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| 聚醚酰亚胺对共聚双马树脂的增韧作用 | |
| 引用本文： | 刘刚,刘奇涛,凌辉,宁荣昌,叶保民.聚醚酰亚胺对共聚双马树脂的增韧作用[J].中国胶粘剂,2008,17(4):6-9. |
| 作者姓名： | 刘刚 刘奇涛 凌辉 宁荣昌 叶保民 |
| 作者单位： | 1. 西北工业大学理学院应用化学系,陕西,西安,710072 2. 兵工202研究所,陕西,成阳,712099 3. 741厂,陕西,西安,710068 |
| 摘 要： | 采用聚醚酰亚胺(PEI)来提高共聚双马树脂的断裂韧性。实验结果表明,PEI是共聚双马树脂的有效增韧剂;分别加入10份和12.5份的PEI,可使共聚双马树脂的断裂韧性(GIC)分别提高到650J/m2和805J/m2,弯曲模量变化不大,弯曲强度则小幅度下降。用扫描电子显微镜(SEM)和动态力学分析(DMA)研究了改性树脂体系的微观结构,发现其断裂韧性主要与相态结构有关。 |
| 关 键 词： | 聚醚酰亚胺 改性树脂 双马来酰亚胺 断裂韧性 相态结构 |
| 文章编号： | 1004-2849(2008)04-0006-04 |
| 修稿时间： | 2007年10月1日 |
Toughness of polyetherimide on copolymerie bismaleimide resin |
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| LIU Cang,LIU Qi-tao,LING Hui,NING Rong-chang,YE Bao-min.Toughness of polyetherimide on copolymerie bismaleimide resin[J].China Adhesives,2008,17(4):6-9. | |
| Authors: | LIU Cang LIU Qi-tao LING Hui NING Rong-chang YE Bao-min |
| Abstract: | Polyetherimide(PEI) could used to improve the brittleness of copolymeric bismaleimide resin. The results showed that PEI was an effective toughener of copolymeric bismaleimide resin. When PEI content respectively was 10 phr and 12.5 phr in copolymeric bismaleimide resin, the fracture toughness(GIC) increase to 650 J/m2 and 805 J/m2, and flexural strength decrease slight with retention in flexural modulus. The microstructures of the modified resin in system were examined by scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The toughening improvement was correlated to the morphology of the modified resin. |
| Keywords: | polyetherimide(PEI) modified resin bismaleimide(BMI) fracture toughness morphology |
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