羧甲基纤维素钠凝胶的吸水性能研究  

Water Absorption Performance of Sodium Carboxymethyl Cellulose Gel

作　　者：马艳梅 苗书颜 MA Yan-mei;MIAO Shu-yan(School of Science and Technology,Xinyang University,Xinyang 464000,China)

机构地区：[1]信阳学院工学院,河南信阳464000

出　　处：《化学试剂》2023年第10期77-82,共6页Chemical Reagents

基　　金：国家自然科学基金资助项目(21501108)。

摘　　要：以滤纸、氢氧化钠、一氯乙酸为原料,制备羧甲基纤维素钠,再加入含有Al 3+的交联试剂,即获得羧甲基纤维素钠凝胶。并探究最合适的交联试剂浓度,进而探究羧甲基纤维素钠凝胶的吸水及保水性能。利用单因素分析法探究pH和温度对羧甲基纤维素钠凝胶吸水性能的影响。结果表明:羧甲基纤维素钠凝胶在去离子水中的吸水性能及吸满水后的保水性能较好,交联试剂中Al^(3+)浓度为0.1 mol/L,温度为20℃,pH 5.00时,质量吸水倍率最大,为12.48。表明羧甲基纤维素钠凝胶具有一定的吸水性和保水性。In this experiment,sodium carboxymethyl cellulose was prepared with filter paper,sodium hydroxide,and chloroacetic acid.Further introduction of Al 3+-contained crosslinking reagent produced sodium carboxymethyl cellulose gel.The optimum concentration of cross-linking reagent was determined to study the water absorption and water retention properties of carboxymethyl cellulose sodium gel.The effects of pH and temperature on water absorption of sodium carboxymethyl cellulose gel were investigated by single-factor analysis.The results showed that sodium carboxymethyl cellulose gel had good water absorption in deionized water and water retention after full water absorption.The maximum water absorption ratio was 12.48 under the conditions of 0.1 mol/L Al^(3+)in the crosslinking reagent,20℃,and pH 5.00.The results showed that the sodium carboxymethyl cellulose gel had certain water absorption and water retention properties.

关 键 词：羧甲基纤维素钠凝胶 吸水性能 保水率 质量吸水倍率 性能 

分 类 号：O65[理学—分析化学]