丙烯酸酯乳液胶粘剂的合成及性能研究  

Study on synthesis and properties of acrylate emulsion adhesive

作　　者：周风[1] 郑水蓉[1,2] 汪前莉[1] 刘小娟[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710072 [2]西北工业大学-华东理工大学高速铁路新材料联合研究所,陕西西安710129

出　　处：《中国胶粘剂》2013年第8期45-48,共4页China Adhesives

摘　　要：以丙烯酸丁酯(BA)为软单体、甲基丙烯酸甲酯(MMA)为硬单体、丙烯酸(AA)为功能单体、过硫酸铵(APS)为引发剂、γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)为改性剂和十二烷基硫酸钠(SDS)/烷基酚聚氧乙烯醚(OP-10)为阴/非离子型复合乳化剂,采用半连续种子乳液聚合法合成了丙烯酸酯乳液胶粘剂;然后采用单因素试验法优选出制备该胶粘剂的最优方案。研究结果表明:当m(BA)∶m(MMA)=4∶1、w(APS)=0.4%～0.5%、w(AA)=2%～3%和w(KH-570)=1.0%(均相对于共聚单体总质量而言)时,相应胶粘剂的粘接强度(剥离强度为123.4 N/m、拉伸剪切强度为0.49 MPa)相对最大、耐水性(吸水率为18.91%)相对较好。With butyl acrylate （BA） as soft monomer, methyl methacrylate （MMA） as hard monomer,acrylic acid （AA） as functional monomer, ammonium persulfate （APS） as initiator, T- methacryloxypropyltri methoxysilane （KH-570） as modifier, and sodium dodecyl sulfate （SDS）/alkyl phenol polyoxyethylene ether （OP- 10） as anion/nonionic compound emulsifier,an acrylate emulsion adhesive was synthesized by semi-continuous seedemulsion polymerization. Then,an optimal project of preparing this adhesive was preferred by single-factor experiment. The research results showed that the corresponding adhesive had the relatively maximal bonding strength（peeling strength at 123.4 N/m ,tensile shear strength at 0.49 MPa）, and the relatively better water resistance（water absorption at 18.91%） when mass ratio of m（BA） ：m（MMA） was 4：1 ,mass fractions of APS,AA and KH-570 were 0.4%-0.5%,2%-3% and 1.0% respectively in total comonomers.

关 键 词：丙烯酸酯乳液 胶粘剂 半连续种子乳液聚合 硅烷偶联剂 

分 类 号：TQ433.436[化学工程]