▎ 摘　　要

NOVELTY - A functionalized graphene oxide is prepared by mixing diamine with first polar solvent to prepare diamine solution, dispersing graphene oxide to obtain graphene oxide dispersion, heating, preserving temperature and reacting under stirring and/or ultrasonic condition to obtain solution A, mixing unsaturated fatty acid with second polar solvent, adding to solution A, processing, preserving temperature and reacting under stirring and/or ultrasonic condition, cooling, and solid-liquid separating. USE - Method for preparing functionalized graphene oxide (claimed) used for natural rubber latex. ADVANTAGE - The product improves mechanical property and barrier property of latex product. DETAILED DESCRIPTION - A functionalized graphene oxide is prepared by taking diamine and graphene oxide at ratio of 0.1-10 ml:1 g or 0.1-10 g:1 g, mixing diamine with first polar solvent to prepare diamine solution, dispersing graphene oxide to obtain graphene oxide dispersion, heating to greater than or equal to 50 degrees C, preserving temperature and reacting under stirring and/or ultrasonic condition for greater than or equal to 2 hours to obtain solution A, mixing unsaturated fatty acid with second polar solvent to prepare solution, adding to solution A, processing at greater than or equal to 50 degrees C, preserving temperature and reacting under stirring and/or ultrasonic condition for greater than or equal to 2 hours to obtain material liquid B, cooling, and solid-liquid separating. An INDEPENDENT CLAIM is included for preparation of functionalized graphene oxide water dispersion comprising taking alkali metal salt with unsaturated fatty acid to prepare solution, adding functionalized graphene oxide, and dispersing.