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《材料导报》期刊社  2018, Vol. 32 Issue (7): 1158-1164    https://doi.org/10.11896/j.issn.1005-023X.2018.07.017
  材料综述 |
无机成核剂改善聚乳酸结晶性能的研究进展
赵西坡1,2, 刘畅1,2, 徐敏1,2, 彭少贤1,2
1 湖北工业大学材料与化学工程学院,绿色轻工材料湖北省重点实验室,武汉 430068;
2 湖北工业大学绿色轻质材料与加工协同创新中心,武汉 430068
Improving the Crystallization of Poly(lactic acid)(PLA) by Adding Inorganic Nucleating Agents: a Review of the Variety
ZHAO Xipo1,2, LIU Chang1,2, XU Min1,2, PENG Shaoxian1,2
1 Hubei Provincial Key Laboratory of Green Materials for Light Industry, School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068;
2 Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068
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摘要 聚乳酸(PLA)是一种半结晶聚合物,结晶速率非常慢,在实际成型加工过程中几乎不结晶,这在很大程度上影响了聚乳酸的耐热性等性能,故可通过改善结晶性能来改善聚乳酸耐热性等性能。添加无机填料是改善聚乳酸结晶性能行之有效的途径。本文主要介绍了以无机填料为成核剂,将其与PLA共混制备结晶性能优良的复合材料。无机成核剂分散在聚乳酸基体中,成为成核位点,增加成核密度;分子间作用力、分子链较高的取向程度以及较高的结晶度使材料的熔融焓增大、熔融熵减小,从而改善PLA的耐热性。
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赵西坡
刘畅
徐敏
彭少贤
关键词:  聚乳酸  无机成核剂  结晶性能  共混改性    
Abstract: As a semi-crystalline polymer, polylactic acid (PLA) has a excruciatingly low crystallization rate, which makes PLA crystallize negligibly during the forming process, and consequently to a large extent attenuates the product’s heat resistance and other properties. Hence the shortcoming mentioned above can be overcome by improving PLA’s crystallization, to which the addition of inorganic fillers is an effective approach. This paper aims to summarize the preparation of variety of composite materials with excellent crystallization performances by blending PLA with different types of inorganic nucleating agent fillers. The inorganic nucleating agent dispersed in the PLA matrix act as a nucleation site to increase the nucleation density. The molecular interaction force, the high orientation of the molecular chain, and the satisfied crystallinity lead to the increment of melting enthalpy and the decline of melting entropy, and thereby benefiting the PLA’S heat resistance.
Key words:  polylactic acid (PLA)    inorganic nucleating agent    crystallizability    blending modification
               出版日期:  2018-04-10      发布日期:  2018-05-11
ZTFLH:  TQ327.9  
基金资助: 国家自然科学基金(51273060);国家级大学生创新创业训练计划项目-创新训练项目
通讯作者:  彭少贤:通信作者,男,1960年生,教授,硕士研究生导师,主要从事多相多组分环境友好高分子材料方面的研究 E-mail:psxbb@126.com   
作者简介:  赵西坡:男,1982年生,博士,副教授,硕士研究生导师,主要从事多相多组分环境友好高分子材料方面的研究 E-mail:xpzhao123@163.com
引用本文:    
赵西坡, 刘畅, 徐敏, 彭少贤. 无机成核剂改善聚乳酸结晶性能的研究进展[J]. 《材料导报》期刊社, 2018, 32(7): 1158-1164.
ZHAO Xipo, LIU Chang, XU Min, PENG Shaoxian. Improving the Crystallization of Poly(lactic acid)(PLA) by Adding Inorganic Nucleating Agents: a Review of the Variety. Materials Reports, 2018, 32(7): 1158-1164.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.07.017  或          http://www.mater-rep.com/CN/Y2018/V32/I7/1158
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