棉秆皮纤维的草酸软化处理工艺

Softening treatment of cotton-straw bast fibers by oxalic acid

改进棉秆皮纤维在纺织中的应用,利用草酸对棉秆皮纤维进行软化处理。采用正交试验,并结合直观分析与方差分析,得到试验因素对棉秆皮纤维可挠度的影响程度以及棉秆皮纤维软化处理的最佳工艺参数。在最佳工艺参数下,棉秆皮纤维可挠度为2.55捻/(m·tex),断裂强度为3.13 c N/dtex;在显著水平α=0.01,焙烘温度对处理后棉秆皮纤维可挠度有显著影响。通过D/MAX-2400型X射线衍射分析仪对棉秆皮纤维测试与相关分析计算,得到软化处理后棉秆皮纤维的结晶度为64.9%,小于未处理棉秆皮纤维的结晶度。

Oxalic acid was used for the softening of cotton-straw bast fiber so as to improve the fibers＇ textile application. By orthogonal experiment and intuitive analysis and variance analysis methods,the influence degree of experimental factors on the flexibility of cotton-straw bast fiber and the optimum parameters of the fiber softening treatment were obtained. Under the optimum parameters,the flexibility of. cotton-straw bast fiber was 2. 55 twist /（ m·tex） and the strength of the fiber was 3. 13 c N / dtex. At significance level α of 0. 01,curing temperature played significant influence on the fiber flexibility.Based on X-ray diffraction analysis on D / MAX-2400 and related calculations,it was shown that the crystallinity of the treated fibers was 64. 9%,which was less than that of untreated fibers.