| 聚乳酸/纳米蒙脱土纳米复合材料的制备与挤出发泡研究 |
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| 引用本文： | 马鹏程,王向东,刘本刚,李莹,陈士宏,张玉霞,许国志.聚乳酸/纳米蒙脱土纳米复合材料的制备与挤出发泡研究[J].中国塑料,2011,25(4):59-64. |
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| 作者姓名： | 马鹏程 王向东 刘本刚 李莹 陈士宏 张玉霞 许国志 |
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| 作者单位： | 北京工商大学材料与机械工程学院; |
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| 摘 要： | 采用熔融插层法制备了聚乳酸/有机改性纳米蒙脱土（PLA/OMMT）复合材料，对其复合结构、力学性能、热性能、动态流变性能进行了测试和表征，并研究了复合材料的挤出发泡行为。结果表明，不同含量的OMMT与PLA进行熔融插层会形成不同的插层与剥离结构；3 %的OMMT可以提高PLA的力学性能、改善热性能；OMMT能够提升PLA的熔体强度，同时在挤出发泡过程中起到成核剂的作用，并且能够减弱发泡剂气体向PLA熔体外部的扩散，从而提高PLA挤出发泡的效果。
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| 关 键 词： | 聚乳酸 蒙脱土 熔融插层 熔体强度 挤出发泡 |
| 收稿时间： | 2011-4-19 |
Study on Preparation and Foaming Extrusion Behavior of PLA/OMMT Nanocomposites |
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| MA Pengcheng,WANG Xiangdong,LIU Bengang,LI Ying,CHEN Shihong,ZHANG Yuxia,XU Guozhi.Study on Preparation and Foaming Extrusion Behavior of PLA/OMMT Nanocomposites[J].China Plastics,2011,25(4):59-64. |
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| Authors: | MA Pengcheng WANG Xiangdong LIU Bengang LI Ying CHEN Shihong ZHANG Yuxia XU Guozhi |
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| Affiliation: | MA Pengcheng,WANG Xiangdong,LIU Bengang,LI Ying,CHEN Shihong,ZHANG Yuxia,XU Guozhi(College of Materials and Mechanical Engineering,Beijing Technology and Business University,Beijing 100048,China) |
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| Abstract: | Poly(lactic acid)(PLA)/montmorillonite(OMMT) nanocomposites was prepared by melt intercalation.Morphology structure,mechanical properties,thermal properties and dynamic rheological behavior of the composites were characterized and tested,and foaming extrusion behavior of the composites was studied.The results showed that by melt intercalating different amounts of OMMT with PLA,different intercalation and peel structure can be formed.3 % OMMT could improve the mechanical properties and thermal properties of ... |
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| Keywords: | poly(lactic acid) montmorillonite melt intercalation melt strength foaming extrusion |
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