微波辐射制备室温自交联含氟聚丙烯酸酯乳液  

Preparation of room temperature self-crosslinking fluorinated polyacrylate latex under microwave radiation

作　　者：严微[1] 黄丽君[1] 王丽[1] 徐明[1,2] 徐祖顺[1] 

机构地区：[1]湖北大学材料科学与工程学院,湖北省武汉市430062 [2]武汉城市职业学院,湖北省武汉市430064

出　　处：《合成树脂及塑料》2012年第4期30-33,共4页China Synthetic Resin and Plastics

基　　金：湖北省自然科学基金创新群体项目(2010CDA077)

摘　　要：在微波辐射下,以甲基丙烯酸十二氟庚酯（DAAM）为含氟单体,双丙酮丙烯酰胺为功能单体,己二酸二酰肼为交联剂,阴离子十二烷基硫酸钠和非离子脂肪醇聚氧乙烯醚为复合乳化剂,在过硫酸钾的引发下,制备了可室温自交联的含氟聚丙烯酸酯乳液。考察了交联单体用量对转化率、粒径分布及分布指数和乳胶膜吸水率的影响。w（DAAM）为5%时,乳液乳胶粒呈球形,平均粒径在60~70 nm。随着DAAM用量的增加,乳胶膜吸水率减小,此时交联起主导作用;进一步增加DAAM用量,乳胶膜吸水率反而增大,此时亲水性起主导作用。Room temperature self-crosslinking fluorinated polyacrylate latex was prepared under microwave irradiation with dodecafluoroheptyl methacrylate（DAAM） as fluorine-containing monomer,diactone acrylamide as functional monomer,adipic dihydrazide as crosslinking agent,anionic sodium dodecyl sulfate and non-ionic aliphatic alcohol polyoxyethylene ether as composite emulsifier,and potassium persulfate as initiator.The impact of the crosslinking monomer amount on the conversion of monomers,particle size distribution and its index of the latex and water absorption of the latex film were studied.The latex formed in the shape of spherical particles with average diameter of 60-70 nm when the mass content of DAAM was 5%.As the DAAM content augmented the water absorption of the latex film decreased and in the meantime,the crosslinking played a leading role.However,if the DAAM content continued to rise,the water absorption of the latex film increased instead meanwhile the hydrophilic property took over the dominant role.

关 键 词：含氟聚丙烯酸酯乳液 自交联 交联单体 微波辐射 

分 类 号：TQ316.334[化学工程—高聚物工业]