材料科学
极限抗拉强度
复合材料
延伸率
弹性体
聚乳酸
艾氏冲击强度试验
原位
结晶
聚烯烃
乳酸
聚合物
化学工程
化学
遗传学
有机化学
图层(电子)
生物
细菌
工程类
作者
Jing Sun,Jian Li,Anrong Huang,Juan Li,Shanshan Luo,Min Shi,Chengtao Gao,Zhu Luo
摘要
Abstract In situ microfibrillar poly(lactic acid) (PLA)/polyolefin elastomer (POE) composites (MFCs) with and without compatibilizer POE‐ g ‐GMA were prepared using a multistage stretching equipment. The results showed that the distribution of PLA inside the POE matrix for the MFCs without compatibilizer was in the form of microfibrils, and most of the PLA microfibrils were well‐oriented and arranged in the matrix. Further, the high PLA content was more likely to form longer PLA microfibrils in MFCs. With the increase in the amount of POE‐ g ‐GMA for (PLA/POE, 20/80) system, the length of PLA microfibrils significantly decreased, whereas the average diameter increased. The addition of 2 wt% POE‐ g ‐GMA increased the tensile strength and elongation at the break of POE‐20‐2 by 52.7% and 53.5%, respectively, and the crystallization temperature increased by about 4°C.
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