详细信息
文献类型:期刊文献
中文题名:PBAT/PLA薄膜的制备及性能研究
英文题名:Preparation and Properties of PBAT/PLA Film
作者:杨冰[1,2];张自强[1];张以河[1];季君晖[2];许颖[2];蒋丹[3]
第一作者:杨冰
机构:[1]中国地质大学材料科学与工程学院;[2]中国科学院理化技术研究所工程塑料与国家工程研究中心;[3]北京联合大学生物化学工程学院
第一机构:中国地质大学材料科学与工程学院,北京100083
年份:2015
卷号:0
期号:3
起止页码:45-50
中文期刊名:中国塑料
外文期刊名:China Plastics
收录:CSTPCD;;Scopus;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;
语种:中文
中文关键词:聚对苯二甲酸-己二酸-丁二醇酯;聚乳酸;力学性能;生物降解性能;相容性
外文关键词:polybutyleneadipate-co-terephthalate;;poly(lactic acid);;mechanical property;;biodegradale property;;compatibility
摘要:将聚乳酸(PLA)和聚对苯二甲酸-己二酸-丁二醇酯(PBAT)共混制备成共混材料,探讨了不同PLA含量对材料性能的影响。结果表明,PBAT/PLA共混材料中,随着PLA含量的增加,拉伸强度先降低后升高,当PLA含量为90%时,拉伸强度达到60.12 MPa,而其断裂伸长率从703%降低至8%,由韧性材料逐渐转变为脆性材料;PLA含量为30%时,性能变化出现拐点;PLA含量为50%时出现明显相分离,且PLA的加入可以加速PBAT材料的结晶,使结晶温度由38℃提高至82℃;PBAT/PLA共混材料在PLA含量低于70%时,都可以实现较好的吹膜过程,且薄膜材料的拉伸强度为39.59 MPa,断裂伸长率不低于137%。
In this study,blends from poly(lactic acid)(PLA) and polybutyleneadipate-coterephthalate(PBAT) was fabricated and the mechanical and bio-degradation properties were studied.It showed that with increasing PLA content,the tensile strength of PBAT/PLA blends increased firstly and then decreased,the elongation at break decreased continuously,and the blends underwent a ductile-brittle transition.When PLA content reached 30 wt%,a mechanical property change point occurred.When PLA content reached 50%,phase separation took place.The addition of PLA could accelerate the crystallization rate of PBAT,which increased the crystallization temperature from 38 C to 82 C.PBAT/PLA film could be fabricated with good mechanical property only if PLA content was below 70%.
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