基于微纳米填料导热改性复合材料点阵夹芯结构的力-热特性

项目名称： 基于微纳米填料导热改性复合材料点阵夹芯结构的力-热特性

项目编号： No.11502031

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 高亮

作者单位： 长春工业大学

项目金额： 20万元

中文摘要： 减轻重量、节省体积、发展多功能结构是航空航天领域的迫切需求，作为集材料、结构和功能于一体的新型材料，复合材料点阵夹芯结构恰恰迎合了这一需求，但其薄弱的导热性能大大限制了其潜在的应用空间。本项目研究将采用不同微纳米填料对碳纤维增强树脂基复合材料进行导热改性，提出有效的热网络模型并揭示材料的导热机制；同时，研究填料对改性材料的界面行为和力学性能的影响机理，并探讨填料对点阵夹芯结构的力学特性和热传输特性的影响规律。基于上述分析，对填料改性的工艺方案和技术手段进行调整和优化，以获取相对优异的承载-热控一体化结构。本项目研究将为复合材料点阵夹芯结构多功能一体化的实现和工程应用提供坚实基础和技术储备。

中文关键词： 点阵夹芯结构；力学性能；热传输性能；导热强化

英文摘要： As a new generation material with careful consideration of material, structure and function, composite sandwich structure with lattice truss cores just satisfies the strong desires of weight loss, volume constraint and multifunctional integration in aerospace field. However, the low thermal conduction of composite greatly restrict the potential application space of its structure. In this project, various micro/nano fillers are employed to improve the thermal conductivity of carbon fiber reinforced resin matrix composite. An effective thermal network model is developed for the nanocomposite, followed by revealing its thermal conductive mechanism. Furthermore, the effects of the nano-fillers on mechanical properties and heat transfer characteristic of nanocomposite sandwich structure with lattice truss core are carried out, as well as the the effects of the nano-fillers on interfacial behavior and mechanical properties of nanocomposites. Based on the mentioned above, to adjust and optimize the process scheme and technological mean to obtain the excellent integrated structure of load bearing and thermal control. The project would provide the solid foundation and technical reserves for the multi-functional integration and engineering application of composite sandwich structure with lattice truss cores.

英文关键词： sandwich structure with lattice truss cores;mechanical properties;heat transfer performance;thermal conductivity enhancement