氟硅树脂的制备及其性能研究

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英文篇名：The Preparation of Fluorosilicone Resin 作者：王利伟 ; 李辉 ; 李爱平 英文作者：Wang Liwei;Li Hui;Li Aiping;Shijiazhuang Paint Company; 关键词：氟硅树脂 ; 硅氧烷醇钠 ; 三氟丙基甲基环三硅氧烷 ; 乙烯基四环体 ; 乙烯基氟硅油 英文关键词：fluorosilicone;;sodium siloxane alcohol;;tri(fluoropropyl)methylcyclotrisiloxane;;Tetravinyl tetramethyl cyclo tetrasiloxane;;vinyl fluoride silicone oil 中文刊名：TLGY 英文刊名：Paint & Coatings Industry 机构：石家庄市油漆厂; 出版日期：2019-03-01 出版单位：涂料工业 年：2019 期：v.49;No.417 语种：中文; 页：TLGY201903010 页数：4 CN：03 ISSN：32-1154/TQ 分类号：43-46

摘要

以单体三氟丙基甲基环三硅氧烷(D_3F)、四甲基四乙烯基环四硅氧烷为原料,以平均相对分子质量为3 000、乙烯基摩尔分数为1 0%的乙烯基氟硅油作封端剂,以硅氧烷醇钠作催化剂,聚合成平均摩尔质量约8×10~5 g/mol、乙烯基含量0.5%的氟硅树脂。讨论了催化剂用量、反应温度及时间、原料中水分的含量、乙烯基含量和中和剂对氟硅树脂性能的影响。结果表明:采用高纯度D_3F,硅氧烷醇钠催化剂用量为0.4%,在(130±5)℃反应60 min制备出的氟硅树脂经硫化测试,其邵氏硬度为71,撕裂强度为31.5 kN/m,拉伸强度8.6 MPa,断裂伸长率404%,其结果表明符合市场使用要求。
        A fluorosilicone resin with the average molar mass approx.8×10~5 g/mol and the vinyl content 0.5% was prepared by using tri(fluoropropyl)methylcyclotrisiloxane(D_3F)and Tetravinyl tetramethyl cyclo tetrasiloxane as main materials,vinyl fluoride silicone oil as sealing agent, sodium siloxane alcohol as catalyst.The effects of catalyst content,reaction time and temperature,water content,vinyl content and neutralizing agent on the properties of fluorosilicone resin were investigated.The results showed that the flurorosilicone resin prepared by a reaction of high purity D_3F and sodium siloxane alcohol 0.4% at 130±5 ℃ for 60 min exhibited Shore hardness 71 HA,tear strength 31.5 KN/m,tensile strength of 8.6 MPa and elongation at break 404%,which met the market demand.

引文

[1]黄文润.热硫化硅橡胶[M].成都:四川科学技术出版社,2009.
    [2]来国桥,幸松民.有机硅产品合成工艺及应用[M].2版.北京:化学工业出版社,2010.
    [3]赵陈超,章基凯.硅橡胶及其应用[M].北京:化学工业出版社,2015.