超细氧化炭黑原液着色黏胶纤维的结构与性能

Structure and properties of spun-dyed viscose fiber by ultrafine oxidized carbon black

为探究超细氧化炭黑对原液着色黏胶纤维结构和性能的影响,利用超细氧化炭黑,采用原液着色技术制备了原液着色黏胶纤维。借助扫描电子显微镜、透射电子显微镜、热重分析仪、和X射线衍射仪研究了原液着色黏胶纤维的结构与性能。结果表明:当超细氧化炭黑质量分数小于等于3%时,超细氧化炭黑在黏胶纤维内分布均匀,纤维表面较光滑,且断面结构致密;超细氧化炭黑提高了黏胶纤维的热稳定性、结晶度和力学性能,当炭黑质量分数为3%时,纤维的强度和断裂伸长率分别为2.56 cN/dtex和21.5%;原液着色黏胶纤维具有良好的耐溶剂迁移性能和颜色性能,当超细氧化炭黑质量分数为3%时,L值为13.33,摩擦、水洗色牢度均大于3级。

To investigate the effect of carbon black on the structure and properties of spun-dyed viscose fibers,spun-dyed viscose fibers was prepared by dope dyeing using ultrafine oxidized carbon black.The structure and properties of spun-dyed viscose fibers was investigated by means of scanning electron microscopy,transmission electron microscopy,thermogravimetric analyzer and X-ray diffractometry.The results show that when the content of ultrafine oxidized carbon black is less than or equal to 3%,ultrafine oxidized carbon black is homogenously distributed within the spun-dyed viscose fiber matrix.The fiber surface is considerably smooth,and the cross-section is dense.The addition of ultrafine oxidized carbon black improves the thermal stability,crystallinity and mechanical properties of the viscose fibers.When the content of carbon black is 3%,the strength and elongation at break of the fiber are 2.56 cN/dtex and 21.5%,respectively.Moreover,the spun-dyed viscose fiber has good migration resistance of solvents and color performance.When the content of ultrafine oxidized carbon black is 3%,the L value is 13.33,and the level of color fastness to rubbing and washing is greater than 3.