湿法水刺可分散材料的结构与性能及其发展趋势

摘要

针对现有一次性湿纸巾使用后不可降解,且丢入抽水马桶易堵塞城市管道等难题,从制备工艺、纤维构成、材料属性与用途等角度阐述新型可分散可降解湿法成网水力缠结湿纸巾基材,同时比较分析该材料结构特征及其使用性能(湿强,分散和手感).结果表明:材料由长短纤维缠绕抱合构成,具有非织造材料与纸二者属性,长纤维(短切再生纤维素纤维)缠绕抱合作为纤维增强影响着材料的湿强和分散性,材料手感与梳理水刺材料接近.最后对该材料发展趋势,从短切纤维优化、辅助增强体应用与设备工艺改进等角度进行系统阐述.%In order to solve the problems of difficult degradation of disposable moist wipes after use and easy blockage of the drainage pipe , the new dispersible and biodegradable wetlaid/hydroentanglement materials for moist wipes were introduced in terms of preparation technology , fiber composition , material attributes and application .Meanwhile , the material structure characteristics and properties ( wet strength , dispersion and handling ) were compared and analyzed .The results show that the material composed of long and short fiber entanglements has the attributes of both nonwoven and paper .Moreover, long fiber ( short cut regenerated cellulose ) entanglements as fiber reinforcement influence the wet strength and dispersibility of the material , and the material hand ling is close to the carding/hydroentanglement nonwoven.Finally, the development trend of materials , including reinforced fiber optimization , application of auxiliary reinforcement and equipment process improvement , were systematically expounded.