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化工新型材料  2019, Vol. 47 Issue (11): 77-82    
  新材料与新技术 本期目录 | 过刊浏览 | 高级检索 |
氰酸酯树脂/γ-巯丙基三甲氧基硅烷改性碳化硅复合材料的制备及性能研究
姚焕英1, 祝保林1*, 周胜波2
1.渭南师范学院化学与材料学院,渭南714099;
2.广西交通科学研究院有限公司结构与材料重点实验室,南宁530007
Preparation and property of CE/KH-590 modified SiC composite
Yao Huanying1, Zhu Baolin1, Zhou Shengbo2
1.College of Chemistry and Materials Chemistry Science,Weinan Normal University,Weinan 714099;
2.Guangxi Transportation Research & Consulting Co.,Ltd.,Key Laboratory of Road Structure and Materials of Guangxi,Nanning 530007
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摘要 采用γ-巯丙基三甲氧基硅烷偶联剂(KH-590)对碳化硅粉体(SiC)进行了表面改性,制备了氰酸酯树脂/碳化硅(CE/SiC)复合材料。研究了SiC含量对复合材料的静态力学性能、电绝缘性能、导热性能和摩擦性能的影响,以扫描电子显微镜对复合材料的断面形貌进行了观察。结果表明,少量SiC粉体的引入能有效改善复合材料的静态力学性能、耐磨性能,且复合材料仍保持良好的电绝缘性能。当SiC的质量分数在6%~8%时,复合材料的冲击强度、弯曲强度相对于纯CE分别提高了89.6%和67.6%;当SiC的质量分数在8%时,复合材料的导热系数增大4.6倍,摩擦系数比纯CE降低了43.5%,耐磨性相对于纯CE提高77.5%。
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姚焕英
祝保林
周胜波
关键词:  氰酸酯树脂  碳化硅粉体  力学性能  导热系数  介电常数  耐摩擦性能    
Abstract: γ-mercaptopropyl trimethoxysilane (KH-590) powder was modified by silane coupling agent KH-590 and a series of cyanate ester resin composites containing the modified SiC were prepared.The effects of SiC content on the static mechanical properties,electrical insulation and friction properties of the composites were investigated.The cross-section morphology of the materials was observed by scanning electron microscope.The results shown that the introduction of a small amount of SiC powder can effectively improve the static mechanical properties and wear resistance of the cyanate ester composite,and the composite still maintained good electrical insulation properties.When the mass fraction of SiC was at 6%~8%,the impact strength and bending strength of the composites were increased by 89.6% and 67.6%,respectively,compared with pure cyanate ester resin (CE).When the mass fraction of SiC was 8%,the friction coefficient of the composite was 43.5% lower than that of pure CE,and the wear resistance of the composite was increased by 77.5% for pure CE.
Key words:  cyanate ester resin(CE)    silicon carbide(SiC)    mechanical property    thermal conductivity    dielectric constant    friction resistance
收稿日期:  2018-06-22                出版日期:  2019-11-20      发布日期:  2019-12-04      期的出版日期:  2019-11-20
基金资助: 广西科技厅重点研发计划项目(桂科AB17292032);西部军民融合技术产业发展研究院项目(18JMR53);渭南师范学院重点项目(17YKF03)
通讯作者:  祝保林(1975-),男,硕士,教授,主要从事复合材料和功能材料的研究。   
作者简介:  姚焕英(1962-),女,副教授,主要从事复合材料和功能材料的研究。
引用本文:    
姚焕英, 祝保林, 周胜波. 氰酸酯树脂/γ-巯丙基三甲氧基硅烷改性碳化硅复合材料的制备及性能研究[J]. 化工新型材料, 2019, 47(11): 77-82.
Yao Huanying, Zhu Baolin, Zhou Shengbo. Preparation and property of CE/KH-590 modified SiC composite. New Chemical Materials, 2019, 47(11): 77-82.
链接本文:  
https://www.hgxx.org/CN/  或          https://www.hgxx.org/CN/Y2019/V47/I11/77
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