| 环氧/聚砜共混体系粘弹特征研究 |
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| 引用本文： | 孙志杰,殷立新,亢雅君.环氧/聚砜共混体系粘弹特征研究[J].航空学报,2000,21(Z1):153-155. |
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| 作者姓名： | 孙志杰 殷立新 亢雅君 |
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| 作者单位： | 北京航空航天大学材料科学与工程系 北京 100083 |
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| 摘 要： | 采用 DMA,TBA和动态粘弹谱仪等试验手段研究了聚砜增韧环氧 -双氰双胺共混体系的粘弹性,实验中用斜削双悬臂梁 ( TDCB)试样测定共混体系断裂韧性 GIC,并阐述两者的相互关系,试验结果表明 :环氧 /聚砜体系形成的韧性聚砜连续相以网膜包覆环氧固化球粒的“网膜 -球粒”结构,是使体系具有特殊的粘弹性特征的原因,并最终获得高韧性和良好的综合性能
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| 关 键 词： | 复合材料 树脂基体 粘弹性 增韧 |
| 修稿时间： | 1999-06-03 |
STUDY ON THE VISCOELASTICITY CHARACTERISTICS OF EPOXY/POLYSULFONE BLENDS |
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| SUN Zhi-jie,YIN Li-xin,KANG Ya-jun.STUDY ON THE VISCOELASTICITY CHARACTERISTICS OF EPOXY/POLYSULFONE BLENDS[J].Acta Aeronautica et Astronautica Sinica,2000,21(Z1):153-155. |
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| Authors: | SUN Zhi-jie YIN Li-xin KANG Ya-jun |
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| Institution: | Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) |
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| Abstract: | Testing methods such as DMA, TBA and dynamic viscoelastometer were utilized to study the viscoelasticity of epoxy dicyandiamide blend toughened by polysulfone. TDCB samples were used to find out the value of G IC of the blend systems. Consequently, the relationship between G IC and viscoelasticity was clarified. The results verified that, in epoxy/polysulfone blends, the ductile polysulfone, as a continuous phase, covered cured epoxy particles and a "network film particles" structure was produced, which gave the blend system viscoelasticity and finally achieved toughness and good comprehensive properties. |
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| Keywords: | composites resin mat rix viscoelasticity toughening |
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