摘要
中草药PMFT的藤中含有较高比例的纤维素成分,为开发利用PMFT藤韧皮纤维资源,探索采用预氧、碱煮工艺制取纤维。以残胶率和残余木质素为衡量指标,在预氧工艺和碱煮工艺单因子试验基础上进行正交试验,探索得出较优的纤维制取工艺。研究结果表明,各因素对脱胶效果影响的显著程度为碱煮时间﹥碱煮浓度﹥预氧浓度﹥预氧时间。较优的预氧工艺参数为:H2O2浓度8～12 g/L,温度30℃～60℃,pH值为9,时间2～3 h;较优的碱煮工艺参数为:NaOH浓度12～16 g/L,亚硫酸钠用量2%,多聚磷酸钠用量3%,时间2～3 h。采用优化工艺所制得纤维的残胶率和残余木质素分别为2.03%和1.37%,纤维的平均长度和直径分别为10.5 mm和11.85μm。
As a traditional Chinese medical plant, there is a high proportion of cellulose in the rattan of PMFT. In order to develop the PMFT bast fiber, the pre-oxidizing and alkali-boiling processes were explored to refine the fiber. Taking the residual gum content and residual lignin content as the measurable indexes, an optimized refining process has been obtained through the orthognnal experiment on the basis of single-factor trial of pre-oxidizing and alkali-boiling processes. The result shows that the significant effective factors affecting the degumming are alkali-boiling duration 〉 alkali concentration 〉 peroxide concentration 〉 pre-oxidizing duration. The better processing parameters of pre-oxidizing process are that concentration of H20 is 8 - 12g/L, temperature is 30℃ -60℃, pH is 9, processing duration is 1 - 3h. The better processing parameters of pre-oxidizing process are that concentration of NaOH is 12 - 16g/L, the amount of sodium sulfite and sodium polyphosphate are 2% and 3% respectively, processing duration is 2 - 3h. The PMFT bast fiber＇ s residual gum content and residual lignin content are 2.03% and 1.37% respectively. The mean length and fineness of the degummed fiber are 10.5mm and 11.85μm respectively.
出处
《上海纺织科技》
北大核心
2013年第5期29-32,共4页
Shanghai Textile Science & Technology
关键词
韧皮纤维
预氧化
残胶率
工艺
正交试验
bast fibre
preliminary treatment in oxidizing
alkali-boiling
residual sericin
process
orthogonal tests
