▎ 摘　　要

NOVELTY - The utility model claims a self-heating composite floor, comprising a floor main body, the floor main body is composed of a wear-resistant layer, a decorative layer, a base layer, a balance layer, a first insulating layer, a heating layer, a second insulating layer; an insulating layer and a protective layer; the heating layer is set at the bottom end of the first insulating layer; the inner part of the first insulating layer is provided with a polybenzimidazole fibre. The utility model uses the setting of the polybenzimidazole fibre; the polybenzimidazole fibre has outstanding radiation resistance to the ray and neutron flow; at the same time, the polybenzimidazole fibre has good high temperature resistance, so that the polybenzimidazole fibre is located above the heating layer; absorbing the radiation generated when the graphene heating material is working; at the same time, the high temperature resistant polybenzimidazole fibre will not denature after heating; the service life is longer; it improves the safety of the self-heating composite floor when using.