The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-a...The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift（13 CNMR） of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.展开更多
Apocynum venetum/cotton blended fabrics have been subjected to treat with cationic polymer nanoparticles followed by dyeing with Acid Red B,and then studied for their dyeing performance and morphology.The investigatio...Apocynum venetum/cotton blended fabrics have been subjected to treat with cationic polymer nanoparticles followed by dyeing with Acid Red B,and then studied for their dyeing performance and morphology.The investigation on the effect of modification factors on the blended fabrics indicated that the 0.5 g/L nanoparticles concentration,60 min treating time,60 ℃ treating temperature and pH 6-8 are the optimum modification process to improve the dyeability of acid dye.In addition,the SEM images show that nanoparticles can be adsorbed on the surface of modified A.venetum or cotton fibers,and the two different fibers could have the same adsorption ability to Acid Red B.展开更多
文摘The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift（13 CNMR） of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.
基金supported by National Natural Science Foundation of China(No.51173086)National Key Technology R&D Program,(Nos.2014BAC13B02 and 2014BAE01B01)+1 种基金Industrialization Projects of Major Independent Innovation Achievements of Shandong Province(No.2012ZHZX1A0914)Application Basis and Cutting-edge Technology Research Project of Tianjin(No.14JCZDJC37200)
文摘Apocynum venetum/cotton blended fabrics have been subjected to treat with cationic polymer nanoparticles followed by dyeing with Acid Red B,and then studied for their dyeing performance and morphology.The investigation on the effect of modification factors on the blended fabrics indicated that the 0.5 g/L nanoparticles concentration,60 min treating time,60 ℃ treating temperature and pH 6-8 are the optimum modification process to improve the dyeability of acid dye.In addition,the SEM images show that nanoparticles can be adsorbed on the surface of modified A.venetum or cotton fibers,and the two different fibers could have the same adsorption ability to Acid Red B.
文摘为提高甲壳素/棉混纺织物的染色同色性,采用阳离子醚化剂3-氯-2羟-丙基氯化铵进行改性预处理,研究了预处理工艺条件(醚化剂、NaOH用量,处理时间及温度)对织物活性染料染色性能的影响。确定了最佳的阳离子改性工艺条件:阳离子化试剂50 g/L,氢氧化钠15 g/L,处理时间40 m in,处理温度60℃。结果表明,在该工艺条件下,甲壳素/棉混纺织物可实现活性染料一浴法染色,同色性得到提高,对抗菌性和皂洗牢度影响小。
