助剂DW在荨麻脱胶中的应用

Application of additive DW in nettle degumming

在苎麻化学脱胶工艺的基础上,提出利用助剂DW对荨麻进行脱胶试验。对所制取的荨麻纤维进行单因素和正交试验,经方差分析选择最佳实验方案。通过残胶率、断裂强度、单纤维长度和细度指标来判断脱胶后纤维的可纺性。得出结论如下:助剂DW可以提高荨麻的脱胶效果;最优方案为NaOH浓度19 g/L,DW助剂浓度9 g/L,碱煮时间105 min;脱胶后的纤维具有可纺性。

An additive DW is proposed to apply to nettle degumming based on traditional chemical degumming process of ramie. Thedegumming process is optimized by single factor and orthogonal experiments and variance analysis of gum residual, tensile strength, singlefiber length and fineness and spinnability of the degummed fiber. The results show that additives DW could enhance the degumming effect ofthe nettle; the optimum degumming process is NaOH concentration 19g/ L, DW concentration 9g/ L and alkali scouring for 105min; thedegummed fiber has good spinnability.