Glycidyl Methacrylate Grafted onto Polylactic Acid Improving the Interfacial Compatibility of Bamboo Fiber/Polylactic Acid Biomass Composites

Sheng-yun ZHAO; Xin-huai GONG; Zhao-li WANG; Xing-ping FU; Xiao-jie ZHAO; Zhong-hao DAI; Hang-zhong LIU; Hong-wei KE

doi:10.14028/j.cnki.1003-3726.2018.11.007

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Glycidyl Methacrylate Grafted onto Polylactic Acid Improving the Interfacial Compatibility of Bamboo Fiber/Polylactic Acid Biomass Composites

更新时间：2022-09-05

- Glycidyl Methacrylate Grafted onto Polylactic Acid Improving the Interfacial Compatibility of Bamboo Fiber/Polylactic Acid Biomass Composites
- Polymer Bulletin Vol. 31, Issue 11, Pages: 60-67(2018)
- 作者机构：
  
  武夷学院生态与资源工程学院，福建省竹材工程技术研究中心，福建省生态产业绿色技术重点实验室，武夷山　354300
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2018.11.007
  CLC：
- Published：20 November 2018，
  
  Received：11 June 2018，
  
  Revised：14 September 2018，
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Sheng-yun ZHAO, Xin-huai GONG, Zhao-li WANG, Xing-ping FU, Xiao-jie ZHAO, Zhong-hao DAI, Hang-zhong LIU, Hong-wei KE. Glycidyl Methacrylate Grafted onto Polylactic Acid Improving the Interfacial Compatibility of Bamboo Fiber/Polylactic Acid Biomass Composites. [J]. Polymer Bulletin 31(11):60-67(2018)
DOI：

Sheng-yun ZHAO, Xin-huai GONG, Zhao-li WANG, Xing-ping FU, Xiao-jie ZHAO, Zhong-hao DAI, Hang-zhong LIU, Hong-wei KE. Glycidyl Methacrylate Grafted onto Polylactic Acid Improving the Interfacial Compatibility of Bamboo Fiber/Polylactic Acid Biomass Composites. [J]. Polymer Bulletin 31(11):60-67(2018) DOI： 10.14028/j.cnki.1003-3726.2018.11.007.

摘要

为改善竹纤维（bamboo fiber， BF）与聚乳酸（polylactic acid， PLA）的界面相容性，以过氧化二异丙苯（DCP）为引发剂，采用熔融反应制备了甲基丙烯酸缩水甘油酯接枝聚乳酸（GMA-g-PLA， GPLA）高分子增容剂，考察了 GPLA添加对BF/PLA复合材料结构与性能的影响，并与常用界面改性剂硅烷偶联剂（KH550）和异氰酸酯偶联剂（MDI）进行了比较。结果显示，GPLA添加对BF/PLA复合材料具有良好的界面增容和性能改善作用，其增容效果明显高于KH550和MDI，并在其占复合材料的质量分数为16%时，复合材料力学性能最佳。与未增容复合材料相比，其拉伸、弯曲及缺口冲击强度分别提高了 72. 1%、118. 1%和81. 6%，断裂伸长率提高了 200.0%，维卡软化点提高28. 4%，而浸水24h后吸水率下降31. 6%。

Abstract

To enhance the interfacial compatibility between bamboo fiber (BF) and polylactic acid(PLA)

the copolymer of PLA grafted with glycidyl methacrylate (GMA-g-PLA

GPLA) was synthesized by melt grafting approach using dicumyl peroxide as initiator

the influences of GPLA addition on the interfacial morphology and properties of BF/PLA composites were investigated

and the interfacial compatibilization effect of GPLA was compared with silane coupling agent(KH550) and MDI. The result showed that

the GPLA showed great interfacial compatibilization and properties improvement for the BF/PLA composites

which was much better than the compatibilization efficiency by using MDI or KH550. The BF/PLA composites with 16% mass fraction of GPLA (towards the composites) provided the optimum properties

with an improvement of 72. 10% in tensile strength

118. 1% in flexural strength

81. 6% in notched impact strength

200% in elongation at break and 28. 39% in vicat softing point respectively

and a decrease of 31. 6% in water adsorption compared with those without GPLA.

关键词

竹纤维聚乳酸接枝反应增容效应

Keywords

Bamboo fiberPolylactic acidMelt graftingCompatibilization effects

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