高吸水性树脂用作油井堵水剂的初步研究  

PREPARATION OF HIGH WATER-ABSORBENT RESIN FROM ACRYLIC FIBER WASTES AND POSSIBILITY OF USING IT AS WATER-PLUGGING AGENT

作　　者：蔡会武[1] 李侃社[1] 赵林[2] 

机构地区：[1]西安科技学院材料工程系,陕西西安710054 [2]四川大学高分子研究所

出　　处：《油田化学》2000年第3期237-239,245,共4页Oilfield Chemistry

摘　　要：废旧腈纶毛线常压碱法水解物与甲醛进行交联反应 ,制得高性能吸水树脂。研究了水解工艺条件 :投料比为PAN∶NaOH∶H2 O =1∶0 .6∶8;水解反应温度为 90— 95℃ ;反应时间 7h。论述了交联剂用量、交联反应时间、干燥条件对产品吸水性能的影响。The acrylic fiber wastes(PAN) are hydrolyzed with alkaline at atmospheric pressure and the hydrolyzate is crosslinked by CH 2O in aqueous solution to obtain a high water absorbing resin. The optimal parameters of preparation are: PAN∶NaOH∶H 2O=1∶0.6∶8, 90—95℃, 7 hrs for hydrolysis; molar ratio of CH 2O to amido group 0.4, 95℃, 2 hrs for crosslinking; 2 hrs at 160℃ and 12 hrs at 80℃ for drying. 1 g resin can absorb 770 g distld water or 67 g saturated NaCl solution. In core experiments on sand packs of permeability 2.5—10 μm 2, plugging rates 96.5—98.3% for water and 8.1—15.1% for oil(kerosene) are observed after finely powdered( d ≤90 μm) resin suspension in water injected and gelated.

关 键 词：水解聚丙烯腈 高吸水性树脂 油井堵水剂 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程] TE39