聚乳酸生物质成核剂研究进展

doi:10.19491/j.issn.1001-9278.2020.06.017

中国塑料 ›› 2020, Vol. 34 ›› Issue (6): 110-117.DOI: 10.19491/j.issn.1001-9278.2020.06.017

聚乳酸生物质成核剂研究进展

曹齐茗¹^,², 孟鑫¹^,²(), 公维光¹^,², 李晨洋¹^,², 姚中阳¹^,²

^1.华东理工大学化工学院，上海市多相尺度重点实验室，上海 200237
^2.华东理工大学化工学院产品工程系，上海 200237

收稿日期:2019-12-02 出版日期:2020-06-26 发布日期:2020-06-26

Research of Biomass Nucleating Agents for Polylactic Acid

Qiming CAO¹^,², Xin MENG¹^,²(), Weiguang GONG¹^,², Chenyang LI¹^,², Zhongyang YAO¹^,²

^1.Shanghai Key Laboratory of Multiphase Measurement，School of Chemical Engineering，East China University of Science and;Technology，Shanghai 200237，China
^2.Department of Product Engineering，School of Chemical Engineering，East China University;of Science and Technology，Shanghai 200237，China

Received:2019-12-02 Online:2020-06-26 Published:2020-06-26
Contact: Xin MENG E-mail:mengxin@ecust.edu.cn

摘要/Abstract

摘要：

成核剂在改善聚乳酸（PLA）结晶性能中具有重要作用,本文介绍了PLA的结晶行为，综述了PLA用生物质成核剂的国内外研究进展，包括多糖类成核剂淀粉、纤维素、甲壳素、壳聚糖和环糊精，酚类成核剂木质素，醇类成核剂肌醇，蛋白质类成核剂氨基酸以及羧酸类成核剂乳清酸；其次，提出了目前生物质成核剂应用中存在的问题与改性方法；最后，展望了PLA生物质成核剂未来发展前景。

关键词: 聚乳酸, 生物质, 成核剂

Abstract:

Nucleating agents play a very important role in the crystallization of polylactic acid (PLA). This paper introduced the crystallization mechanisms of PLA and the development status of biomass nucleating agents for PLA in China and overseas. These biomass nucleating agents included polysaccharide (starch, cellulose, chitin, chitosan and cyclodextrin), phenol (lignin), alcohol (inositol), protein (amino acid) and carboxylic acid (orotic acid). Furthermore, the problems in the applications of biomass nucleating agents for PLA were analyzed, and their development in the future was prospected.

Key words: polylactic acid, biomass, nucleating agent

中图分类号:

TQ321

曹齐茗, 孟鑫, 公维光, 李晨洋, 姚中阳. 聚乳酸生物质成核剂研究进展[J]. 中国塑料, 2020, 34(6): 110-117.

Qiming CAO, Xin MENG, Weiguang GONG, Chenyang LI, Zhongyang YAO. Research of Biomass Nucleating Agents for Polylactic Acid[J]. China Plastics, 2020, 34(6): 110-117.

图/表 11

图1 丙交酯和乳酸的结构

Fig.1 The structure of Lactide and lactic acid

图2 PLA晶型结构模型

Fig.2 Crystal structure model of PLA

图3 硅烷偶联剂改性淀粉以及熔融共混示意图

Fig.3 Steps of starch coupling reaction with CPMS and melt blend

图4 纤维素纳米晶制备示意图

Fig.4 Schematic drawing (not to scale) of CNC

图5 甲壳素的结构式

Fig.5 Chemical structure of chitin

图6 壳聚糖的结构式

Fig.6 Chemical structure of chitosan

图7 包合物形成过程示意图

Fig. 7 Schematic diagram of inclusion complex formation process

图8 温度为125 ℃时PLA?IC的偏光显微镜图像

Fig.8 POM image of PLA?IC at 125 ℃

图9 木质素单分子化学结构示意图

Fig. 9 Monolignol chemical structures of LIG

图10 肌醇9种异构体的分子结构式

Fig.10 The structures of nine isomers of inositols

图11 乳清酸分子结构式

Fig. 11 Structure of OA

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聚乳酸生物质成核剂研究进展

Research of Biomass Nucleating Agents for Polylactic Acid

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