首页> 外文期刊>Journal of Applied Polymer Science >Discontinuous carbon fiber/polyamide composites with microencapsulated paraffin for thermal energy storage
【24h】

Discontinuous carbon fiber/polyamide composites with microencapsulated paraffin for thermal energy storage

机译:具有微囊化石蜡的不连续碳纤维/聚酰胺复合材料,用于热储能

获取原文
获取原文并翻译 | 示例
           

摘要

This work focuses on the development of multifunctional thermoplastic composites with thermal energy storage capability. A polyamide 12 (PA12) matrix was filled with a phase change material (PCM), constituted by paraffin microcapsules (T-melt = 43 degrees C), and reinforced with carbon fibers (CFs) of two different lengths (chopped/CF "long"[CFL] and milled/CF "short" [CFS]). DSC tests showed that the melting/crystallization enthalpy values increase with the PCM weight fraction up to 60 J/g. The enthalpy was 41-94% of the expected value and decreased with an increase in the fiber content, because the capsules were damaged by the increasing viscosity and shear stresses during compounding. Long CFs increased the elastic modulus (+316%), tensile strength (+26%), and thermal conductivity (+54%) with respect to neat PA12. Thermal imaging tests evidenced a slower cooling for the samples containing PCM, and once again the CFS-containing samples outperformed those with CFL, due to the higher effective PCM content. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47408.
机译:今年工作重点放在多功能热塑性复合材料的开发与热能储存能力。聚酰胺12(PA12)基质填充有相变材料(PCM),由石蜡的微胶囊(T-熔融= 43℃)构成,并用碳纤维增强两种不同长度(切碎/ CF“的(CFS)长“[CFL]和研磨/ CF “短”[CFS])。 DSC试验表明,该熔化/结晶焓值与PCM重量分数高达60焦耳/克增加。的焓为预期值的41-94%,并且与增加的纤维含量降低,这是因为胶囊通过混配过程中的粘度增加和剪切应力损坏。长的CF相对于纯的PA12增加了弹性模量(+ 316%),拉伸强度(+ 26%),和热导率(+ 54%)。热成像测试证明较慢的冷却用于容纳PCM的样品中,并再次将含CFS-样品优于那些具有CFL,由于较高的有效PCM内容。 (c)2018 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2019年,136,47408。

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