一种航天器用外热防护涂层材料研究  

Study on a external thermal protection coating material for spacecraft

作　　者：王百亚[1] 王秀云[1] 张炜[1] 

机构地区：[1]中国航天科技集团公司四院四十三所,西安710025

出　　处：《固体火箭技术》2005年第3期216-218,227,共4页Journal of Solid Rocket Technology

摘　　要：研制了一种由环氧改性有机硅树脂、聚酰胺类固化剂为基体,以隔热及耐热填料为添加剂的室温固化耐高温外热防护涂料体系;该外热防护涂层材料的拉伸强度3.15MPa,断裂伸长率26%;热导率0.271W/(m.K),比热容2.689 J/(g.K),而且具有优良的隔热性能、耐热性能以及良好的附着力。该涂层材料可用于T700/4319复合材料壳体表面的外防护,并可在350℃温度条件下短期使用。A kind of external thermal protection coating material which takes epoxy-modified organic silicone resin and polyamide curing agent as matrix, and thermal-insulating and beat-resisting fillers as additives was developed. The material with high temperature resistant property was cured at room temperature. Tensile strength of the coating material is up to 3. 15MPa, elongation-tobreak 26%, thermal conductivity coefficient 0. 271W/（ m· K）, and specific heat capacity 2.689J/（g· K）. At the same time, the coating material possesses better heat-insulating property, heat-resisting property and excellent adhesion. The coating material can be used for the external thermal protection of T700/4319 composite material case surface, and it can be used at the temperature of 350%; for a short period.

关 键 词：外热防护 涂层材料 环氧改性有机硅树脂 

分 类 号：V258[一般工业技术—材料科学与工程]