纳米SiO2包覆微晶纤维素对PBS/PLA复合材料性能的影响

doi:10.19491/j.issn.1001-9278.2018.08.005

中国塑料 ›› 2018, Vol. 32 ›› Issue (08): 25-32.DOI: 10.19491/j.issn.1001-9278.2018.08.005

纳米SiO₂包覆微晶纤维素对PBS/PLA复合材料性能的影响

王瑶¹,何连诚¹,柴菁珊²,牛丽姣²,罗义琳²,张秀成³

1. 东北林业大学理学院
2. 黑龙江省阻燃材料分子设计与制备重点实验室

收稿日期:2018-04-24 修回日期:2018-05-04 出版日期:2018-08-26 发布日期:2018-09-26
基金资助:
东北林业大学大学生创新创业训练计划项目;黑龙江省应用技术研究与开发计划项目

Effect of Nano-SiO₂ Wrapping on Microcrystalline Cellulose on the Properties of PLA /PBS Composites

Received:2018-04-24 Revised:2018-05-04 Online:2018-08-26 Published:2018-09-26

摘要/Abstract

摘要： 以纳米二氧化硅(nano-SiO2)表面包覆的微晶纤维素(MCC)为填料，采用熔融共混的方法制备了聚乳酸/聚丁二酸丁二醇酯（PLA/PBS）复合材料。运用扫描电子显微镜、热重分析仪、差示扫描量热仪、动态热力学分析仪等方法研究了nano-SiO2对PLA/PBS/MCC复合材料的力学性能、热稳定性以及结晶行为的影响。结果表明，nano-SiO2包覆在MCC表面后与PLA/PBS熔融共混提高了nano-SiO2在聚合物材料中的分散性，改善了MCC与树脂基体的相容性;添加5 %（质量分数，下同）MCC的PLA/PBS/MCC复合材料，与同样添加量的PLA/PBS/nano-SiO2-MCC复合材料相比，其储能模量、冲击强度以及结晶度分别提高了13.04 %、11.70 %、71.92 %。

Abstract: A type of bio-degradable thermoplastic composites was prepared by melt blending PLA and PBS with the nano-SiO2 particles encapsulated with microcrystalline cellulose (MCC). The effect of nanoSiO2 on the mechanical property, thermal stability and crystallinity of the composites was investigated by SEM, TGA, DSC and DMA. The experimental results indicated that the encapsulation of nano-SiO2 with MCC enhanced the dispersion of nano-SiO2 particles in the matrix due to an improvement in interfacial compatibility between the matrix resins and fillers by MCC. Compared to the PLA/PBS/MCC compounds containing 5 % MCC, the PLA/PBS/nano-SiO2-MCC composite with 5 % MCC exhibited an increase in storage modulus, impact strength and crystallinity degree by 13.04 %, 11.70 % and 71.92 %, respectively.

王瑶何连诚柴菁珊牛丽姣罗义琳张秀成. 纳米SiO₂包覆微晶纤维素对PBS/PLA复合材料性能的影响[J]. 中国塑料, 2018, 32(08): 25-32.

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纳米SiO₂包覆微晶纤维素对PBS/PLA复合材料性能的影响

Effect of Nano-SiO₂ Wrapping on Microcrystalline Cellulose on the Properties of PLA /PBS Composites

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