复配淀粉基高吸水性树脂的制备.pdf

安徽农业科学,Journal of Anhui Agri .Sci .2007 ,35(34) :11199 - 11200 ,11202 责任编辑庆瑢责任校对俞洁
复配淀粉基高吸水性树脂的制备
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王丽, 童群义( 1 . 江南大学食品科学与技术国家重点实验室, 江苏无锡214122 ;2 . 江南大学食品学院, 江苏无锡214122)
摘要采用氧化淀粉—丙烯酸— AMPS 接枝共聚物和交联羧甲基淀粉进行复配, 将两种原料按配比经混合、糊化、制片、粉碎、筛分制得
复配高吸水性树脂成品。试验表明, 最佳制备条件为: 氧化淀粉—丙烯酸— AMPS 接枝共聚物与交联羧甲基淀粉的质量比为8 , 糊化时的
加水量为500 g/ g , 糊化25 min, 制片温度为150 ℃。该产品将两种淀粉组分的优缺点互补, 生产成本低、安全性好, 吸生理盐水的倍率为
60 ~100 倍, 能在15 min 内全部被酶解。
关键词交联羧甲基淀粉; 高吸水性树脂; 淀粉; 吸水率
中图分类号 TS23 文献标识码 A 文章编号 0517 - 6611(2007)34 - 11199 - 02
Preparation pound Starch- based High Water-absorbing Resin
WANG Li et al ( State Key Laboratory of Food Science and Technology ,Southern Yangtze University , Wuxi , Jiangsu 214122)
Abstract Oxi dized starch– crylic acid – AMPS graft copolymer and crosslinked carboxymethyl starch pounded . Two ki nds of materials were
used to prepare a kind pound high water-absorbing resin production through mixing , gelatinizi ng , maki ng section, crushing and sieving by certai n
proportions . The results showed that the opti mumpreparation conditions were as follows : the mass ratio of oxi dized starch-crylic acid- AMPS graft copoly-
mer to crosslinked carboxymethyl starch was 8 ,water addition quantity for gelatinization was 500 g/ g ,the ti me of gelati nization was 25 min, making section
temperature was 150 ℃. This product had ple mentary feature of advantages and dis