多功能有机硅增粘剂的合成及应用  

Synthesis and Application of Multifunctional Silicone Tackifier

作　　者：罗洋 霍延平[1] 梁亮[1] 岳胜武 方小明 LUO Yang;HUO Yan-ping;LIANG Lang;YUE Sheng-wu;FANG Xiao-ming(Guangdong University of Technolooy,Guangzhou 510000,Guangdong;Shenzhen Kanglibang Company,Shenzhen 518000,Guangdong)

机构地区：[1]广东工业大学轻工化工学院,广州510000 [2]深圳市康利邦科技有限公司,广东深圳518000

出　　处：《有机硅材料》2019年第5期365-370,共6页Silicone Material

摘　　要：以四甲基环四硅氧烷(D4H)、八甲基环四硅氧烷(D4)、六甲基二硅氧烷(MM)、乙烯基三甲氧基硅烷和烯丙基缩水甘油醚为原料,合成了含环氧基和烷氧基的有机硅增粘剂PHMS-12,将其用于加成型液体硅橡胶。并对该增粘剂进行了结构表征,考察了PHMS-12用量对加成型液体硅橡胶的黏度、硬度、硫化特性以及对各种基材粘接性能的影响。结果表明:当PHMS-12用量为0.8%时,加成型液体硅橡胶与聚对苯二甲酸乙二醇酯(PET)、聚酰亚胺(PI)、不锈钢、铜、铝等基材的粘接良好,此时硅橡胶的拉伸强度为7.3 MPa,拉断伸长率为400%,撕裂强度为30.5 kN/m,邵尔A硬度为61度,焦烧时间(t10)和正硫化时间(t90)分别为34 s、86 s。A silicone tackifier PHMS-12 with epoxy and alkoxy functional groups for the addition-cure liquid silicone rubber(LSR)was prepared,with tetramethylcyclotetrasiloxane(D4H),octamethylcyclotetrasiloxane(D4),hexamethyldisiloxane(MM),vinyl trimethoxysilane,and allyl glycidyl ether as the raw materials.Then the microstructure of the tackifier was characterized.The effects of the amount of PHMS-12 on the viscosity,the hardness,curing characteristics of the liquid silicone rubber,and adhesion properties on the various substrates were investigated.Results show that when the amount of PHMS-12 is 0.8%,the addition-cure LSR is well bonded to polyethylene terephthalate(PET),polyimide(PI),stainless steel,copper,aluminium and other substrates.The silicone rubber has the tensile strength of 7.3 MPa,the elongation at break of400%,the tear strength of 30.5 kN/m,Shore A hardness of 61,and the scorch time t10 and the positive curing time t90 is 34 s and 86 s,respectively.

关 键 词：增粘剂 环氧基 烷氧基 加成型液体硅橡胶 

分 类 号：TQ333.93[化学工程—橡胶工业]