单组分脱醇型硅酮胶制备及其固化性能的研究  

Study on the Preparation and Performance of One Component Dealcoholized Silicone Adhesive

作　　者：徐尚仲 陈炳耀 全文高 杨永强 XU Shangzhong;CHEN Bingyao;QUAN Wengao;YANG Yongqiang(Guangdong Sanvo Holdings Ltd.,Zhongshan 528325,China)

机构地区：[1]广东三和控股有限公司,广东中山528325

出　　处：《化学与粘合》2023年第5期473-475,479,共4页Chemistry and Adhesion

摘　　要：优选α,ω-二羟基聚二甲基硅氧烷为基胶(107胶),以纳米碳酸钙为填料,适配交联剂、偶联剂、催化剂等功能助剂,旨在研究一款硫化速度快、固化深度理想的脱醇型工程硅酮胶,以提升施工、装饰效率。试验中逐一分析了107基胶、交联剂、偶联剂以及固化促进剂对硅酮胶固化性能的影响。试验发现,向100份黏度60000 m Pa·s的107基胶中,搭配加入4份交联剂,0.4份固化促进剂、以及少量双氨基偶联剂,以此配方制备的单组分脱醇型室温硫化硅酮胶综合性能优异,其表干时间为12 min,24 h固化深度为2.2 mm,完全硫化时间为48 h,基本满足电子电器高效施工需求。It is preferable to useα,ω-dihydroxy polydimethylsiloxane as the base glue(107 glue),with nano-calcium carbonate as the filler and functional additives such as cross-linking agent,coupling agent and catalyst to develop a kind of dealcoholized engineering silicone adhesive with the charactistics of fast curing and ideal curing depth to improve the construction and decoration efficiency.In the test,the effects of 107 base glue,cross-linking agent,coupling agent and curing accelerator on the curing properties of silicone adhesive are analyzed one by one.The test finds that when 4 portions of crosslinking agent,0.4 portions of curing accelerator and few bis-amino coupling agent are added to 100 portions of 107 base glue with a viscosity of 60000 mPa·S,the prepared one-component dealcoholized RTV silicone adhesive will hae excellent comprehensive properties.Its surface drying time is 12 min,the curing depth in 24 h is 2.2 mm,and the complete curing time is 48 h,which can basically meet the needs of efficient construction of electronic appliances.

关 键 词：快速固化 脱醇型硅酮胶 

分 类 号：TQ437.6[化学工程]