Patent ID: 11945957
Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A water based fabrication method of forming an amino silane functionalized superhydrophobic coating composition wherein said method includes chemical modification and functionalization of cellulose nanofiber by a wet chemical process in an aqueous medium free of any organic solvent, said method comprising the steps of:
a. dispersing a hydrophilic cellulose nanofiber in an aqueous medium to obtain a dispersed hydrophilic cellulose nanofiber in an aqueous medium,
b. mixing the dispersed hydrophilic cellulose nanofiber in an aqueous medium with 1H,1H,2H,2H-perfluorooctyltriethoxysilane and 3-(2-aminoethylamino)propyltrimethoxysilane, and
c. Vigorous stirring for 6-7 hours,
wherein the steps are performed under room temperature and ambient conditions.