微波辅助制备接枝阳离子淀粉及其理化性能研究  

Microwave-initiated synthesis and physicochemical characterization of grafted cationic starch

作　　者：张昊[1,2] 王建坤[1,2] 王瑞[1,2] 董永春[1] 

机构地区：[1]天津工业大学纺织学院,天津300387 [2]天津工业大学先进纺织复合材料教育部重点实验室,天津300387

出　　处：《功能材料》2013年第12期1699-1702,1708,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20773093);天津市高等学校科技发展基金计划资助项目(ZD200720);天津工业大学研究生教育创新计划资助项目(12102)

摘　　要：以阳离子玉米淀粉(CS)为原料,丙烯酰胺(AM)、甲基丙烯酸-β-羟乙酯(HEMA)和丙烯酸丁酯(BA)为单体在微波场中进行接枝共聚,制备出接枝阳离子淀粉(GCS)。通过FT-IR、SEM和XRD对产物的结构进行了表征,系统研究了产物的理化特性,并测试了其粘附性能。结果表明,经微波辐射接枝变性,GCS理化性能改善:淀粉结晶度降低,团粒结构弱化,水合能力增强;特性粘度与表观粘度下降,流变性能改善。GCS对涤棉纤维粘附性提高,克服了PVA对疏水性合成纤维粘附力不足的缺陷。深入探讨了淀粉理化特性对其浆用性能的影响机理。Graft cationic starch （GCS） was synthesized by microwave radiation using acrylamide （AM）, t3 hydroxyethyl methacrylate （HEMA） and n butyl acrylate （BA） as grafting monomers. The graft copolymer was characterized by FT IR, SEM and XRD, the physicochemicat characteristics were studied and the adhesion properties were tested. Results showed that after microwave-initiate grafting modification, the physicochemical properties of GCS improved： the crystallinity reduced, granular structure weakened, hydration capacity raised; the intrinsic viscosity, apparent viscosity decreased, rheological property improved. The adhesion to polyester/ cotton fibers of GCS was enhanced, which compensated for the insufficient adhesion to hydrophobic fibers of PVA. The mechanisms that starch physicochemical properties affect its sizing properties were discussed.

关 键 词：接枝阳离子淀粉 微波辐射 水合能力 流变性能 粘附性 

分 类 号：O636[理学—高分子化学]