摘要
在丙烯酸(AA)、2-丙烯酰胺-2-甲基丙烷磺酸盐(AMPS)混合物中,加入高岭土、引发剂过硫酸钾和交联剂N,N-亚甲基双丙烯酰胺,得到超吸水树脂。最佳合成条件为:AA和AMPS单体质量比4∶1,引发剂、交联剂、高岭土加量分别为单体总质量的0.2%、0.06%、10%,反应温度72℃,中和度75%。在此反应条件下,树脂的吸水倍率和吸盐水倍率分别为1200和92.3 g/g。树脂保水性能测试结果表明,随时间延长、温度升高,树脂失水率增大。随高岭土加量的增大,树脂保水率先增加后降低。高岭土加量为10%时,保水率达到最大值82%。
The super-absorbent compound resin was synthesized by aqueous solution polymerization using acrylic acid(AA),2-acrylamide-2-methyl propane sulfonate(AMPS),initiator potassium persulphate,cross-linking agent N,N-methylenebisacrylamide and kaolin clay mineral as raw materials. The optimum reaction condition was obtained as follows: 4∶1 mass ratio of AA to AMPS,0.2%,0.06% and 10% initiating agent,cross-linker and kaolin dosage for total monomer in quality respectively,72℃reaction temperature,75% neutralization degree of acrylic acid. The absorption ratio of super-absorbent resin synthesized under optimum condition for pure water and salt water was 1200 and 92.3 g/g,respectively. The water loss and retention property of resin was studied,and the results showed that the water loss rate increased with extending time and increasing temperature. The retention water rate of resin increased first and then decreased with increasing dosage of kaolin. When the dosage of kaolin was 10%,the water retention rate reached to maximum value 82%.
出处
《油田化学》
CAS
CSCD
北大核心
2014年第2期219-222,共4页
Oilfield Chemistry
