中温水溶淀粉浆料的制备及性能研究  

Preparation and Property Study of Medium Temperature Water Soluble Starch Size Mixture

作　　者：周丹[1] 张晨阳[1] 沈艳琴[1] 武海良[1] 姚一军 ZHOU Dan;ZHANG Chenyang;SHEN Yanqin;WU Hailiang;YAO Yijun(Xi'an Polytechnic University,Xi'an,710048,China)

机构地区：[1]西安工程大学,陕西西安710048

出　　处：《棉纺织技术》2022年第9期34-38,共5页Cotton Textile Technology

基　　金：陕西省三秦学者创新团队经费资助;陕西省教育厅专项科研计划项目(21JK0664)。

摘　　要：研究采用常压多元醇法制备中温水溶淀粉浆料,并对其进行性能表征。分别以扫描电镜图、红外光谱图和X射线衍射图分析了制备的中温水溶季铵阳离子淀粉的微观形貌、基团变化和晶型结构,探讨了反应参数和季铵阳离子取代度对中温水溶季铵阳离子淀粉浆液溶解度、黏度的影响,考察了中温水溶季铵阳离子淀粉的浆液、浆膜和浆纱性能。结果表明:所制备的中温水溶季铵阳离子淀粉黏度降低,引入了氨基基团,晶型结构发生变化,呈现较大无定形区,有利于淀粉的中温水溶性;最佳制备工艺参数:季铵阳离子淀粉取代度0.030 1,反应时间10 min,反应温度140℃,季铵阳离子淀粉、水、1,2-丙二醇质量比为1∶1∶5,所制备的淀粉在65℃可溶于水,溶解度高达96.1%;采用所制备的中温水溶季铵阳离子淀粉在浆纱时需加入渗透剂以提高浆纱性能。认为:常压多元醇法制备中温水溶淀粉浆料满足中温可溶及较好的黏附性,中温水溶淀粉在中温浆纱时的渗透性问题有待进一步研究。Medium temperature water soluble starch size mixture was prepared with atmospheric pressure polyol method in the study,its properties were evaluated.Morphology,group change and crystal structure of prepared medium temperature water soluble quaternary ammonium cationic starch were analyzed by scanning electron microscope,infrared spectrogram and X-ray diffraction diagram separately. Influences of reaction parameters and quaternary ammonium cationic substituted ratio on solubility and viscosity of medium temperature water soluble quaternary ammonium cationic starch were discussed. Properties of sizing,sized film and sized yarn of medium temperature water soluble quaternary ammonium cationic starch were investigated.Test results showed that viscosity of prepared medium temperature water soluble quaternary ammonium cationic starch was decreased. After introducing amino group,crystal structure was changed showing larger amorphous region.It was beneficial to medium temperature water solubility of starch. The optimized preparation process parameters were 0.030 1 quaternary ammonium cationic starch substituted ratio,10 min reaction time,140 ℃ reaction temperature,mass ration 1∶1∶5quaternary ammonium cationic starch,water and 1,2-propylene glycol.Prepared starch was water soluble at 65 ℃ and solubility was reached 96.1%.Penetrating agent was needed to add in prepared medium temperature water soluble quaternary ammonium cationic starch during yarn sizing to improve sizing property. It is considered that medium temperature water soluble starch prepared by atmospheric pressure polyol method is water soluble at medium temperature and with better adhesiveness.Permeability problems of medium temperature water soluble starch during yarn sizing at medium temperature need to be further studied.

关 键 词：阳离子淀粉 中温浆纱 常压多元醇法 浆液性能 

分 类 号：TS105.21[轻工技术与工程—纺织工程]