In this paper, the technological conditions of producing water-soluble sulfur blue were studied and optimized, and the water-soluble sulfur blue with better strength, color and solubility than similar products was prepared.
Study on thermal stability of ACgf0 10066 polymerizable anthraquinone dye
The semi-empirical AMI program in MOPAC software package is used to optimize the spatial configuration of anthraquinone dye monomer and calculate the bond order of each chemical bond. Due to the influence of two carbonyl groups, the molecular ring of anthraquinone does not show aromaticity. The single bond in the central ring and the N-C bond between imino group and alkyl group show weak bond sequence, which may be broken first in the process of high temperature thermal decomposition. The thermogravimetric analysis curve confirmed the thermal decomposition path.
Synthesis and application of ACgf0 10067 orange dye for p-benzenesulfonyl alkylamine azo -2- naphthol polypropylene fiber
In this paper, the orange dyes p-benzenesulfonyl n-butylamine azo-2- naphthol, p-benzenesulfonyl n-octylamine azo -2- naphthol, p-benzenesulfonyl n-dodecylamine azo -2- naphthol and p-benzenesulfonyl n-octadecylamine azo -2- naphthol for polypropylene fiber were prepared by coupling p-benzenesulfonyl alkylamine diazonium salt with 2-naphthol, and their melting points were 187.6℃ and/kloc, respectively. The thermal decomposition points are 309.5℃, 302.5℃, 262.65438 0℃ and 265438 05.8℃ respectively. The maximum absorption wavelengths are 480.2 nm, 480.2 nm, 480.0 nm and 480.0 nm, respectively. Under this dyeing condition, after dyeing 120 minutes, the dye uptake of four dyes on polypropylene fiber is 5 1. 1%, 54.0%, 55.9% and 57.9% respectively.