耐盐性丙烯酸-可溶性淀粉-腐植酸高吸水性树脂的紫外光引发聚合及其性能研究-学兔兔 www.xuetutu.com.pdf

石油化
798
PETROCHIEMICAL TECHNOLOGY
2010年第39卷第7期
Bc5cveotンS
石油化工新材料
耐盐性丙烯酸一可溶性淀粉一腐植酸高吸水性
树脂的紫外光引发聚合及其性能研究
买买提江?依米提,斯玛伊力?克热木,司马义?努尔拉
(新疆大学化学与化工学院,新疆乌鲁木齐830046)
「摘要以丙烯酸(AA)为接枝单体,可溶性淀粉(CTS)和腐植酸(HA)为原料,过硫酸铵(APS)为引发剂,在自制的紫外光引发
聚合装置上合成了复合耐盐性AA-CTS-HA高吸水性树脂(简称AA-CTS-HA树脂);考察了AA中和度、HA含量、CTS含
量、APS含量和辐照时间等因素对AA-CTS-HA树脂吸水率的影响;用FTIR和SEM技术对产物的结构进行了表征。在最佳合
成条件(AA中和度80%、辐照时间40min、w(CTS)=24.00%(基于AA)、w(HA)=12.00%(基于AA)、W(APS)=0.12%(基于
AA)、反应温度50c)下合成的AA-CTS-HA树脂的吸去离子水率为1280g/g,吸生理盐水率(质量分数为0.9%的NaCI水溶
液)为163g/g。
关键词]丙烯酸;可溶性淀粉;腐植酸;紫外光引发聚合;高吸水性树脂;吸水率
[文章编号]11000-8144(2010)07-0798-06
中图分类号]TQ316.343
[文献标识码]A
Performance of Salt-resistant Acrylic Acid-soluble Starch-ifumic Acid
Super Water Absorbing Resin Synthesized Through UV Photopolymerization
Mamatjan Yimit, ismail Kiram, ismayil Nurulla
College of Chemistry and Chemical Engineering, Xinjiang University, Urumqixinjiang 830046, China)
Abstract A salt-resistant super water absorbing resin was synthesized from acrylic acid(AA)
soluble starch(CTS and humic acid(HA with ammonium persulfate(APS) as initiator through
ultraviolet photopolymerization. Effects of AA neutralization degree, HA content, CTS content, APS
content and irradiation time on water absorption of the synthesized AA-CTS-HA super water absorbing
resin were studied. The products were characterized by means of FTIR and SEM. Under the optimum
conditions of acrylic acid neutralization degree 80%, iradiation time 40 min, w(CTS)24.00%
based on AA), w(HA 12. 00%(based on AA), w(APS)0. 12%(based on AA )and reaction
temperature 50 C, the water absorptions of the AA-CTS-HA super water absorbing resin were
1 280 g/g for deionized water and 163 g/g for normal saline with Nacl mass fraction 0. 9%
I Keywords acrylic acid soluble starch; humic acid; UV photopolymerization; super water absorbing
resin; water absorption
高吸水性树脂是近年来迅速发展的一类新型来发展迅速的一种新方法,具有简单、成本低和
功能高分子材料。我国沙漠和荒漠面积较大(尤反应时间短等特点。淀粉系高吸水性树脂是研究
其是西北地区),高吸水性树脂在防沙治沙、促进农
林业发展和改善生态环境等方面具有重大的实际[收稿日期】20-01-18;[修改稿日期】2010-04-20
意义,但还存在成本高、耐盐性差和功能单一等不「作者筒介1买买提江?依米提(1969-),男(维吾尔族),新疆维吾
足4-4。目前,合成高吸水性树脂的方法很多,传统
尔族自治区克拉玛依市人,硕士,讲师,电话13119910465,电邮
mmg10@sina.com。联系人:司马义?努尔拉,电话0991-858375,
的方法有反相乳液聚合、反相悬浮液聚合、水溶液电邮 ismayilnu sohu com
化学聚合和接枝聚合等的。光辐照聚合法是近年甚金项目]新疆大学校院联合项日(xY4)