermal properties; Interface modification;

    机译：生物复合材料;机械性能;热性能;界面改性;

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