| 环氧改性氰酸酯树脂研究 |
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| 引用本文： | 张增平,梁国正,任鹏刚,卢婷利,王结良.环氧改性氰酸酯树脂研究[J].航空材料学报,2006,26(4):100-104. |
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| 作者姓名： | 张增平 梁国正 任鹏刚 卢婷利 王结良 |
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| 作者单位： | 西北工业大学,理学院应用化学系,西安,710072 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 分别采用E20和E51环氧树脂与双酚A型二氰酸酯(BADCy)共聚来改善氰酸酯树脂的力学性能.用DSC,FTIR研究了两种不同分子量的环氧改性氰酸酯体系的反应性,发现E20和E51对BADCy的固化反应均有催化作用,但E20的催化作用强于E51.断面SEM表明,经E20和E51改性的BADCy断口处存在大量的韧涡.但改性体系的热变形温度(HDT)和吸水率有所下降,当配比(质量)相同时,E51/BADCy体系比E20/BADCy体系具有更高的HDT和较小的吸水率.
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| 关 键 词： | 双酚A型二氰酸酯 环氧E20 环氧E51 共聚 |
| 文章编号： | 1005-5053(2006)04-0100-04 |
| 修稿时间： | 2004年12月1日 |
Studies on Epoxies Resins Modified Cyanater |
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| ZHANG Zeng-ping,LIANG Guo-zheng,REN Peng-gang,LU Ting-li,WANG Jie-liang.Studies on Epoxies Resins Modified Cyanater[J].Journal of Aeronautical Materials,2006,26(4):100-104. |
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| Authors: | ZHANG Zeng-ping LIANG Guo-zheng REN Peng-gang LU Ting-li WANG Jie-liang |
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| Abstract: | In order to improve the mechanical properties of cyanate ester resin,Bisphenol-A dicyanate(BADCy) was copolymerized with E20 and E51,respectively.DSC and FTIR studies showed that both E20 and E51 epoxies were catalytic for the curing reaction of BADCy while E20 epoxy had stronger catalytic effect than E51.By means of SEM,large amount of tough whorls and break were observed in the fractures of BADCy modified by E20 and E51.It turns out that heat deflection temperature(HDT) and moisture absorption of the modified systems decreased with the increasing of epoxy content and E51 epoxy modified BADCy system displayed relatively higher HDT and lower moisture absorption than that of E20 epoxy modified one. |
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| Keywords: | bisphenol-A dicyanate(BADCy) epoxy resin E51 epoxy resin E20 copolymerization |
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