材料科学与工程学报2024，Vol.42Issue(3)：351-361,11.DOI:10.14136/j.cnki.issn1673-2812.2024.03.001
超韧PLA/m-POE/P(BF-PBAD)复合材料的制备与性能
Preparation and Properties of Ultra-toughness PLA/m-POE/P(BF-PBAD)Composites
摘要
Abstract
A novel ultra-tough poly(lactic acid)/glycidyl methacrylate-modified polyolefin elastomer/bio-based polyester elastomer(PLA/m-POE/P(BF-PBAD))composite was successfully prepared using a self-prepared bio-based polyester elastomer P(BF-PBAD)as compatibilizer,and its properties and toughening mechanism were investigated.With only 3 phr loading of P(BF-PBAD),the impact strength of the composite reaches a remarkable value of 42 kJ/m2,which is about 1400%enhancement compared with pure PLA.Furthermore,the composites exhibit excellent mechanical properties,and their tensile strength,elongation at break,flexural strength and flexural modulus are about 40 MPa,120%,50 MPa and 1800 MPa,respectively.Meanwhile,the PLA composites exhibit thermal stability with improved glass transition and higher melting temperatures compared with pure PLA.The cold crystalline behavior of PLA composites during the second heating process was improved by the introduction of P(BF-PBAD).The results indicate that the ultra-toughness of PLA/m-POE/P(BF-PBAD)composites mainly originate from the enhancement of interfacial compatibility.关键词
PLA复合材料/界面增容/冲击韧性Key words
PLA composites/Interface enlargement/Impact toughness引用本文复制引用
李智,陈锋,邱碧薇,上官勇刚,郑强..超韧PLA/m-POE/P(BF-PBAD)复合材料的制备与性能[J].材料科学与工程学报,2024,42(3):351-361,11.基金项目
This work was supported by the National Natural Science Foundation of China(52373091,52173084,51973192,51603122) （52373091,52173084,51973192,51603122）
Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(2021SZ-FR002) （2021SZ-FR002）
