| 聚砜/环氧树脂体系的双连续相结构及其应变激励下的修复性能 |
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| 引用本文： | 杜庆丽,李刚,张晨,杜中杰,励杭泉,刘和平. 聚砜/环氧树脂体系的双连续相结构及其应变激励下的修复性能[J]. 高分子材料科学与工程, 2008, 24(4): 58-61 |
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| 作者姓名： | 杜庆丽 李刚 张晨 杜中杰 励杭泉 刘和平 |
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| 作者单位： | 北京化工大学新型高分子材料的制备与加工北京市重点实验室,北京,100029;中国兵器工业第203研究所,陕西,西安,710065 |
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| 摘 要： | 研究了聚砜含量为10%的E-51/PSF/MTHPA/2,4-EMI共混体系在等温固化时双连续相相结构的演变过程及在不同应变下的自修复性能。扫描电子显微镜(SEM)和倒置相差显微镜照片验证了双连续相相结构的演变过程。倒置相差显微镜测试的结果表明,90℃固化3 h后聚砜/环氧固化体系伸长率较高,回弹及应力松弛性能较好,后固化样品的自修复性能较理想。
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| 关 键 词： | 环氧树脂 聚砜 双连续相 自修复 |
| 文章编号： | 1000-7555(2008)04-0058-04 |
| 修稿时间： | 2006-11-08 |
Strain Induced Self-Healing Effect of Polysulfone/ Epoxy Blends with Bicontinuous Phase Morphologies |
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| DU Qing-li,LI Gang,ZHANG Chen,DU Zhong-jie,LI Hang-quan,LIU Heping. Strain Induced Self-Healing Effect of Polysulfone/ Epoxy Blends with Bicontinuous Phase Morphologies[J]. Polymer Materials Science & Engineering, 2008, 24(4): 58-61 |
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| Authors: | DU Qing-li LI Gang ZHANG Chen DU Zhong-jie LI Hang-quan LIU Heping |
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| Affiliation: | 1.The Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology,Beijing 100029,China;2.No.203 Research Institute of China Ordnance Industries,Xi’an 710065,China) |
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| Abstract: | The self-healing effect and development of bicontinuous phase morphologies in a blend of polysulfone(PSF)/epoxy resin system were studied.The epoxy was based on diglycidylether of bisphenol A(DGEBA) and the curing agent was methyl tetrahydrophthalic anhydride(MTHPA).2-Ethyl-4-methylimidazole(2,4-EMI) was used as accelerator.The development of bicontinuous phase morphologies and its self-healing effect were analyzed by inverted phase contrast microscope and scanning electron microscope(SEM).The results indicate that the polysulfone/epoxy blends cured about 3 h at 90 ℃ have relative higher elongation,resilience and stress relaxation and the self-healing effect of postcure sample is also desirable. |
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| Keywords: | epoxy resins polysulfone bicontinuous phase morphologies self-healing effect |
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