• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Influence of diaminobenzoyl-functionalized multiwalled carbon nanotubes on the nonisothermal curing kinetics, dynamic mechanical properties, and thermal conductivity of epoxy-anhydride composites
【24h】

Influence of diaminobenzoyl-functionalized multiwalled carbon nanotubes on the nonisothermal curing kinetics, dynamic mechanical properties, and thermal conductivity of epoxy-anhydride composites

机译：二氨基苯甲酰基官能化的多壁碳纳米管对环氧酸酐复合材料非等温固化动力学，动态力学性能和导热系数的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To obtain advanced materials with a high thermal dissipation, the addition of multiwalled carbon nanotubes containing diverse functionality groups, that is, as-received multiwalled carbon nanotubes (AS-MWCNTs) and diaminobenzoyl multiwalled carbon nanotubes (DA-MWCNTs), to epoxy-anhydride composites was accomplished. According to nonisothermal differential scanning calorimetry analysis, the reactive functional groups present on the surfaces of the AS-MWCNTs and DA-MWCNTs accelerated the nucleophilic addition reaction of epoxy composites. Because of the difference in the reactivities of these functional groups toward epoxy groups, the distinction of fractional conversion and the reaction rate of the curing process were remarkably evident at the early stage. A suitable kinetic model was effectively elucidated with the Malek approach. The curing kinetics could best be described by a two-parameter autocatalytic model as a truncated Sestak-Berggren model. The DA-MWCNTs achieved effective load transfer and active heat conductive pathways; this resulted in good dynamic mechanical and thermal properties. As a result, the diglycidyl ether of bisphenol A/DA-MWCNTs constituted an effective system with enhanced heat dissipation of materials for electronic applications. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43567.
机译：为了获得具有高散热性的先进材料，可将含有多种官能团的多壁碳纳米管（即原样的多壁碳纳米管（AS-MWCNT）和二氨基苯甲酰基多壁碳纳米管（DA-MWCNT））添加到环氧酐中复合材料完成了。根据非等温差示扫描量热法分析，存在于AS-MWCNT和DA-MWCNT表面上的反应性官能团促进了环氧复合材料的亲核加成反应。由于这些官能团对环氧基的反应性不同，因此在早期阶段，分馏率和固化过程的反应速率的区别就非常明显。使用Malek方法可以有效地阐明合适的动力学模型。固化动力学最好用两参数自动催化模型描述为截短的Sestak-Berggren模型。 DA-MWCNTs实现了有效的载荷传递和主动的导热途径;这导致了良好的动态机械和热性能。结果，双酚A / DA-MWCNT的二缩水甘油醚构成了一种有效的系统，具有增强的电子应用材料的散热性。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43567。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号