TY - JOUR AU - AB - CELLULOSE CHEMISTRY AND TECHNOLOGY MULTIFUNCTIONALIZATION OF A CELLULOSIC MATERIAL BY MEANS OF A MULTIPLE-STEP COATING PROCESS APPLYING ORGANOTRIALKOXYSILANES CHRISTIAN SCHRAMM and DORIAN RHOMBERG Research Institute of Textile Chemistry and Textile Physics, University Innsbruck, Höchsterstrasse 73, A-6850 Dornbirn, Austria ✉Corresponding author: Ch. Schramm, christian.schramm@uibk.ac.at Received May 20, 2020 The sol-gel process is an excellent process for coating various substrates and thus imparting new functionalities to the treated material. Cotton fabrics were finished with various silicon alkoxides: tetraethoxysilane, (3- triethoxysilylpropyl)succinic acid anhydride, and (3-glycidyloxy)propyltrimethoxysilane in a one-, two-, and three-step process, applying the pad-dry-cure method. The physico-mechanical parameters: dry crease recovery angle, tensile strength, flexural rigidity, air permeability, abrasion resistance, whiteness index (WI), and water vapor permeability of the as-prepared cotton samples were evaluated. In addition, the coated samples were analyzed by means of Fourier transform-infrared/attenuated reflection spectroscopy, thermal gravimetric analysis, and 3D laser confocal microscopy. To study the wettability, selected alkoxysilane-treated specimens were coated with octyltriethoxysilane. The impregnation with titanium tetraisopropoxide significantly increased the ultraviolet protection factor. The findings make evident that the wrinkle resistance could be improved. Keywords: polysaccharide, cotton, surface modification, sol-gel process, alkoxysilanes INTRODUCTION Cotton is a natural fiber and an important subsequent low-temperature condensation resource for TI - MULTIFUNCTIONALIZATION OF A CELLULOSIC MATERIAL BY MEANS OF A MULTIPLE-STEP COATING PROCESS APPLYING ORGANOTRIALKOXYSILANES JF - Cellulose Chemistry and Technology DO - 10.35812/cellulosechemtechnol.2020.54.97 DA - 2020-11-11 UR - https://www.deepdyve.com/lp/unpaywall/multifunctionalization-of-a-cellulosic-material-by-means-of-a-multiple-hqiWynnetn DP - DeepDyve ER -