聚丙烯酸酯涂料印花黏合剂的合成

Synthesis of polyacrylate pigment printing adhesive

以BA（丙烯酸丁酯）为软单体、MMA（甲基丙烯酸甲酯）为硬单体、AA（丙烯酸）为功能单体、APS（过硫酸铵）为引发剂、SDS（十二烷基硫酸钠）/NP-40（壬基酚聚氧乙烯醚）为阴/非离子型复合乳化剂,采用预乳化半连续乳液聚合法合成了聚丙烯酸酯类涂料印花黏合剂。研究结果表明：当75~80℃聚合3 h、85℃保温1 h、m（MMA）∶m（BA）=25∶72、w（APS）=0.8%、w（复合乳化剂）=3%（均相对于单体总质量而言）且m（SDS）∶m（NP-40）=1∶（1.5~2.0）时,涂料印花黏合剂乳液的综合性能相对最好。

With BA （butyl acrylate） as soft monomer, MMA （methyl methacrylate） as hard monomer, AA （acrylic acid） as functional monomer, APS （ammonium persulfate） as initiator and SDS （sodium dodecyl sulfate）/NP-40 （nonylphenol polyoxyethylene ether） as anion/nonionic composite emulsifier, a polyacrylate pigment printing adhesive was synthesized by pre-emulsification semi-continuous emulsion polymerization. The research results showed that the pigment printing adhesive emulsion had the relatively best combination property whan the polymerization and heat preservation conditions were 3 h at 75-80 ~C and 1 h at 85 ~C respectively, mass ratio of m （MMA） ： m （BA） was 25： 72, mass fractions of APS and composite emulsifier were 0.8% and 3% respectively in total monomers, and mass ratio of m（ SDS ） ：m（NP-40） was 1 ： （ 1.5-2.0）.