▎ 摘　　要

NOVELTY - Preparation of flame-retardant rice paper with fire warning function comprise (i) dispersing carbon-based nano-material uniformly in the water/chitosan solution to obtain a positively charged carbon-based nano-dispersion liquid, which is denoted as solution A; (ii) dispersing the carbon-based nano-material evenly in the water/flame retardant solution to obtain a negatively charged flame-retardant carbon-based nano-dispersion liquid, denoted as solution B; (iii) soaking/spraying the rice paper with solution A and solution B in sequence, and repeating 3-100 times to prepare flame retardant rice paper; and (iv) soaking/spraying flame-retardant rice paper with a dispersion containing odor-responsive nanomaterials, and drying. USE - The method is useful for preparing flame-retardant rice paper with fire warning function. ADVANTAGE - The flame-retardant rice paper not only can realize the change of the resistance with the external temperature, but also can monitor the change in the smell in real time, and realizes the ultra-fast and ultra-early fire early warning of flame-resistant rice paper. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for flame-retardant rice paper with fire warning function.