摘要
将胶原蛋白与聚乙烯醇(PVA)进行共混纺丝,获得了胶原蛋白/PVA复合纤维;研究了胶原蛋白/PVA复合纤维中胶原蛋白含量和染色工艺对复合纤维酸性染料上染的影响;借助紫外可见分光光度计、扫描电镜、纤维电子强力仪等对复合纤维的上染率、截面形貌、力学性能、热水收缩性能等进行了表征。结果表明:胶原蛋白/PVA复合纤维中胶原蛋白/PVA质量比为3:7,酸性大红GR相对纤维质量分数为3%,浴比1:50,硫酸钠相对纤维质量分数为3%,冰乙酸质量浓度4.83 g/L,染色时间15 min时,复合纤维的上染率达到最大约80%;染色使复合纤维收缩且内部出现缺陷,导致其断裂强度、初始模量下降,但复合纤维的断裂强度、初始模量分别在1.9,44 cN/dtex以上,纤维的水中软化点为92℃,满足使用要求。
Collagen/polyvinyl alcohol （PVA） composite fiber was prepared by blend spinning collagen and PVA. The effects of collagen content and dyeing process on the dyeing behavior of the composite fiber for acid dyestuff were studied. The dye up-take, cross section morphology, mechanical properties and hot water shrinkage of the composite fiber were characterized with ultraviolet spectrophotometer, scanning electron microscope, fiber electronic tensile strength tester. The results showed that the collagen/ PVA compoite fiber with eollagen-and-PVA mass ratio of 3 ： 7 had the maximal dye up-take about 80% when the dyeing conditions were as followed： 3% Acid Brilliant Scarlet GR dye stuff by mass fraction based on the fiber, bath ratio 1 ： 50, 3% Na2SO4 by mass fraction, 4.83 g/L glacial acetic acid by mass concentration, dyeing time 15 min. Dyeing process caused the shrinkage and some flaws in the fiber, which made the breaking strength and initial modulus of the fiber decrease, but not less than 1.9 and 44 cN/dtex, respectively. The softening point in water of the fiber was 92 ℃, satisfying the application requirement.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2011年第6期1-5,共5页
China Synthetic Fiber Industry
基金
高等学校博士学科点专项科研基金(2009018112008)
