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材料工程  2017, Vol. 45 Issue (12): 30-36    DOI: 10.11868/j.issn.1001-4381.2017.000102
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
MAH/GMA共接枝聚乳酸对木粉/PLA复合材料性能的影响
杜军1, 宋永明1, 张志军1, 房轶群1, 王伟宏1, 王清文1,2
1. 东北林业大学 生物质材料科学与技术教育部重点实验室, 哈尔滨 150040;
2. 华南农业大学 材料与能源学院, 广州 510642
Influence of Maleic Anhydride/Glycidyl Methacrylate Cografted Polylactic Acid on Properties of Wood Flour/PLA Composites
DU Jun1, SONG Yong-ming1, ZHANG Zhi-jun1, FANG Yi-qun1, WANG Wei-hong1, WANG Qing-wen1,2
1. Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China;
2. College of Materials and Energy, South China Agriculture University, Guangzhou 510642, China
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摘要 采用熔融接枝法分别制备马来酸酐接枝聚乳酸、甲基丙烯酸缩水甘油酯接枝聚乳酸和马来酸酐/甲基丙烯酸缩水甘油酯共接枝聚乳酸,并利用红外光谱对接枝共聚物进行结构表征。分别以三种接枝共聚物为相容剂,采用注塑成型制备了木粉/PLA复合材料。利用扫描电子显微镜(SEM)对复合材料的断面形貌进行微观分析,结果表明,加入不同接枝共聚物后木粉/PLA复合材料两相看不出明显相界面,界面相容性得到改善。对不同接枝共聚物制备的复合材料的力学性能、加工流动性能和动态流变性能测定的结果显示,加入MAH/GMA共接枝聚乳酸后的木粉/PLA复合材料和未添加相容剂的复合材料相比,拉伸强度和冲击强度分别提高了9.54%和7.23%,复合体系的平衡扭矩和剪切热提高,储能模量及复数黏度均增大。
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杜军
宋永明
张志军
房轶群
王伟宏
王清文
关键词 聚乳酸马来酸酐甲基丙烯酸缩水甘油酯聚乳酸接枝共聚物相容性    
Abstract:Graft copolymers of PLA-g-MAH, PLA-g-GMA and PLA-co-MAH/GMA were prepared by means of melt grafting. The structure of the graft copolymers were characterized by FTIR.Wood flour/PLA composites were prepared by injection molding with three kinds of graft copolymers as compatibilizers, and the fractured morphology of composites was investigated by scanning electron microscope (SEM). Results show that there is no obvious phase interface between wood flour and PLA,which indicating the interfacial compatibility of wood flour/PLA composites is improved after adding different graft copolymers. The determination results of mechanical properties, processing flowability and dynamic rheological property of composites prepared with different graft copolymers reveal that, compared to the composite without compatibilizer, the tensile strength and impact strength of wood flour/PLA composites are increased by 9.54% and 7.23% respectively, and the equilibrium torque, shear heat, storage modulus and complex viscosity are all increased after adding maleic anhydride/glycidyl methacrylate cografted polylactic acid.
Key wordspolylactic acid    maleic anhydride    glycidyl methacrylate    PLA grafted copolymer    compati-bility
收稿日期: 2017-01-22      出版日期: 2017-12-19
中图分类号:  TB332  
通讯作者: 宋永明(1978-),男,副教授,博士,研究方向为生物质聚合物复合材料,联系地址:黑龙江省哈尔滨市香坊区和兴路51号东北林业大学生物质材料科学与技术教育部重点实验室(150040),E-mail:ymsong@nefu.edu.cn     E-mail: ymsong@nefu.edu.cn
引用本文:   
杜军, 宋永明, 张志军, 房轶群, 王伟宏, 王清文. MAH/GMA共接枝聚乳酸对木粉/PLA复合材料性能的影响[J]. 材料工程, 2017, 45(12): 30-36.
DU Jun, SONG Yong-ming, ZHANG Zhi-jun, FANG Yi-qun, WANG Wei-hong, WANG Qing-wen. Influence of Maleic Anhydride/Glycidyl Methacrylate Cografted Polylactic Acid on Properties of Wood Flour/PLA Composites. Journal of Materials Engineering, 2017, 45(12): 30-36.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.000102      或      http://jme.biam.ac.cn/CN/Y2017/V45/I12/30
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