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聚乳酸(PLA)/己二酸-对苯二甲酸-丁二酯共聚物(PBAT)/乙酰化柠檬酸三丁酯(ATBC)共混物的结晶行为
引用本文:卢伟,李雅明,杨钢,李启成,肖汉文,叶正涛.聚乳酸(PLA)/己二酸-对苯二甲酸-丁二酯共聚物(PBAT)/乙酰化柠檬酸三丁酯(ATBC)共混物的结晶行为[J].胶体与聚合物,2008,26(2):19-21.
作者姓名:卢伟  李雅明  杨钢  李启成  肖汉文  叶正涛
作者单位:湖北大学材料科学与工程学院,武汉,430062
摘    要:采用熔融共混法制备聚乳酸(PLA)/己二酸-对苯二甲酸-丁二酯共聚物(PBAT)/乙酰化柠檬酸三丁酯(ATBC)共混物。用差示扫描量热仪(DSC)和偏光显微镜(POM)分析了乙酰化柠檬酸三丁酯(ATBC)对共混物PLA结晶行为的影响。结果表明当PLA/PBAT含量为80/20(质量比)时,随着ATBC量的增加,PLA的Tg、Tc和Tm降低,结晶度提高,球晶生长速率增加。

关 键 词:聚乳酸  己二酸-对苯二甲酸-丁二酯共聚物  乙酰化柠檬酸三丁酯  结晶行为

Crystallization behavior of PLA/PBAT/ATBC blends
Lu Wei,Li Yaming,Yang Gang,Li Qicheng,Xiao Hanwen,Ye Zhengtao.Crystallization behavior of PLA/PBAT/ATBC blends[J].Chinese Journal of Colloid and Polymer,2008,26(2):19-21.
Authors:Lu Wei  Li Yaming  Yang Gang  Li Qicheng  Xiao Hanwen  Ye Zhengtao
Affiliation:Faculty of Materials Science and Engineering Hubei University Wuhan 430062
Abstract:Poly(lactic acid) (PLA),poly(butylene adipate-co-terephthalate) (PBAT) and tributyl o-acetylcitrate (ATBC) blends were prepared by means of melting blending.Effect of tributyl o-acetylcitrate loading on the crystallization behaviors of PLA in the blends was studied by means of differential scanning calorimetry (DSC) and polarized optical micrograph (POM).The results showed that the glass transition tem- perature (T_g),the cold crystalline temperature (T_c) and the melting point (T_m) of PLA in the blends decreased, but the degree of crystallinity and the spherulitic growth rate of PLA in the blends increased with increasing of ATBC loading when the ratio of PLA to PBAT (mass ratio) in the blends was 80/20.
Keywords:Poly(lactic acid)  Poly(butylene adipate-co-terephthalate)  Tributyl O-Acetylcitrate  Crystallization behavior
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