Disperse Azo Dyes-silica Hybrids for Modifying Cellulose Fabrics by Sol-gel Processes

作者：Raditoiu Alina; Amariutei Viorica; Raditoiu Valentin^*; Ghiurea Marius; Nicolae Cristian Andi; Wagner Luminita Eugenia

来源：Revista de Chimie, 2012, 63(6): 612-617.

• silica hybrids
• cellulose materials
• azo dyes
• sol-gel
• coatings

The paper presents disperse azo dyes-silica hybrids deposited as coating materials on the surface of cellulose fibres by sol-gel processes. Coatings are characterised by FT-IR spectrometry, UV-VIS reflectance spectra and colour measurements in CIELAB system, scanning electron microscopy (SEM) and thermal analysis (TA). Structure-properties relationships of the obtained coatings are discussed with respect to the structure of azo dyes embedded in the silica networks. The effect of functional groups grafted on the structure of disperse dyes was studied in relationship with leaching properties of the obtained coloured coatings.

• 出版日期2012-6