| 聚乳酸/酯化纤维素/纳米CaCO_3复合材料的制备与表征 |
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| 引用本文： | 邓长勇,张秀成.聚乳酸/酯化纤维素/纳米CaCO_3复合材料的制备与表征[J].中国塑料,2011(1). |
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| 作者姓名： | 邓长勇 张秀成 |
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| 作者单位： | 湖北省利川市第一高级中学;东北林业大学理学院; |
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| 摘 要： | 采用熔融共混法制备了聚乳酸(PLA)/酯化纤维素/纳米CaCO3复合材料,并通过力学性能测试、差示扫描量热仪、热重分析和扫描电镜等测试手段对复合材料的性能进行了表征。结果表明,当酯化纤维素和纳米CaCO3的总含量小于5%时,能够起到较好的增强作用,复合材料的力学性能明显优于纯PLA;酯化纤维素和纳米CaCO3的加入起到了异相成核作用,但会降低复合材料的热稳定性;酯化纤维素在复合材料中分散充分,无聚集现象;但当填料总含量大于10%时,纳米CaCO3发生明显发生聚集。
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| 关 键 词： | 聚乳酸 酯化纤维素 纳米CaCO3 复合材料 制备 表征 |
Preparation and Characterization of PLA/Esterified Cellulose/Nano-CaCO_3 Composites |
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| DENG Changyong,ZHANG Xiucheng.Preparation and Characterization of PLA/Esterified Cellulose/Nano-CaCO_3 Composites[J].China Plastics,2011(1). |
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| Authors: | DENG Changyong ZHANG Xiucheng |
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| Affiliation: | DENG Changyong1,2,ZHANG Xiucheng2(1.No.1 Middle School of Lichuan of Hubei Province,Lichuan 445400,China,2.College of Science,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | Poly(lactic acid)(PLA)/esterified cellulose/nano-CaCO3 composites were prepared via melt blending.Properties of the composites were investigated by means of mechanical properties testing,differential scanning calorimeter,thermogravimetry,and scanning electron microscope.When the filler content was less than 5 %,esterified cellulose could be well dispersed in PLA matrix,and the mechanical properties of the composites were improved obviously compared with pure PLA.The filler acted as a nucleating agent in PLA... |
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| Keywords: | poly(lactic acid) esterified cellulose nano-CaCO3 composite preparation characterization |
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