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| 有机玻璃的增韧研究 | |
| 引用本文： | 黄承亚,李赟,龚克成,阎利,王绍东,李红.有机玻璃的增韧研究[J].塑料工业,2003,31(3):22-25. |
| 作者姓名： | 黄承亚 李赟 龚克成 阎利 王绍东 李红 |
| 作者单位： | 1. 华南理工大学材料学院,广东,广州,510641 2. 重庆大学材料学院,重庆,400045 3. 广东工业大学轻化工学院,广东,广州,500090 |
| 基金项目： | 国家自然科学基金资助项目 ( 5 0 175 0 2 6) |
| 摘 要： | 研究了不同聚合方法制备的聚丙烯酸丁酯（PBA）对浇铸型有机玻璃（PMMA）的增韧改性，研究结果表明，当PBA以纳米粒子簇分散在PMMA基体中时，对PMMA有较好的增韧改性效果。当PMMA中无皂乳液聚合PBA（e-PBA)的质量分数为0.5%时。改性PMMA的冲击强度比基体提高38%。SEM观察表明，本体聚合PBA（b-PBA)橡胶粒子以独特的纳米簇状结构均匀分布在PMMA基体中，大量的微裂纹以b-PBA粒子为中心呈放射状向外辐射，这些微裂纹在试样破坏的过程中吸收了大量的冲击能，使改性PMMA韧性得以提高。 |
| 关 键 词： | 有机玻璃 增韧 研究 聚甲基丙烯酸甲酯 聚丙烯酸丁酯 纳米粒子簇 |
| 文章编号： | 1005-5770(2003)03-0022-04 |
| 修稿时间： | 2002年11月4日 |
Research on Toughening of PMMA |
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| HUANG Cheng ya ,LI Yun ,GONG Ke cheng ,YIAN Li ,WANG Shao dong ,LI Hong.Research on Toughening of PMMA[J].China Plastics Industry,2003,31(3):22-25. | |
| Authors: | HUANG Cheng ya LI Yun GONG Ke cheng YIAN Li WANG Shao dong LI Hong |
| Affiliation: | HUANG Cheng ya 1,LI Yun 1,GONG Ke cheng 1,YIAN Li 2,WANG Shao dong 2,LI Hong 3 |
| Abstract: | The toughening modification of casting PMMA by PBA was investigated in this paper, in which PBA was made by different polymerization The results showed that PBA was a good toughener when dispersed in PMMA matrix as nanometer particle cluster The impact strength of PMMA modified by e PBA increased 38% when the e PBA mass fraction was 0 5wt% The photographs of SEM showed on the surface of the modified PMMA there had lots of crazes, which looked like spoke with PBA particle as center These crazes absorbed the impact energy and improved the toughness of the modified PMMA during break test |
| Keywords: | PMMA Toughening PBA Nanometer particle Cluster |
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