安徽工程大学学报2025，Vol.40Issue(2)：48-53,6.
pH值和接枝率对淀粉接枝聚丙烯酰胺浆料性能的影响
Influences of the pH Value and Grafting Ratio on the Properties of Starch-grafted Polyacrylamide
摘要
Abstract
The acrylamide(AM),acid-thinned starch,and potassium persulfate were used as the grafting monomer,raw material,and the initiator,respectively,to prepare the starch-grafted-polyacrylamide(S-g-PAM)samples with different grafting ratios by graft copolymerization.The influence of pH value on its Zeta potential and adhesion to wool fibers was studied,and the suitable pH value was identified.Furthermore,the impact of the grafting ratio on its Zeta potential,adhesion to wool fibers,solubility,light transmittance,and other properties was explored,as well as its desizability under alkaline conditions.The research results show that pH value significantly affects the Zeta potential and adhesion of S-g-PAM.The change in Zeta potential is an important factor in the change of adhesion force with pH value.The adhesion force is strongest at pH=7 and decreases gradually as the pH increases.Introducing PAM branches can significantly improve starch solubility,light transmittance,film swelling properties,and adhesion to wool fibers.Solubility and light transmittance increase with the rise in the grafting ratio,but there is no significant change in Zeta potential,revealing that the improvement of solubility and light transmittance is an important factor affecting the enhanced adhesion between S-g-PAM and wool fibers with increasing grafting ratio.Under the alkaline condition,S-g-PAM exhibits excellent desizability.The study lays the foundation for the potential application of S-g-PAM in wool warp sizing.关键词
浆料/淀粉接枝聚丙烯酰胺/接枝率/pH值/黏附性能Key words
sizing agent/starch grafted polyacrylamide/grafting ratio/pH value/adhesion分类
轻工业引用本文复制引用
刘耀城,彭博,高世伟,张寻,李伟..pH值和接枝率对淀粉接枝聚丙烯酰胺浆料性能的影响[J].安徽工程大学学报,2025,40(2):48-53,6.基金项目
国家级大学生创新训练计划项目(202310363048) （202310363048）
安徽省高校优秀青年人才支持计划项目(gxyq2022024) （gxyq2022024）
科研项目制促进纺织服装类本科拔尖人才培养项目(FFBK202236,FFBK202314) （FFBK202236,FFBK202314）
