印染助剂2024，Vol.41Issue(6)：21-26,6.
甲壳质衍生物共混改性水性聚氨酯
Blending modification of water-based polyurethane with chitosan derivatives
摘要
Abstract
Polyester 218,polyether 310,IPDI,DMBA were used as the main raw materials to synthesize water-based polyurethane,and a series of mass concentration gradient chitosan(CS)or chitooligosaccharide(COS)were blended with water-based polyurethane(WPU)emulsion,the experimental results showed that because the relative molecular mass of CS was too large,even if the concentration and pH value of CS solu-tion and WPU emulsion were adjusted,the two cannot be blended stably.However,a stable emulsion could be obtained by blending COS with a lower degree of polymerization and WPU.After investigation,it could be known that the critical mass concentration of COS solution was 0.4 mg/mL,and the critical mass ratio of COS to WPU emulsion was 2∶8.The test results showed that the particle size,antibacterial property and water re-sistance of the mixed emulsion were improved after blending and modification,and it had almost no effect on the stability of the emulsion and the thermal stability of the film.关键词
壳聚糖/壳寡糖/水性聚氨酯/共混/静电自组装Key words
chitosan/chitooligosaccharide/water-based polyurethane/blending/electrostatic self as-sembly分类
化学化工引用本文复制引用
袁照森,任燕,黄昊,王高阳,孔雨涛,张鑫卿..甲壳质衍生物共混改性水性聚氨酯[J].印染助剂,2024,41(6):21-26,6.基金项目
2023年度陕西省自然科学基础研究计划一般项目(面上项目)(2023-JC-YB-824) （面上项目）
2022年度陕西省教育厅重点科学研究计划项目协同创新中心项目(22JY022) （22JY022）
国家先进印染技术创新中心科研基金项目(ZJ2021A11) （ZJ2021A11）
