Temperature-responsive resistance sensitivity controlled by L-ascorbic acid and silane co-functionalization in flame-retardant GO network for efficient fire early-warning response

•Silane and LAA co-crosslinked GO network was prepared via a facile strategy.•The hybrid GO network shows good structure stability and improved flame retardancy.•LAA promotes thermal reduction of GO, thus providing efficient fire alarm response.•Flame-retardant mechanisms and fire alarm behaviors were discussed and clarified.