保水型PVAc固沙乳液的制备与性能研究  

Preparation and properties of water-retention-type PVAc sand-fixing emulsion

作　　者：杜泽川 谢浩[1,2] 刘白玲[1] 焦旗[1,3] 陈华林[1] 

机构地区：[1]中国科学院成都有机化学研究所,四川成都610041 [2]中国科学院大学,北京100049 [3]神华宁夏煤业集团煤制油化工研发中心,宁夏银川750411

出　　处：《化学研究与应用》2017年第6期847-851,共5页Chemical Research and Application

基　　金："十三五"国家重点研发计划"典型脆弱生态修复与保护研究"重点专项"中国北方半干旱荒漠区沙漠化防治关键技术与示范项目"(2016YFC0500900)资助;高分子材料工程国家重点实验室开放课题基金项目(sklpme2016-4-24)资助

摘　　要：以醋酸乙烯酯(VAc)为主单体,丙烯酸异辛酯(EHA)和丙烯酰胺(AM)为功能单体,采用半连续乳液聚合的方法,合成了一类具有不同AM含量的PVAc固沙乳液,并测定了具有不同AM含量的固沙乳液的稳定性、粒径和粘度,以及固沙性能。结果表明,该固沙乳液具有良好的稳定性、粒径适中、粘度小,固沙性能和保水性能优良,且随着AM含量的增加,固沙强度和保水率也随之增大。A kind of PVAc sand-fixing emulsion with different AM content was synthesized by semi-continuous emulsion polymerization using vinyl acetate（ VAc） as main monomer in the presence of and 2-ethylhexyl acrylate（ EHA） and acrylamide（ AM） as functional monomers.And then the stability,particle size,viscosity and sand-fixing properties of the prepared emulsions were tested.The results showed that the prepared sand-fixing emulsions had good stability,proper particle size,small viscosity and good sand-fixing property and water retention property.And the sand-fixing strength and water retention rate were increased with the increasing of AM content.

关 键 词：半连续乳液聚合 PVAc固沙乳液 固沙性能 保水性能 

分 类 号：O632.33[理学—高分子化学]