▎ 摘　　要

NOVELTY - First immersion liquid comprises 60-80 wt.% binder, 15-35 wt.% graphene modified mica, and 100 wt.% additive. USE - The liquid is useful for preparing packing (claimed). ADVANTAGE - The liquid: increases the heat resistance of the packing, and corrosion resistance; reduces the coefficient of friction; improves quality and service life; and saves cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for (1) preparing the first immersion liquid, comprising taking binder, graphene modified mica and additives, and uniformly mixing to obtain first impregnation liquid; and (2) preparing packing, comprising (i) subjecting the fiber to the first impregnation by using the first immersion liquid, weaving, and then drying to obtain preliminary product, and (ii) subjecting the preliminary product obtained in the step (i) to second impregnation to obtain packing.