季铵盐壳聚糖/水性聚氨酯共混膜的制备及防水透湿性能

The preparation of blend membrane about quaternary ammonium salt of chitosan/waterborne polyurethane and its waterproof and breathable properties

将季铵盐壳聚糖(HACC)与水性聚氨酯(WPU)进行共混,对共混膜进行了耐静水压、透湿量性能测试.讨论了HACC用量、共混时间、烘干温度对共混膜防水透湿性能的影响.结果表明,当HACC用量10%～15%,共混时间15～20min,烘干温度100～110℃时,制备的共混膜具有良好的防水透湿性能及共混性能.

The quaternary ammonium salt of chitosan（HACC） and waterborne polyurethane（WPU） is blende,and the performance about the blend membrane which hydrostatic pressure and water vapor permeability are tested.The effections of the amount of HACC,blending time,drying temperature on the waterproof and breathable performance of the blend membrane are discussed.The results show that the blend membrane with good waterproof,breathable and blend performance when its preparation in the amount of HACC is 10%~15%,blending time is 15~20min,drying temperature is 100~110℃.