点击化学法制备四硅型偶联剂及性能研究  

Synthesis and properties of tetra-silane coupling agent via click chemistry

作　　者：刘海峰[1,2] 杨番[1] 张涛[1] 李天龙[1] 

机构地区：[1]广州中国科学院工业技术研究院,广东广州511458 [2]广州南沙资讯科技园有限公司博士后科研工作站,广东广州511458

出　　处：《现代化工》2015年第11期114-117,共4页Modern Chemical Industry

基　　金：广州市南沙区自主创新项目;南沙资讯科技园博士后科研补贴;广州市科技计划项目(2014J4100242)

摘　　要：通过巯基-烯烃的点击化学法将单硅型偶联剂单体巯丙基三甲氧基硅烷(MPS)与四乙烯基四甲基环四硅氧烷(Vi D4)反应获得四硅型偶联剂(Vi D4-MPS),反应产率为96%。同时,利用红外光谱、核磁共振光谱对产物结构进行了表征。热失重分析表明,Vi D4-MPS固化物耐热性能要优于MPS;在金属表面形成的Vi D4-MPS膜层耐冲击大于100 cm·kg,耐弯曲为1级,附着力为0级,硬度为3H,极化电阻为6 329.7Ω·cm2;盐雾加速腐蚀实验表明,Vi D4-MPS防护性能明显优于MPS,在用于铝片的防护时可耐1 000 h盐雾腐蚀。Tetra-silane coupling agent （ViD4-MPS） is synthesized with the yield of 96% by reacting 3- mercaptopropyltrimethoxysilane （ MPS ） with tetravinyhetramethycyclotetrasiloxane （ ViD4 ）. The structure of reaction product ViD4-MPS is confirmed by FT-IR and 1HNMR. Thermogravimetric analysis shows that the cured ViD4-MPS has better heat resistance than MPS. The cured ViD4-MPS layer on iron sheet can withstand more than 100 cmkg impact and level 1 bending. Moreover, its adhesion and hardness grade are 0 and 3, respectively. The polarization resistance of the layer is 6 329. 7 Ω/cm2. Salt spray accelerated corrosion tests shows that the protective performance of ViD4-MPS is better than that of MPS. Particularly, the ViD4-MPS layer on aluminum sheet can resist 1 000 hours salt spray test.

关 键 词：硅烷偶联剂 四乙烯基四甲基环四硅氧烷 点击化学 极化曲线 盐雾试验 

分 类 号：TQ314[化学工程—高聚物工业] O644.14[理学—物理化学]