变性和增塑剂对淀粉/PVA混合浆相分离速度的影响  

Influence of Modification and Plasticizers on Phase Separation Rates of Starch/Polyvinyl Alcohol Pastes

作　　者：李伟 吴杰 王颖 吴兰娟 张正桥 鲁育豪 LI Wei;WU Jie;WANG Ying;WU Lan-juan;ZHANG Zheng-qiao;LU Yu-hao(College of Textile and Garment,Anhui Polytechnic University,Wuhu Anhui 241000,China;Hefei Safood Starch Co.Ltd.,Hefei Anhui 230000,China)

机构地区：[1]安徽工程大学纺织服装学院,安徽芜湖241000 [2]合肥塞夫特淀粉有限公司,安徽合肥230000

出　　处：《武汉纺织大学学报》2019年第6期27-30,共4页Journal of Wuhan Textile University

基　　金：安徽省自然科学基金面上项目(1908085ME124);安徽省2019年度省重点研发计划立项项目(201904a06020001);2018年度芜湖市科技计划项目(2018pt04);2018年校级国家自然科学基金预研项目(2018yyzr08)

摘　　要：以初显相分离时间为指标,评价磺基-2-羟丙基变性和癸二酸交联变性对淀粉/PVA混合浆相分离速度的影响,考察增塑剂品种及用量,以及淀粉共混比例对磺基-2-羟丙基木薯淀粉(HPSS)和癸二酸交联木薯淀粉(SACLS)分别与PVA所成混合浆相分离速度的影响。结果表明:2种变性明显降低了淀粉/PVA-1799混合浆的相分离速度,3种增塑剂均能降低HPSS/PVA-1799、SACLS/PVA-1799混合浆的相分离速度,且丙三醇的作用效果最好。丙三醇用量分别为6%和10%时,2种混合浆展示最低相分离速度。随着共混比例的增加,相分离速度先加快后减缓。By the initial demixing time,the influence of hydroxypropylsulfonation and sebacic acid cross-linking on the phase separation rate of starch/polyvinyl alcohol(PVA)blend paste was evaluated,and the effects of plasticizer varieties,dosage and blending ratio of starch on the separation rate of hydroxypropylsulfonated cassava starch(HPSS)and sebacic acid cross-linked cassava starch(SACLS)were also investigated.The results showed that the two modifications could significantly reduce the separation rate of starch/PVA-1799 blend paste.The rates of HPSS/PVA-1799 and SACLS/PVA-1799 blend pastes were reduced after the addition of the three plasticizers,and glycerol showed the best plasticization.When the amount of glycerol was 6%and 10%,respectively,the HPSS/PVA-1799 and SACLS/PVA-1799 blend pastes showed the lowest separation rate.With the increase in blending ratio of the modified starch,the rate increased and then decreased.

关 键 词：淀粉 聚乙烯醇 初显相分离时间 相分离速度 

分 类 号：TS103.846[轻工技术与工程—纺织工程]