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材料工程  2013, Vol. 0 Issue (10): 20-23    DOI: 10.3969/j.issn.1001-4381.2013.10.003
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
SBS共混增韧PLA复合材料的制备与性能
杨继年1, 许爱琴2, 程国君1, 于秀华1
1. 安徽理工大学 材料科学与工程学院, 安徽 淮南 232001;
2. 沃利帕森工程技术有限公司 南京分公司, 南京 210019
Fabrication and Properties of PLA Composites Toughened by SBS
YANG Ji-nian1, XU Ai-qin2, CHENG Guo-jun1, YU Xiu-hua1
1. School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China;
2. Worley Parsons China Nanjing Office, Nanjing 210019, China
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摘要 采用熔融共混与模压成型工艺制备了苯乙烯-丁二烯嵌段共聚物(SBS)共混增韧PLA复合材料, 考察了SBS的添加量对共混体系的微观形貌、力学性能和热性能的影响。结果表明, SBS/PLA复合材料呈现典型的"海-岛"两相结构, SBS粒子在基体中分散均匀且与PLA间具有较好的界面结合;随着SBS质量分数的增加, SBS/PLA复合材料的抗拉强度和弹性模量均下降, 而断裂伸长率和冲击韧性呈持续上升的变化趋势;SBS的引入使PLA的热分解温度向高温区偏移, 显著改善了SBS/PLA复合材料的热稳定性能。
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杨继年
许爱琴
程国君
于秀华
关键词 聚乳酸苯乙烯-丁二烯嵌段共聚物增韧热稳定性    
Abstract:The composites of poly (lactic acid) (PLA) toughened by styrene-butadiene block copolymer (SBS) were prepared via molten blending and compression molding. The effects of SBS contents were investigated on the morphologies, mechanical and thermal properties of composites. The results show that typical droplet-matrix morphologies of SBS/PLA composites were observed with well dispersed SBS particles in matrix and fine interfacial adhesion between SBS and PLA. The tensile strength and elastic modulus were decreased, however, the elongation at break and impact toughness of SBS/PLA composites were constantly increased with increasing SBS mass fraction within the range of research. The heat stability of SBS/PLA composites was greatly improved by the introduction of SBS with the evidence of thermo-decomposing temperature shifting to high temperature zone obviously.
Key wordspoly (lactic acid)    styrene-butadiene block copolymer    toughening    thermal stability
收稿日期: 2012-09-25      出版日期: 2013-10-20
1:  TQ323.9  
基金资助:安徽高校省级自然科学研究项目(KJ2013Z067);安徽理工大学博士启动基金(2010-11060)
作者简介: 杨继年(1981- ),男,讲师,博士,研究方向是聚合物基复合材料/泡沫材料,联系地址:安徽淮南市安徽理工大学材料科学与工程学院(232001),E-mail:yangjinian@163.com
引用本文:   
杨继年, 许爱琴, 程国君, 于秀华. SBS共混增韧PLA复合材料的制备与性能[J]. 材料工程, 2013, 0(10): 20-23.
YANG Ji-nian, XU Ai-qin, CHENG Guo-jun, YU Xiu-hua. Fabrication and Properties of PLA Composites Toughened by SBS. Journal of Materials Engineering, 2013, 0(10): 20-23.
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