合成材料老化与应用2024，Vol.53Issue(4)：32-35,72,5.
适用于低温声传感器的MEMS密封氟橡胶复合材料合成及性能研究
Synthesis and Properties of MEMS Composite Sealing Materials for Low Temperature Cryoacoustic Sensors
摘要
Abstract
With the development of electric power in low temperature areas such as high latitude and high altitude,a series of challenges have been presented to the sensor sealing technology.The performance of the sealing material depends on its recovery degree after tensile and compression deformation at this temperature.Low temperature will lead to the vitrification of the sealing ring material,thus affecting the service life of the sensor.Fluorine containing materials have excellent wear resistance and corrosion resistance,and are widely used in the preparation of various seals and insulating materials.However,they also face the problem of performance degradation under low temperature environment.In this work,a modified nano titanium based material DA-NH2-MIL-125(Ti)was synthesized by grafting alkyl long chain onto the outer surface of metal organic skeleton material.The composite sealing material was prepared by solution blending with fluororubber as the polymer matrix and DA-NH2-MIL-125(Ti)as the functional filler.Benefiting from the low polarity of alkyl long chain on the outer surface of NH2-MIL-125(Ti)particles,the compatibility between nano metal organic skeleton particles and fluororubber matrix is improved,and a fluororubber composite with high doping amount is obtained.When the doping amount of DA-NH2-MIL-125(Ti)was 20％,the tensile strength of the composite material can reach 19.1 MPa,and the glass transition temperature was reduced from-22 ℃ to-31 ℃,improving the low temperature resistance of fluororubber.关键词
氟橡胶/金属有机骨架材料/高掺杂/耐低温/密封Key words
fluorine rubber/metal organic skeleton material/highly doped/low temperature resistant/seal分类
化学化工引用本文复制引用
郭洪武,王乾力,刘卫明,李波平..适用于低温声传感器的MEMS密封氟橡胶复合材料合成及性能研究[J].合成材料老化与应用,2024,53(4):32-35,72,5.基金项目
国网内蒙古东部电力有限公司科技项目(52661021N001). （52661021N001）
