• 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 >Surface grafting of carbon fibers with artificial silver-nanoparticle-decorated graphene oxide for high-speed electrical actuation of shape-memory polymers
【24h】

Surface grafting of carbon fibers with artificial silver-nanoparticle-decorated graphene oxide for high-speed electrical actuation of shape-memory polymers

机译：碳纤维与人造银-纳米粒子修饰的氧化石墨烯的表面接枝，用于高速电驱动形状记忆聚合物

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

Poor heat conduction in the interface between the carbon fiber and polymer matrix is a problem in the actuation of shape-memory polymer (SMP) composites by Joule heating. In this study, we investigated the effectiveness of grafting silver-nanoparticle-decorated graphene oxide (GO) onto carbon fibers to improve the electrothermal properties and Joule-heating-activated shape recovery of SMP composites. Self-assembled GO was grafted onto carbon fibers to enhance the bonding of the carbon fibers with the polymeric matrix via van der Waal's forces and covalent crosslinking, respectively. Silver nanoparticles were further self-assembled and deposited to decorate the GO assembly, which was used to decrease the thermal dissimilarity and facilitate heat transfer from the carbon fiber to the polymer matrix. The carbon fiber was incorporated with SMP to achieve the shape recovery induced by Joule heating. We found that the silver-nanoparticle-decorated GO helped us achieve a more uniform temperature distribution in the SMP composites compared to those without decoration. Furthermore, the shape-recovery behavior and temperature profile during the Joule heating of the SMP composites were characterized and compared. A unique synergistic effect of the carbon fibers and silver-nanoparticle-decorated GO was achieved to enhance the heat transfer and a higher speed of actuation. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41673.
机译：碳纤维与聚合物基体之间的界面中导热不良，是通过焦耳热来驱动形状记忆聚合物（SMP）复合材料的一个问题。在这项研究中，我们研究了将纳米银修饰的氧化石墨烯（GO）接枝到碳纤维上以改善SMP复合材料的电热性能和焦耳热活化形状恢复的有效性。将自组装的GO接枝到碳纤维上，分别通过范德华力和共价交联来增强碳纤维与聚合物基体的结合。银纳米颗粒进一步自组装并沉积以装饰GO组件，该组件用于减少热不相似性并促进热量从碳纤维传递到聚合物基体。将碳纤维与SMP结合在一起，以实现通过焦耳加热引起的形状恢复。我们发现，用银纳米颗粒修饰的GO可以使SMP复合材料的温度分布比没有装饰的复合材料更均匀。此外，表征并比较了SMP复合材料在焦耳加热过程中的形状恢复行为和温度曲线。碳纤维和银纳米颗粒修饰的GO具有独特的协同作用，可以增强热传递和更高的驱动速度。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41673。

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