建筑密封膏用丙烯酸乳液的合成研究  

Study on synthesis of acrylic acid emulsion for building paste sealant

作　　者：李入林[1] 王琳[2] 张坤林[1] 

机构地区：[1]南阳理工学院生化系,河南南阳473004 [2]南阳师范学院化学系,河南南阳473061

出　　处：《南阳师范学院学报》2006年第6期47-51,共5页Journal of Nanyang Normal University

摘　　要：采用半连续种子乳液聚合法，合成了粘度较高、粘接力强、稳定性较好、耐水性和韧性较强的用于制备建筑密封膏的丙烯酸乳液。通过正变实验和单因素实验得到最佳合成条件是：以2．0g过硫酸钾为引发剂，用2．0g十二烷基苯磺酸钠（SDS）与1g OP-10配成复合乳化剂，33mL甲基丙烯酸甲酯（MMA）为硬单体，40mL丙烯酸丁酯（BA）为软单体。2．0mL丙烯酸（AA）为功能单体，反应温度75℃～80℃。Acrylic acid emulsion with high viscosity, strong cohesion, good stability, high antiwater and toughness for building paste sealant was synthesized by half-constant seed polymerization. The best synthesizing conditions were found by orthogonal and single-factor experiment, as follows：2.0 g of patassium persulfate was used as initiator;the mixture of 2.0 g of sodium dodecalkl phenyl sulfonate and 1 g of OP-10 was used as compound emulsifying agent; 33 mL of methyl methyl propenate was used as hard monomer ;40 mL of butanyl propenate was used as soft monomer;2.0 mL of acrylic acid was used as functional monomer; reaction temeperature was 75 ℃ - 80℃ .

关 键 词：丙烯酸酯 半连续乳液聚合 丙烯酸 乳液 建筑密封膏 

分 类 号：TQ331.47[化学工程—橡胶工业]