摘要
为拓展小檗碱的应用领域,对小檗碱理化性能进行研究,并将小檗碱应用于聚丙烯腈/醋酸纤维素复合纤维染色。通过正交试验对聚丙烯腈/醋酸纤维素复合纤维小檗碱染色工艺进行优化,测定了上染速率曲线和吸附等温线,并测试了染色后聚丙烯腈/醋酸纤维素复合纤维对金黄色葡萄球菌和大肠杆菌的抗菌性能。结果表明:小檗碱能溶于水,在p H值3~11范围内耐酸碱稳定性好,在120℃以下热稳定性好;小檗碱对聚丙烯腈/醋酸纤维素复合纤维染色吸附等温线呈Langmuir型,小檗碱染色半染时间为15. 5 min,平衡上染百分率为97%;最佳染色工艺为:染色温度为100℃,染色保温时间为40 min,染色p H值为8;染色后聚丙烯腈/醋酸纤维素复合纤维对金黄色葡萄球菌和大肠杆菌的抑菌率均可达到92%以上。
In order to widen the application domain of berberine,the physical and chemical properties of berberine were studied. Dyeing of polyacrylonitrile/cellulose acetate composite fibers with berberine was also investigated in this research. The dyeing process of polyacrylonitrile/cellulose acetate composite fiber with berberine was optimized through the use of orthogonal test. The dyeing rate curve and adsorption isotherm were determined,and the antimicrobial activity of dyed samples against Staphylococcus aureus and Escherichia coli was tested. The results indicate that berberine can be dissolved in water,and it has good acid and alkali resistance in the p H range of 3-11 and good thermal stability below 120 ℃ . The dyeing adsorption isotherm of berberine on polyacrylonitrile/cellulose acetate composite fiber present Langmuir sorption model. The half dyeing time of berberine is 15. 5 minutes,and the percentage of equilibrium dyeing is 97%. The best dyeing condition of berberine is found to be: dyeing temperature is100 ℃, dyeing time is 40 min, dyeing pH value is 8. After dyeing, the bacteriostatic rate of polyacrylonitrile/cellulose acetate composite fiber to Staphylococcus aureus and Escherichia coli is over 92%.
作者
刘艳春
白刚
LIU Yanchun;BAI Gang(School of Textile and Apparel,Shaoxing University,Shaoxing,Zhejiang 312000,China;Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province,Shaoxing,Zhejiang 312000,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2020年第5期94-98,104,共6页
Journal of Textile Research
基金
浙江省基础公益研究计划项目(LCJ18E030002,LCF18E090006)。
关键词
小檗碱
天然染料
聚丙烯腈/醋酸纤维素复合纤维
理化性能
纤维染色
抗菌性能
berberine
natural dye
polyacrylonitrile/cellulose acetate composite fiber
physical and chemical properties
fiber dyeing
antimicrobial property
