经纱上浆用辐照醋酸酯淀粉制备及浆液性能  

Preparation of irradiated acetate starch for warp yarn sizing and its sizing performance

作　　者：李金汤 王洪龙 王晓广 夏发明 方可 苏小雅 LI Jintang;WANG Honglong;WANG Xiaoguang;XIA Faming;FANG Ke;SU Xiaoya(College of Textile Science and Engineering,Wuhan Textile University,Wuhan 430200,Hubei,China;Hubei Dingxin Environmental Protection New Materials Co.,Ltd.,Huangshi 435200,Hubei,China;Shandong Runquan Biotechnology Co.,Ltd.,Zaozhuang 277000,Shandong,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [2]湖北顶新环保新材料有限公司,湖北黄石435200 [3]山东润泉生物科技有限公司,山东枣庄277000

出　　处：《上海纺织科技》2024年第8期28-31,37,共5页Shanghai Textile Science & Technology

摘　　要：为扩宽淀粉的应用空间,研究了酯化处理、辐照处理对淀粉结构和浆液性能的影响;采用高能电子束辐照作为物理改性手段对淀粉进行辐照处理,采用醋酸乙烯酯作为酯化剂对淀粉进行酯化处理,优化了醋酸酯淀粉的制备工艺。较佳的工艺条件为:酯化剂质量分数30%、反应温度40℃、反应时间1.5 h、反应pH值9。并在该条件下对其红外光谱、接触角、浆液性能进行分析。结果表明:辐照处理不会引入新的官能团;酯化处理成功引入了乙酰基基团,大幅度提高了接触角,淀粉由亲水转为疏水,接触角达107.2°;辐照醋酸酯淀粉的黏度大幅度下降,黏度稳定性明显提高。To expand the application space of starch,the effects of esterification treatment and irradiation treatment on the structure of starch and its slurry properties are studied.High energy electron beam irradiation is used as a physical modification method to irradiate starch,and vinyl acetate is used as an esterifying agent to esterify starch.The preparation process of acetate starch is optimized,and the optimum process conditions are determined:the amount of esterifying agent is 30%,and reaction at 40℃for 1.5 hours with pH value of 9.And under this condition,the infrared spectrum,contact angle,and slurry performance are analyzed.The results show that irradiation treatment does not introduce new functional groups,the successful introduction of acetyl groups in esterification treatment significantly increases the contact angle,and the starch changes from hydrophilic to hydrophobic,with a contact angle of 107.2°.The viscosity of irradiated acetate starch decreases significantly,and the viscosity stability is significantly improved.

关 键 词：经纱 淀粉 醋酸乙烯 辐照 酯化 浆液性能 

分 类 号：TS103.846[轻工技术与工程—纺织工程]