Self-regulating carbon fiber composite planar electrothermal material and manufacturing method therefor

A self-regulating far-infrared carbon fiber composite planar electrothermal material, comprising

• two reinforced insulating layers,
• two insulating layers,
• two self-regulating layers,
• a heating layer comprising an upper surface and a lower surface,
• a connecting terminal, and
• a power supply lead,
• wherein the reinforced insulating layers, the insulating layers, the self-regulating layers, and the heating layer form the self-regulating far-infrared carbon fiber composite planar electrothermal material by high-temperature hot pressing, impregnation, and curing,
• the connecting terminal is riveted on copper electrodes at two ends of the self-regulating far-infrared carbon fiber composite planar electrothermal material,
• the power supply lead is snap-fitted on a wiring groove of the connecting terminal,
• the self-regulating layers are semi-cured sheets formed by impregnating a cloth material with a self-regulating composite solvent and performing drying and hot pressing,
• the cloth material is a non-woven fabric or a fiberglass fabric,
• the non-woven fabric is a polyester fiber non-woven fabric, a polypropylene fiber non-woven fabric, a polyamide fiber non-woven fabric, a spandex fiber non-woven fabric, or an acrylic fiber non-woven fabric, and a fixed weight of the non-woven fabric is 20 to 100 g/m2;
• the fiberglass fabric is an alkali-free fiberglass fabric or a medium-alkali fiberglass fabric, and a fixed weight of the fiberglass fabric is 50 to 150 g/m2;
• the self-regulating composite solvent is an epoxy resin solution where thermoplastic polymers are uniformly dispersed, wherein the epoxy resin solution and the thermoplastic polymers are uniformly mixed at a weight ratio of 10:(0.5-1),
• the thermoplastic polymers are formed by performing airflow crushing and mixing on polypropylene powder, polyethylene powder, and polyvinylidene fluoride powder at a weight ratio of 2:(1-1.5):(0.1-0.3),
• the epoxy resin solution is formed by uniformly mixing a brominated epoxy resin solution, a 6101 epoxy resin solution, and a diluent at a weight ratio of 10:(3-6):(1-0.3), wherein the brominated epoxy resin solution is a brominated bisphenol A epoxy resin, a brominated phenolic epoxy resin, or a dibromopentaerythritol epoxy resin, and the diluent is ethyl acetate, butyl acetate, or acetone.