羧甲基化氧化淀粉粘度的影响因素  

Study on Factors Affecting Viscosity of Carboxymethyl Oxidation Starch

作　　者：付丽红[1] 吕立学[1] 

机构地区：[1]山东轻工业学院皮革化学与工程省级重点学科,山东济南250100

出　　处：《皮革与化工》2008年第1期5-9,28,共6页Leather And Chemicals

摘　　要：以玉米淀粉为原料，采用氧化与羧甲基化相结合的改性方法，制备低粘度皮革涂饰用粘合剂，对反应物的用量、时间、温度、转速等因素对产物粘度的影响进行了研究。结果表明，随过氧化氢和催化剂用量的增加、反应温度的升高，产物的粘度急剧下降；随淀粉用量的增加、转速的升高，产物粘度迅速上升；硼砂和一氯乙酸用量对粘度影响较小。当反应时间〈60min时，产物的粘度急剧增加，在反应时间60～180min的范围内，粘度急剧下降，之后基本不变。Leather coated with low viscous adhesion agent coated was prepared by using oxidation combined with carboxymethylation. The effect of dosage of reactant, reaction time, temperature and rotate speed of agitator on the viscosity of carboxymethyl oxidation corn starch were studied. The results indicated that the viscosity of product decreased dramatically with the increasing of the dosage of H2O2 and catalyst, and increasing of the reaction temperature, but increased rapidly with the increasing starch dosage and rotate speed of agitator. The dosage of borax and CH2ClCOOH have no influence on viscosity. The viscosity of product increased rapidly as the reaction time was much smaller than 60 min, and declined sharply in this rage from 60 to 180 rain of time, then low after 180 min.

关 键 词：玉米淀粉 羧甲基氧化淀粉 粘度 

分 类 号：TQ432.2[化学工程]