壳聚糖用于涤纶细旦复丝上浆的研究

Research on Chitosan Sizing for Fine Denier Polyester Multifilament

采用过氧化物酸性溶液复合改性处理壳聚糖粉末的方法制成壳聚糖浆液,并测试其黏度、黏附力和渗透性.通过壳聚糖浆液对涤纶细旦复丝上浆和浆丝性能的评定,表明壳聚糖液可用于涤纶细旦复丝上浆,能够增加复丝强力和耐磨性能;壳聚糖浆液在保持流动性符合上浆要求基础上,壳聚糖分子较少降解对上浆有益.

Chitosan paste was made by treating chitosan powder with acidic peroxide solution.Its viscosity,adhesion and permeability were tested.The properties of the fine denier polyester multifilament were evaluated after sizing with the chitosan paste.As a result,chitosan paste could be used to size fine denier polyester multifilament for improving the tensile strength and abrasion resistance of the filament warps.It was found that less degradation of chitosan molecule was helpful for sizing on the condition that paste was permeable.