天津工业大学学报2017，Vol.36Issue(4)：23-26,4.DOI:10.3969/j.issn.1671-024x.2017.04.005
三维五向石英/环氧复合材料的热传导性
Thermal conductivity of 3D five-directional braided quartz/epoxy composites
摘要
Abstract
In order to provide the necessary basis for the design and application of the 3D braided reinforced composites in heat conduction, quartz fiber and epoxy resin were used to prepare 3D five-directional quartz/epoxy composites, the thermal conductivity of composites were measured by transient plane source method. The effects of fiber vol-ume fraction, braiding angle and different yarn reduction methods on the axial and radial heat transfer properties of the composites were analyzed. The results show that the thermal conductivity of the 3D five-directional braided composites exhibits anisotropy along the axial and radial directions. Its axial thermal conductivity increases with fiber volume fraction increasing and braiding angle decreasing, its radial thermal conductivity increases with fiber volume fraction increasing and braiding angle increasing. At the same time, the yarn reduction can reduce the thermal conductivity of 3D braided composites. Compared with reducing yarn fineness and decentralized sub-traction, the impact of centralized subtraction for the thermal conductivity of composites is the most obvious, and the axial and radial thermal conductivity decrease 3.2%and 3.0%,respectively.关键词
三维编织/石英纤维/环氧复合材料/热传导性/各向异性/减纱方法Key words
3D braided/quartz fiber/epoxy composites/thermal conductivity/anisotropy/method of yarn reduction分类
通用工业技术引用本文复制引用
焦亚男,李媛琪..三维五向石英/环氧复合材料的热传导性[J].天津工业大学学报,2017,36(4):23-26,4.基金项目
天津市科技支撑计划重点项目(15ZDGX00340) （15ZDGX00340）
