硅橡胶防热涂层隔热与耐热性能研究  

Study on thermal insulation and heat resistance of anti heat coating based on silicone rubber

作　　者：黄海龙[1,2] 程靖萱 梁夏敏 李凤宇 苏高攀 HUANG Hai-long;CHENG Jing-xuan;LIANG Xia-min;LI Feng-yu;SU Gao-pan(Hubei Institute of Aerospace Chemotechnology,Xiangyang 441003,China;Science and Technology on Aerospace Chemical Power Laboratory,Xiangyang 441003,China;Laboratory of Emergency Safety and Rescue Teconology,Xiangyang 441003,China)

机构地区：[1]湖北航天化学技术研究所,湖北襄阳441003 [2]航天化学动力技术重点实验室,湖北襄阳441003 [3]应急救生与安全防护湖北省重点实验室,湖北襄阳441003

出　　处：《化学工程师》2022年第5期91-95,共5页Chemical Engineer

摘　　要：本文系统研究了自制DMGQ-2硅橡胶防热涂层的热物理性能。结果表明,固化剂用量对热化学参数无显著影响,热化学参数随温度的变化而变化,通过拟合方程,可以对特定温度下DMGQ-2涂层的导热系数λ、比热容Cp、热扩散系数α进行预估。采用有限元分析,相比于X涂层,DMGQ-2涂层的隔热性能更优。TGA分析了DMGQ-2涂层的热分解温度。200℃热空气老化性能表明,DMGQ-2涂层具有较好的抗热空气老化性能。In this paper,the thermophysical properties of self-made DMGQ-2 silicone rubber anti heat coating were systematically investigated.The results showed that thermochemical parameters of the coating didn’t change with the amount of the curing agent,but with the temperature.The thermal thermochemical parameters of DMGQ-2coating at a specific temperature,including Thermal conductivity(λ)、Specific heat capacity(C_(p))and thermal diffusion coefficient(α)can be determined by fitting the equation of λ、C_(p) and α.Compared with X coating,DMGQ-2coating showed better thermal insulatin performance through the finite element analysis.The thermal decomposition temperature of DMGQ-2 coating was analyzed by TGA.The thermal aging property at 200℃ showed that DMGQ-2coating has good thermal aging resistance.

关 键 词：防热涂层 硅橡胶 热物理性能 

分 类 号：TJ763[兵器科学与技术—武器系统与运用工程]