聚乳酸增韧及结晶改性研究进展

doi:10.19491/j.issn.1001-9278.2020.08.017

中国塑料 ›› 2020, Vol. 34 ›› Issue (8): 113-120.DOI: 10.19491/j.issn.1001-9278.2020.08.017

• 综述 • 上一篇

聚乳酸增韧及结晶改性研究进展

吴保钩¹, 马丕明¹(), 徐鹏武¹, 张勇², 王如寅³

^1.江南大学化学与材料工程学院，江苏无锡 214122
^2.上海交通大学化学化工学院，上海 200240
^3.道达尔科碧恩聚乳酸有限公司，上海，200001

收稿日期:2020-02-28 出版日期:2020-08-26 发布日期:2020-08-26
基金资助:
国家自然科学基金(51873082)

Research Progress in Toughening and Crystalline Modification of Poly(lactic acid)

Baogou WU¹, Piming MA¹(), Pengwu XU¹, Yong ZHANG², Ruyin WANG³

^1.School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
^2.School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
^3.Total Corbion PLA Co, Ltd, Shanghai 200001, China

Received:2020-02-28 Online:2020-08-26 Published:2020-08-26
Contact: Piming MA E-mail:p.ma@jiangnan.edu.cn

摘要/Abstract

摘要：

综述了近期在聚乳酸（PLA）材料的成核结晶、立构复合、增韧与耐热改性方面的工作，重点探讨了成核剂化学结构、快速立构复合技术、反应性增容和退火等技术对PLA材料力学性能的影响，并对PLA材料的应用和发展方向进行了展望。

关键词: 聚乳酸, 成核结晶, 立构复合, 增韧改性, 耐热改性

Abstract:

This paper reviewed the latest research progress in the modification of poly(lactic acid) PLA for nucleation?induced crystallization, stereocomplexation, toughening and heat resistance. The effects of the chemical structure of nucleating agents, rapid stereocomplexation, reactive compatibilization and annealing technology on the physical and mechanical properties of PLA were discussed. Moreover, the applications and development of PLA were prospected.

Key words: poly(lactic acid), nucleation?induced crystallization, stereocomplexation, toughening, heat resistance

中图分类号:

TQ321

吴保钩, 马丕明, 徐鹏武, 张勇, 王如寅. 聚乳酸增韧及结晶改性研究进展[J]. 中国塑料, 2020, 34(8): 113-120.

Baogou WU, Piming MA, Pengwu XU, Yong ZHANG, Ruyin WANG. Research Progress in Toughening and Crystalline Modification of Poly(lactic acid)[J]. China Plastics, 2020, 34(8): 113-120.

图/表 6

图1 乙二酰胺基化合物在PLA熔体中组装过程并诱导PLA结晶相图

Fig.1 The self?assembly of the NA and the crystallization phase diagram of PLA

图2 NCC诱导下PLA立构复合晶体的形貌和成核活性

Fig. 2 Crystal morphology and nucleation activity analysis of NCC?g?PLLA/PDLA blends

图3 PLA/PHA/NCC?g?PDLA的熔体流动过程中的轴承式滚动模型示意图及偏光显微照片

Fig. 3 Schematic illustration of a proposed core?shell?like structure and the POM images of the PLLA/PHA/NCC?g?PDLA

图4 PLA/EVA共混物冲击韧性与VA含量的关系曲线（PLA与EVA的质量比为80/20）

Fig.4 Impact strength of the PLA/EVA (80/20) blends as a function of VA content in the EVA copolymers

图5 PLA基纳米复合材料的形貌、韧性和耐热性能

Fig.5 Morphology, notched impact strength and storage modulus of PLA?based nanocomposites

全国塑料制品标准化技术委员会(TC48)

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聚乳酸增韧及结晶改性研究进展

Research Progress in Toughening and Crystalline Modification of Poly(lactic acid)

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