季铵型低取代度阳离子淀粉的合成  

Preparation of Low-substituted Cationic Starch of Quaternary Ammonium Type

作　　者：张玉凤[1] 苏文强[1] 沈静[1] 

机构地区：[1]东北林业大学材料科学与工程学院生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《造纸化学品》2006年第6期16-20,共5页Paper Chemicals

摘　　要：以玉米淀粉和3-氯-2-羟丙基三甲基氯化铵(CHPT)为原料,以碱作催化剂,合成了季铵型阳离子淀粉。讨论了单因素对反应效率(RE)和取代度(DS)的影响;利用正交实验确定的最佳反应条件为:反应温度60℃、n(NaOH)∶n(CHPT)=1.94、反应时间6h、混合温度40℃、用水量(与淀粉的质量比)1.2。Low substituted cationic starch of quaternary ammonium type was prepared by the reaction of corn starch and 3-chloro-2-hydroxypropyltrimethylammonium chloride using alkaline as catalyst. The factors influencing the substitution degree and reaction efficiency were discussed in detail. The preliminarily optimized reaction conditions were obtained according to orthogonal experimental analysis, and were shown as follows： temperature, 60 ℃ ; NaOH/ CHPT mole ratio, 1.94 ： 1 ; reaction time,6 h; mixing temperature, 40 ℃ ; water/starch mass ratio, 1.2 ： 1.

关 键 词：淀粉 低取代度阳离子淀粉 助留助滤荆 

分 类 号：TS727[轻工技术与工程—制浆造纸工程] TS236.9