| PLA-g-GMA/Ope-POSS/PLA复合材料的制备与性能 |
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| 引用本文： | 陈一,罗礼发,曾广胜,刘文勇.PLA-g-GMA/Ope-POSS/PLA复合材料的制备与性能[J].复合材料学报,2016,33(1):61-70. |
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| 作者姓名： | 陈一 罗礼发 曾广胜 刘文勇 |
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| 作者单位： | 1. 湖南工业大学 包装与材料工程学院, 株洲 412008;
2. 正业(中山)包装有限公司, 中山 442000 |
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| 基金项目： | 国家科技支撑计划项目(2014BAD02B06)，广东省科技计划(2013B090600120)，中山市产学研合作项目(2013C2FC0022) |
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| 摘 要： | 为了制备具有优异强度与韧性的聚乳酸(PLA)复合材料,首先,将八聚(丙基缩水甘油醚)倍半硅氧烷(Ope-POSS)纳米粒子引入PLA中,并加入PLA接枝甲基丙烯酸缩水甘油酯(PLA-g-GMA)作为增容增韧组分;然后,通过熔融共混法制备了PLA-g-GMA/Ope-POSS/PLA复合材料;最后,通过对复合材料形态结构、热性能、力学性能及疏水性的表征分析了Ope-POSS纳米粒子及PLA-g-GMA的加入对PLA复合材料性能的影响。结果表明:PLA-g-GMA的加入对Ope-POSS纳米粒子具有良好的增容效果,可使得Ope-POSS纳米粒子在复合材料中均匀分散;随着良好分散的Ope-POSS纳米粒子的数量增加,PLA复合材料的强度、热稳定性及疏水性均得到明显的提高,韧性也随PLA-g-GMA含量增加而得到改善;当PLA-g-GMA和Ope-POSS纳米粒子含量分别为PLA的4wt%和3wt%时,PLA-g-GMA/Ope-POSS/PLA复合材料性能最佳。所得结论为POSS杂化PLA复合材料的深入研究提供了理论指导。
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| 关 键 词： | 聚乳酸 聚乳酸接枝甲基丙烯酸缩水甘油酯 八聚(丙基缩水甘油醚)倍半硅氧烷 力学性能 热性能 |
| 收稿时间： | 2015-01-19 |
Preparation and properties of PLA-g-GMA/Ope-POSS/PLA composites |
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| CHEN Yi,LUO Lifa,ZENG Guangsheng,LIU Wenyong.Preparation and properties of PLA-g-GMA/Ope-POSS/PLA composites[J].Acta Materiae Compositae Sinica,2016,33(1):61-70. |
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| Authors: | CHEN Yi LUO Lifa ZENG Guangsheng LIU Wenyong |
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| Affiliation: | 1. School of Materials and Packaging, Hunan University of Technology, Zhuzhou 412008, China;
2. ZhengYe Packaging Limited Company of Zhongshan, Zhongshan 442000, China |
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| Abstract: | In order to prepare the polylactic acid (PLA) composites with excellent strength and toughness, octa (propylglycidyl ether) polyhedral oligomeric silsesquioxane (Ope-POSS) nano particles were added into PLA, and PLA grafted by glycidyl methacrylate (PLA-g-GMA) was added as compatibilization and toughening component firstly. Then, PLA-g-GMA/Ope-POSS/PLA composites were prepared by melt blending method. Finally, by the characterization of morphological structure, thermal properties, mechanical properties and hydrophobicity of the composites, the effects of the addition of Ope-POSS nano particles and PLA-g-GMA on the properties of the PLA composites were analyzed. The results show that the addition of PLA-g-GMA plays an effective compatibilizing effect for Ope-POSS nano particles, resulting in the better dispersion of Ope-POSS nano particles in the composites. With the amount of well dispersed Ope-POSS nano particles increasing, the strength, thermostability and hydrophobicity of PLA composites are all improved significantly, and the toughness is also advanced with PLA-g-GMA content increasing. When the PLA-g-GMA and Ope-POSS nano particle contents are 4wt% and 3wt% of PLA respectively, the properties of PLA-g-GMA/Ope-POSS/PLA composite are optimal. The obtained conclusions provide theoretical guidance for the further investigation of POSS hybridized PLA composites. |
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| Keywords: | polylactic acid polylactic acid grafted by glycidyl methacrylate octa(propylglycidyl ether) polyhedral oligomeric silsesquioxane mechanical properties thermal properties |
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