CAJ | 학술논문

总结了聚乳酸增韧改性方面的最新研究进展，为新型聚乳酸复合材料的研究开发提供理论依据；概述了共混、复合、共聚、交联、增塑以及添加成核剂等几种增韧技术，并比较了不同增韧方法的特点；通过对合成方法的改进以及进行共混、共聚、复合及增塑等改性，可以显著改善聚乳酸材料的力学性能并同时保持耐热性和降解性能不受影响；开发更加高效的增韧改性剂，增加其与聚乳酸分子链间的界面相互作用并提高复合材料的冲击性能已成为研究工作的努力方向。从微观分子尺度上对聚乳酸进行增韧改性以及设计绿色合成路线仍是目前研究工作的重点。
총결료취유산증인개성방면적최신연구진전，위신형취유산복합재료적연구개발제공이론의거；개술료공혼、복합、공취、교련、증소이급첨가성핵제등궤충증인기술，병비교료불동증인방법적특점；통과대합성방법적개진이급진행공혼、공취、복합급증소등개성，가이현저개선취유산재료적역학성능병동시보지내열성화강해성능불수영향；개발경가고효적증인개성제，증가기여취유산분자련간적계면상호작용병제고복합재료적충격성능이성위연구공작적노력방향。종미관분자척도상대취유산진행증인개성이급설계록색합성로선잉시목전연구공작적중점。
The latest research progress in toughening modification of poly lactic acid (PLA) was summarized in this work,so as to provide a theoretical basis for the research and development of novel PLA-based composite materials. Physical modification,chemical modification,plasticization,as well as several other toughening technologies were outlined,and comparison among them was also presented. The material physical and mechanical properties,optical performance and heat resistance of PLA can be significantly improved through the use of new synthetic method and blending, copolymerization,etc. The development of more efficient toughening modifier,in an attempt to enhance the interfacial interactions between PLA and the toughening fillers,is the direction of further study on PLA. The investigation on PLA toughening from the microscopic molecular scale,together with the design of green synthetic route,remains the focus of current research work.