空天防御2024，Vol.7Issue(3)：79-85,7.
耐高温有机硅树脂示温涂层的制备
Preparation of High Temperature Resistant Silicone Resin Coating for Temperature Indication
摘要
Abstract
In recent years,the rapid development of China's aerospace industry has driven higher requirements for the temperature and distribution test of engine turbines,combustion chambers and other high temperature components,attracting widespread attention to thermo chromic paints.To address the temperature measurement challenges of high-temperature components such as aero-engine,it is necessary to further improve the upper limit of color change temperature and color display performance of temperature indicator paint.In this study,TEOS hybrid methylphenyl silicone resin(SR)was prepared by TEOS,diphenyl dimethoxy silane(DMDPS)and trimethylxy silane(TMPS).The flexibility of the resin was increased by adjusting the ratio of TEOS to DMDPS.A hybrid silicone resin with both toughness and high temperature resistance was produced by modifying the toughened SR with heptaisobutyl trisilane hydroxyl POSS that can cure at room temperature,retaining 82% of its weight at 500℃ .Pigments such as new carmine,tungsten trioxide,chromium trioxide,iron oxide,aluminum silicate were selected,along with zirconium powder and boron trioxide as high temperature fillers,and anhydrous ethanol as solvent.These were mixed and ground with the prepared high-temperature resistant silicone resin to produce a high temperature indicating paint.The effect and mechanism of color display at 400,500,800,900,1 000,1 150 and 1 300℃ were analyzed.The results show that the paint achieves excellent properties in technology,high temperature resistance and color display performance,and can be used to measure the temperature of high temperature parts.关键词
不可逆高温示温漆/正硅酸乙酯(TEOS)杂化甲基苯基有机硅树脂/多面体低聚倍半硅氧烷(POSS)改性/热致变色Key words
irreversible high temperature indicator paint/TEOS hybrid methyl phenyl silicone resin/POSS modification/thermochromism分类
化学化工引用本文复制引用
罗艳梅,刘江峰,窦怡彬,王文芳,刘陆广,许斌,钟正祥..耐高温有机硅树脂示温涂层的制备[J].空天防御,2024,7(3):79-85,7.基金项目
国家自然科学基金(51903065) （51903065）
中国航天科技集团有限公司上海航天科技创新基金(SAST2019-13) （SAST2019-13）
