摘要
以淀粉、丙烯酰胺、丙烯酸为共聚单体,硝酸铝为交联剂,过硫酸钾为引发剂,Span-60/Tween-60为复合乳化剂,采用反相悬浮聚合法合成了一种新型暂堵剂淀粉-丙烯酰胺-丙烯酸共聚物,并采用SEM和FTIR技术对共聚物进行了表面形貌分析和结构表征;考察了硝酸铝用量、丙烯酸中和度和淀粉用量对暂堵剂吸水性能的影响。实验结果表明,暂堵剂的最佳合成条件:丙烯酰胺5.00 g、环己烷60 mL、0.80 g Span-60、0.40 g Tween-60、丙烯酸中和度80%、淀粉1.50 g、硝酸铝0.02 g、70℃、3 h;在该条件下合成的暂堵剂的吸水倍率最大,且具有适中的强度。
With starch, acrylamide and acrylic acid as comonomers, aluminum nitrate as a cross-linking agent,potassium peroxydisulfate as an initiator and Span-60/Tween-60 as a suspension dispersing agent, a new temporary blocking agent（TPA）, starch-acrylamide-acrylic acid copolymer, was prepared by inverse suspension polymerization. The surface morphology and structure of the copolymer were characterized by means of SEM and FFIR. The factors influencing TPA＇ s water absorption were studied, including the cross-linking agent content, the neutralization degree of acrylic acid and the starch content. The optimum conditions to synthesize TPA with good stability are： 5.00 g acrylamide,60 mL cyclohexane,0. 80 g Span-60, 0. 40 g Tween-60, 80% neutralization degree, 1.50 g starch, 0. 02 g aluminum nitrate and reaction under 70℃ for 3 b.
出处
《石油化工》
CAS
CSCD
北大核心
2011年第3期308-311,共4页
Petrochemical Technology
基金
甘肃省自然科学基金资助项目(0710RJZA066)
兰州市科技计划资助项目(2008-1-21)
关键词
丙烯酸
丙烯酰胺
淀粉
反相悬浮聚合
暂堵剂
吸水性能
acrylic acid
acrylamide
starch
inverse suspension polymerization
temporary blocking agent
water absorption
