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| Effect of metal oxide on the heat resistance property of RTV fluorosilicone sealant |
| GAO Yuanfeng, BAO Chuanlei, XU Zhenkun, ZHENG Ziqiang, WU Songhua |
| Institute of Rubber and Sealing, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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Abstract: Dehydrogenated curing fluorosilicone sealant is prepared at room temperature by mixing fluorosilicone liquid rubber, fumed silica, and metal oxide. Then heat resistance performance is investigated by thermal aging experiment at different temperatures (250 ℃ and 300 ℃). It is revealed that the heat resistance performance of rare earth metal oxide based fluorosilicone sealant is better than that of iron oxide at 250 ℃. However, when the temperature goes up to 300℃, the iron oxide based fluorosilicone sealant's heat resistance performance is better than the rare earth metal oxide's. Concerning the universality and economy of sealant, the iron oxide based fluorosilicone sealant possesses a wider application area.
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Received: 25 May 2020
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[1] 杨中文, 吴轩. 单组分室温硫化氟硅橡胶胶粘剂/密封剂的研究[J]. 中国胶粘剂, 2007, 16(10):23-26.
[2] 杨亚飞, 于美超, 章谏正, 等. 飞机油箱密封剂耐介质性能研究[J]. 粘接, 2017, 3:47-49.
[3] 齐士成, 王景鹤. 缩合脱氢有机硅密封剂耐密闭状态热降解研究[J]. 粘接, 2005, 26(10):30-31.
[4] 刘嘉, 苏正涛, 栗付平. 航空橡胶与密封材料[M]. 北京:国防工业出版社, 2011.
[5] 王亮, 陈双俊, 张军, 等. 硅橡胶/铁氧体复合材料耐热空气老化性的研究[J]. 特种橡胶制品, 2009, 30(1):31-35.
[6] 刘光勋, 刘梅, 孙全吉, 等. 1,1-双(二苯基膦)二茂铁对RTV-2硅橡胶耐热性能的影响[J]. 有机硅材料, 2014, 28(4):281-284.
[7] 彭亚岚, 苏正涛, 焦冬生, 等. 自制纳米氧化铈对硅橡胶热老化性能的影响[J]. 特种橡胶制品, 2005, 26(5):15-17.
[8] 杨茜, 方庆红, 王娜, 等. 氧化铈对双组份室温硫化硅橡胶耐热性能的影响[J]. 合成橡胶工业, 2012, 35(4):304-307.
[9] 葛铁军, 张瑾. 耐高温硅橡胶的配方研究[J]. 材料科学与工艺, 2018, 26(3):80-83.
[10] 公建辉, 丘泰, 沈春英. 羰基铁粉/硅橡胶复合体系的物理性能研究[J]. 材料科学与工程学报, 2006, 24(5):718-721.
[11] 王辰, 苏正涛. 石墨烯对乙基硅橡胶热老化性能的影响[J]. 有机硅材料, 2019, 33(6):213-217.
[12] 吕虎, 孙东洲, 孔宪志, 等. 室温固化长期耐300℃的高强度硅橡胶型胶黏剂的研制[J]. 化学与粘合, 2017, 39(3):180-185.
[13] 秦蓬波, 索军营, 刘刚, 等. 氟硅密封剂热老化性能研究[J]. 中国胶粘剂, 2011, 20(5):55-58.
[14] 曲艳斌, 方辉. 耐热阻燃硅橡胶的研制[J]. 有机硅材料, 2006, 20(3):111-113. |
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2021, Vol. 39 
