[1]石生敏,李凯旺,潘淑仪,等.P(CMSNa-NaAlg-AA)高吸水树脂制备及其性能研究[J].燕山大学学报,2018,42(4):350-355.[doi:10.3969/j.issn.1007-791X.2018.04.010]
　SHI Shengmin,LI Kaiwang,PAN Shuyi,et al.Study on preparation and properties of P(CMSNa-NaAlg-AA) super absorbent[J].Journal of YanShan University,2018,42(4):350-355.[doi:10.3969/j.issn.1007-791X.2018.04.010]
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P(CMSNa-NaAlg-AA)高吸水树脂制备及其性能研究
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《燕山大学学报》[ISSN:1007-791X/CN:13-1219/N]

卷:
42
期数:
2018年第4期
页码:
350-355
栏目:
化学工程
出版日期:
2018-09-30

文章信息/Info

Title:
Study on preparation and properties of P(CMSNa-NaAlg-AA) super absorbent
文章编号:
1007-791X（2018）04-0350-06
作者:
石生敏1; 李凯旺2; 潘淑仪2; 张伟2; *
1.天津翔盛新材料有限公司，天津 300384；2.燕山大学 环境与化学工程学院，河北 秦皇岛 066004
Author(s):
SHI Shengmin1; LI Kaiwang2; PAN Shuyi2; ZHANG Wei2
1.Tianjin Xiang Sheng New Materials Co. Ltd.,Tianjin 300384,China; 2.School of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao，Hebei 066004,China
关键词:
羧甲基淀粉钠; 海藻酸钠; 丙烯酸; 镉离子
Keywords:
carboxymethyl starch; sodium alginate; acrylic acid; heavy metal
分类号:
TQ325.7
DOI:
10.3969/j.issn.1007-791X.2018.04.010
文献标志码:
A
摘要:
以一定比例的羧甲基淀粉钠（CMSNa）、海藻酸钠（NaAlg）为接枝基体，丙烯酸（AA）为单体，过硫酸铵（NPS）为引发剂，N,N’亚甲基双丙烯酰胺（MBA）为交联剂，采用水溶液聚合法合成高吸水树脂。探讨了不同反应条件对吸水性能的影响，并研究了吸水树脂吸附重金属（Cd2+）的动力学及热力学特性。结果表明，当m（CMSNa）：m(NaAlg）=2.5，引发剂用量为单体用量0.3%，交联剂用量为单体用量0.025%，丙烯酸中和度为70%，反应温度为65 ℃时，吸去离子水及0.9%NaCl溶液倍率分别为2 308.48 g/g、126.8 g/g。吸水树脂对于镉离子的吸附研究表明，高吸水树脂对于镉离子的吸附在pH值为7时吸附容量最大，为343.44 mg/g，且吸附符合准二级动力学模型及Langmuir吸附等温模型。
Abstract:
The water-absorbent resin is prepared by aqueous solution polymerization,with a certain proportion of carboxymethyl starch (CMSNa),alginate (NaAlg) as the graft matrix,acrylic acid (AA) as monomers,ammonium persulfate (NPS) as initiator,N,N’methylene double acrylamide (MBA) as cross-linking agent.The effects of different reaction conditions on the water absorption were discussed.The kinetics and thermodynamic properties of heavy metal (Cd2+) adsorbed by water-absorbent resin were studied.The results showed that,the ratio of deionized water and 0.9% NaCl solution was 2 308.48 g/g and 126.8 g/g when m(CMSNa):m(NaAlg)=2.5,the amount of initiator was 0.3%,the amount of crosslinking agent was 0.025%,neutralization degree of acrylic acid was 70%,and the reaction temperature was 65 ℃.Absorption of Cd2+ by water-absorbent resin showed that,the maximum adsorption capacity of the absorbent resin was 343.44 mg/g in a solution of pH 7.And the adsorption is in accordance with quasi second order kinetics model and Langmuir adsorption isotherm model.

相似文献/References:

[1]霍全,刘冬,赵晶晶,等.海藻酸钠/羧甲基纤维素/丙烯酸双母系高吸水性树脂的合成与表征[J].燕山大学学报,2016,(2):184.[doi:10.3969/j.issn.1007-791X.2016.02.013]
　HUO Quan,LIU Dong,ZHAO Jing-jing,et al.Synthesis and characterization of double matriarchal SSA/CMC/AA absorbent resin[J].Journal of YanShan University,2016,(4):184.[doi:10.3969/j.issn.1007-791X.2016.02.013]

备注/Memo

备注/Memo:
收稿日期：2017-05-23        责任编辑：王建青
基金项目：天津市科技计划项目（11zxcxgx117700）
作者简介：石生敏（1966-），男，河北石家庄人，高级工程师，主要研究方向为粉末涂料及高分子合成；*通信作者：张伟（1965-），男，河北张家口人，博士，副教授，主要研究方向为功能高分子合成及无机化工， Email: zhangweihh@ysu.edu.cn。
更新日期/Last Update: 2018-11-29