Synthesis and characterization of halochromic hybrid sol-gel for the development of a pH sensor fabric

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Trovato, V.^1 ; Rosace, G.^1,2 ; Colleoni, C.^1 ; Plutino, M.R.^3

University of Bergamo, Department of Engineering and Applied Sciences, Viale Marconi 5, Dalmine (Bg)

24044, Italy^1

Local Unit INSTM, Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia Dei Materiali, Firenze, Italy^2

Institute for the Study of Nanostructured Materials, ISMN - CNR, O.U. Palermo, C/o, Department of ChiBioFarAm, University of Messina, Viale F. Stagno d'Alcontres 31, Vill. S. Agata, Messina (Me)

98166, Italy^3

关键词: 3-Glycidoxypropyltrimethoxysilane;    Buffered solutions;    Reaction mechanism;    Silane precursor;    Synthesis and characterizations;    Textile fabric;    UV/ Vis spectroscopy;    Washing fastness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/7/072027/pdf
DOI  :  10.1088/1757-899X/254/7/072027

来源: IOP

【 摘 要 】

A halochromic hybrid textile for pH-sensing applications was designed by employing a non-toxic dyestuff, 7-Hydroxy-3H-phenoxazin-3-one (Resorufin), and an epoxy silane precursor, 3-glycidoxypropyltrimethoxysilane (GPTMS) through sol-gel method. The reaction mechanism and the formation of a polyethylene oxide network of GPTMS containing Resorufin were established by NMR characterization. The pH response of the hybrid halochromic system was studied by UV/Vis spectroscopy and compared with the pure Resorufin in different buffered solutions. Morphology and washing fastness of treated textile fabrics were evaluated by SEM, AFM and FT-IR analyses.