罗布麻化学脱胶预处理方法筛选

The Chemical Degumming Pretreatment Method Available to the Apocynum Venetum

为了筛选适合罗布麻化学脱胶的预处理方法,利用数学的方法对4种不同预处理方法与二煮法相结合的工艺所得到的精干麻的各项指标进行处理,结果表明:预尿氧处理是适合罗布麻化学脱胶的较好的预处理方法。并对预尿氧处理得到的精干麻与其他3种预处理方法得到的精干麻指标进行了对比,表明前者得到的精干麻指标即经预尿氧处理所得到的精干麻细度为3.34dtex,残胶率为3.77%,断裂强度为10.8cN/tex,残余木质素率为1.33%,断裂伸长率为4.38%,其综合指标要好于其他3种预处理方法得到的精干麻指标,且可节省时间。

In order to screen a suitable pretreatment method for apocynum venetum, various indexes of the degummed apocynum venetum pretreated with four kinds of pretreatment methods and scoured two times are mathematically dealt with. The result shows that pre-impregnated with hydrogen peroxide and urea is suitable for the pretreatment of chemically degumed apocynum venetum. The contrast between the indexes of the degummed apocynum venetum pre-impregnated with hydroyen peroxide and urea and ones with other three methods shows that the former is better than the latter. The former are as follows: the fineness is 2 994 mm/mg, the residual gum 3. 77%, the breaking tenacity 10. 8%, the residual lignin 1. 33% and the breaking extension 4. 38%. And this kind of method can save time.