| 聚乳酸/无机填料复合材料结构与性能的研究 |
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| 引用本文： | 舒友,邹俊.聚乳酸/无机填料复合材料结构与性能的研究[J].塑料科技,2011,39(9). |
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| 作者姓名： | 舒友 邹俊 |
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| 作者单位： | 1. 云南煤化工应用技术研究院,云南昆明,650233
2. 江苏科技大学材料科学与工程学院 江苏镇江212003 |
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| 摘 要： | 采用密炼器熔融共混法,将聚乳酸(PLA)分别与碳酸钙(CaCO3)、蒙脱土(MMT)及滑石粉(Talc)共混制备成生物降解复合材料,研究了PLA/无机填料共混物的力学性能、断面微观结构及结晶性能。结果表明:CaCO3、MMT和Talc均降低了PLA的断裂伸长率;Talc和CaCO3对PLA的拉伸强度影响不大,MMT明显降低了PLA的拉伸强度;Talc和CaCO3相对MMT在PLA基体中的分散较均匀;CaCO3和MMT改善PLA结晶性能的效果不明显,而Talc大大提高了PLA的结晶性能使,PLA的结晶温度下降约20℃结,晶度提高近3%。
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| 关 键 词： | 聚乳酸 碳酸钙 蒙脱土 滑石粉 生物降解 |
Study on Structure and Properties of PLA/Inorganic Filler Composites |
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| Shu You,Zou Jun.Study on Structure and Properties of PLA/Inorganic Filler Composites[J].Plastics Science and Technology,2011,39(9). |
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| Authors: | Shu You Zou Jun |
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| Affiliation: | Shu You1,Zou Jun2(1) 1 Applied Technology Research Institute of Yunnan Coal Chemical Industry,Kunming 650233,China 2 School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China |
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| Abstract: | Biodegradable composite materials were prepared with poly(lactic acid) and calcium carbonate,montmorillonite and talc by means of melt blending method in a mixing device,and then the mechanical properties,fractured surfaces microstructure and crystal properties of the blends were investigated.The results indicate that: the elongation at break of poly(lactic acid) is decreased with the addition of calcium carbonate,montmorillonite and talc;the tensile strength has no obvious changes with the addition of talc... |
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| Keywords: | Poly(lactic acid) Calcium carbonate Montmorillonite Talc Biodegradation |
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