| 成核剂TMC-328对可生物降解聚乳酸结晶性能的影响 |
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| 引用本文： | 刘小文,徐鼐,林强,潘莉莎,卢凌彬,庞素娟.成核剂TMC-328对可生物降解聚乳酸结晶性能的影响[J].功能材料,2011(Z2). |
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| 作者姓名： | 刘小文 徐鼐 林强 潘莉莎 卢凌彬 庞素娟 |
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| 作者单位： | 海南大学材料与化工学院; |
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| 基金项目： | 海南省重点科技计划资助项目(090502); 科技人员服务企业行动资助项目(2009GJE20014); 海南省自然科学基金资助项目(807022) |
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| 摘 要： | 用熔融法制备了含成核剂TMC-328质量分数分别为0、0.1%、0.2%、0.3%的聚乳酸(PLA)/TMC-328共混物,采用偏光显微镜(POM)、差示扫描量热仪(DSC)及扫描电子显微镜(SEM),研究了PLA共混物的结晶性能、热性能和内部形貌。结果表明,TMC-328对PLA结晶性能的影响体现在PLA的冷结晶过程上,并且最佳添加量为0.1%,相对应的冷结晶温度(Tcc)从126.14℃降到111.40℃,冷结晶焓(ΔHcc)从11.34J/g增加到23.49J/g,在100℃下完全结晶的时间为22min左右,SEM照片显示TMC-328的团聚现象随着含量的增加变得很明显。
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| 关 键 词： | 聚乳酸 成核剂 冷结晶 结晶性能 |
The effect of TMC-328 on crystalline structures property of biodegradable poly(lactic acid) |
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| LIU Xiao-wen,XU Nai,LIN Qiang,PAN Li-sha,LU Ling-bin,PANG Su-juan.The effect of TMC-328 on crystalline structures property of biodegradable poly(lactic acid)[J].Journal of Functional Materials,2011(Z2). |
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| Authors: | LIU Xiao-wen XU Nai LIN Qiang PAN Li-sha LU Ling-bin PANG Su-juan |
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| Affiliation: | LIU Xiao-wen,XU Nai,LIN Qiang,PAN Li-sha,LU Ling-bin,PANG Su-juan (Faculty of Materials and Chemical Engineering,Hainan University,Haikou 570228,China) |
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| Abstract: | A series of poly(lactic acid)(PLA)/ TMC-328 blends were prepared by melt blending based on nucleating agent TMC-328 contents were 0,0.1%,0.2%,0.3%,respectively.This work presented the effect of TMC-328 on poly(lactic acid)(PLA) crystalline structure and property.Various techniques including DSC,SEM and polarized light microscopy(POM) were employed to investigate crystalline structure property and thermal properties for the samples.Experimental results indicated that the influence of TMC-328 on crystallizati... |
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| Keywords: | poly(lactic acid) nucleated agent cold crystallization crystallinity |
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