| 聚乳酸/柠檬酸三丁酯固-液共混材料的制备与性能研究 |
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| 引用本文： | 张 伟,刘 菲. 聚乳酸/柠檬酸三丁酯固-液共混材料的制备与性能研究[J]. 包装工程, 2012, 33(17): 15-18 |
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| 作者姓名： | 张 伟 刘 菲 |
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| 作者单位： | 西安理工大学 |
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| 摘 要： | 采用双螺杆挤出机液体进料工艺,制备了聚乳酸/柠檬酸三丁酯(PLA/TBC)固-液共混材料,表征了其性能。结果表明:双螺杆挤出机液体进料工艺能够精确控制TBC在PLA中的质量分数;傅里叶红外光谱仪微观结构表征了2877cm-1特征峰的出现、羟基伸缩振动峰红移,证明TBC对PLA起到了增塑作用;当TBC含量为16%(质量分数)时共混材料从脆性材料转变为韧性材料;降解实验显示,这种共混薄膜在6个月内性能基本消失,轻微受力时薄膜粉碎。
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| 关 键 词： | 聚乳酸 柠檬酸三丁酯 固-液共混材料 |
| 收稿时间： | 2012-06-08 |
| 修稿时间： | 2012-09-10 |
Preparation and Characterization of Polylactide Acid/Tributyl Citrate Solid-liquid Blend Materials |
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| ZHANG Wei and LIU Fei. Preparation and Characterization of Polylactide Acid/Tributyl Citrate Solid-liquid Blend Materials[J]. Packaging Engineering, 2012, 33(17): 15-18 |
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| Authors: | ZHANG Wei and LIU Fei |
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| Affiliation: | (Xi′an University of Technology,Xi′an 710048,China) |
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| Abstract: | PLA/TBC solid-liquid blend materials were prepared through liquid feeding process in twin-screw extruder and its performance was characterized.Test results showed that the twin-screw extruder liquid feeding process can precisely control the mass fraction of the PLA in TBC score.2877 cm-1 the characteristic peak and the emergence of —OH telescopic vibrating peaks red-shift was founded in FT-IR spectrometer inspection,which proved that TBC has the plastic role;when TBC content w=16%,its mechanical performance of materials change from brittle into ductile material;through the degradation test,the mechanical properties of PLA/TBC blend materials disappearance within 180 days and the film changes into pieces form by slightly power. |
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| Keywords: | polylactide acid tributyl citrate solid-liquid blend materials |
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