| 超硬材料磨具用烯丙基化酚醛改性双马来酰亚胺树脂的研究 |
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| 引用本文： | 郑红飞,李志宏,朱玉梅.超硬材料磨具用烯丙基化酚醛改性双马来酰亚胺树脂的研究[J].中国化学工程学报,2007,15(2):302-304. |
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| 作者姓名： | 郑红飞 李志宏 朱玉梅 |
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| 作者单位： | [1]Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Tianjin 300072, China [2]The 41th Institute of No.6 Academy of China Aerospace Science ＆ Technology Corporation, Hohhot 010010, China |
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| 摘 要： | A novel thermosetting resin system for superabrasives based on novolak and bismaleimide （BMI） was developed. The novolak resin was allylated and then copolymerized with BMI. The structure of allyl novolak and reaction mechanism were analyzed by FFIR. Thermal and mechanical properties were characterized by using com- prehensive thermal analyzer （DSC-TG） and strength tester, respectively. The results showed that high molecular weight of novolak was advantageous for heat-resistance, but was unfavorable for the bending strength. High allyl content improved the heat-resistance but lowered the bending strength. When the molecular weight of novolak was 450 and allyl content was 50%, the best resin system with good heat-resistance and bending strength was obtained. It was suitable for the manufacturing of superabrasive tools.
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| 关 键 词： | 烯丙基化线型酚醛树脂 化学改性 双马来酰亚胺树脂 超硬材料磨具 应用 |
| 收稿时间： | 15 May 2006 |
| 修稿时间： | 2006-05-152007-01-25 |
Bismaleimide modified by allyl novolak for superabrasives |
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| ZHENGHongfei,LIZhihong,ZHUYumei.Bismaleimide modified by allyl novolak for superabrasives[J].Chinese Journal of Chemical Engineering,2007,15(2):302-304. |
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| Authors: | ZHENGHongfei LIZhihong ZHUYumei |
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| Affiliation: | aKey Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Tianjin 300072, China;bThe 41th Institute of No.6 Academy of China Aerospace Science & Technology Corporation, Hohhot 010010, China |
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| Abstract: | A novel thermosetting resin system for superabrasives based on novolak and bismaleimide (BMI) was developed.The novolak resin was allylated and then copolymerized with BMI.The structure of allyl novolak and reaction mechanism were analyzed by FTIR.Thermal and mechanical properties were characterized by using comprehensive thermal analyzer (DSC-TG) and strength tester,respectively.The results showed that high molecular weight of novolak was advantageous for heat-resistance,but was unfavorable for the bending strength.High allyl content improved the heat-resistance but lowered the bending strength.When the molecular weight of novolak was 450 and allyl content was 50%,the best resin system with good heat-resistance and bending strength was obtained.It was suitable for the manufacturing of superabrasive tools. |
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| Keywords: | allyl novolak bismaleimide superabrasive |
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