CAJ | 학술논문

以经超声活化的木薯淀粉、丙烯酸为原料，N，N`-亚甲基双丙烯酰胺为交联剂，过硫酸铵-亚硫酸氢钠为氧化还原引发剂，通过水溶液聚合法制备了淀粉-丙烯酸复合高吸水树脂。分别对丙烯酸与淀粉的摩尔比、中和度、引发剂用量、交联剂用量、进行单因素实验和正交实验，并通过极差、方差分析对影响材料吸水率的影响因素进行统计分析。结果表明，最佳的反应工艺条件为：丙烯酸/淀粉摩尔比9、中和度77%、引发剂用量0.5%、交联剂用量0.085%，在此条件下所合成的淀粉-丙烯酸高吸水性树脂吸水率为1554 g/g。该树脂具有较强的耐盐性能，在NaCl、MgCl2、FeCl3溶质溶液均能发生吸收，且在60 min左右均可达到饱和，饱和时吸液率分别可达到145、83、35 g/g，且树脂具较强的保水性能，在25、50、75℃的恒温水浴条件下放置16 h时，树脂的保水率分别为80.1%、61.2%、42.2%。
이경초성활화적목서정분、병희산위원료，N，N`-아갑기쌍병희선알위교련제，과류산안-아류산경납위양화환원인발제，통과수용액취합법제비료정분-병희산복합고흡수수지。분별대병희산여정분적마이비、중화도、인발제용량、교련제용량、진행단인소실험화정교실험，병통과겁차、방차분석대영향재료흡수솔적영향인소진행통계분석。결과표명，최가적반응공예조건위：병희산/정분마이비9、중화도77%、인발제용량0.5%、교련제용량0.085%，재차조건하소합성적정분-병희산고흡수성수지흡수솔위1554 g/g。해수지구유교강적내염성능，재NaCl、MgCl2、FeCl3용질용액균능발생흡수，차재60 min좌우균가체도포화，포화시흡액솔분별가체도145、83、35 g/g，차수지구교강적보수성능，재25、50、75℃적항온수욕조건하방치16 h시，수지적보수솔분별위80.1%、61.2%、42.2%。
A novel super absorbent resin based on ultrasonic activated cassava starch and acrylic acid was synthesized by aqueous polymerization using cassava starch and acrylic acid as raw material, N,N`-methylenebisacrylamide as crosslinker, ammonium persulfate and sodium bisulfite as redox initiator. The effects of parameters including the mol ratio of acrylic acid to starch, neutralization degree and amount of initiator, crosslinker on the water absorbent were investigated by single factor test and orthogonal array design methods, and the notability difference was analyzed with the statistic method of range and variance. The results showed that the optimal conditions were as follows: the mol ratio of acrylic acid to starch was 9, neutralization degree was 77%, the amount of initiator was 0.5% and the amount of crosslinker was 0.085%. Under these conditions, the maximum water absorbance of the superabsorbent was 1554 g/g. The resin had a strong salt-tolerant performance and the max absorption was happened under the same ionic strength of NaCl, MgCl2, FeCl3 solution in 60 min and the absorption were 145 g/g, 83 g/g, 35 g/g respectively. The water retention rates were 80.1%, 61.2%, 42.2%respectively when the resin was placed in 25, 50, 75℃constant temperature water bath for 16 h.