双亲两嵌段接枝淀粉浆料的制备及其上浆性能  

Preparation and sizing properties of amphiphilic diblock grafted starch sizing agent

作　　者：李伟 张正桥 徐珍珍 张朝辉 LI Wei;ZHANG Zhengqiao;XU Zhenzhen;ZHANG Chaohui(College of Textiles and Garments, Anhui Polytechnic University, Wuhu, Anhui 241000, China)

机构地区：[1]安徽工程大学纺织服装学院,安徽芜湖241000

出　　处：《纺织学报》2022年第1期141-146,共6页Journal of Textile Research

基　　金：安徽省自然科学基金面上项目(1908085ME124);安徽省重点研发计划项目(201904a06020001);安徽省纺织工程技术研究中心、安徽省高等学校纺织面料重点实验室开放基金项目(2021AETKL17)。

摘　　要：为提高淀粉浆料的使用性能,为纺织经纱上浆提供新型接枝淀粉浆料品种,以丙烯酸(AA)和丙烯酸丁酯(BA)为接枝单体,2-溴异丁酯化淀粉(BBES)为大分子引发剂,利用电子转移活化再生催化剂原子转移自由基聚合技术成功制备了双亲两嵌段接枝淀粉[BBES-g-(PAA-b-PBA)]。以酸解淀粉、BBES为对比样,探讨了双亲两嵌段接枝支链的引入对淀粉浆液性能、浆膜力学性能的影响。结果表明:接枝支链的引入能够进一步增加淀粉浆液的黏度热稳定性、黏附性及其浆膜的断裂伸长率;随着AA接枝率的降低及同时BA接枝率的增加,淀粉浆液的黏度热稳定性变化不大,对涤纶的黏附力和浆膜的断裂伸长率逐渐增加,浆膜的断裂强度逐渐降低。In order to provide a new grafted starch for enhancing usability of starch sizing agent in warp sizing,amphiphilic diblock grafted starch[BBES-g-(PAA-b-PBA)]was prepared by activators regenerated by electron transfer for atom transfer radical polymerization with acrylic acid(AA)and butyl acrylate(BA)as monomers and 2-bromoisobutyl esterified starch(BBES)as macromolecular initiator.Taking acid-hydrolyzed starch and BBES as contrast samples,effects of the amphiphilic diblock grafted branches on the properties of starch paste and tensile property of starch film were discussed.The results showed that the paste properties and film elongation are demonstrated in the order of BBES-g-(PAA-b-PBA)>BBES>acid-hydrolyzed starch,indicating that introduction of the grafted branches can further improve the viscosity stability of starch paste,adhesion to polyester fibers and breaking elongation of starch film.With the decrease in the grafting ratio of AA while the increase in the grafting ratio of BA,viscosity stability exhibited a slight difference,the adhesion and film elongation demonstrated a gradual increase,whereas tensile strength of the film decreased monotonically.

关 键 词：淀粉浆料 接枝变性 接枝率 上浆性能 双亲两嵌段接枝淀粉 

分 类 号：TS103.846[轻工技术与工程—纺织工程]