Carbon fiber/graphene oxide modified phenolic resin heating film and preparation method thereof

Abstract

A carbon fiber / graphene oxide modified phenolic resin heating film is characterized by comprising a carbon fiber fabric layer, an insulating layer, two graphene oxide modified phenolic resin coating layers and two protective layers; the insulating layer is 0.1-0.3 mm in thickness and evenly covers the surface of carbon fiber bundles in the carbon fiber fabric; the graphene oxide modified phenolicresin coating layers are 0.5-1.5 mm in thickness; each protective layer is 1-2 mm in thickness; the graphene oxide modified phenolic resin coating layers are made by evenly applying graphene oxide modified phenolic resin slurry to the two sides of the insulating layer-coated carbon fiber fabric. The carbon fiber / graphene oxide modified phenolic resin heating film has the advantages of good flexibility, good convenience of use and high electric heating efficiency.

Description

technical field [0001] The invention relates to a heating film and a preparation method thereof, in particular to a carbon fiber / graphene oxide modified phenolic resin heating film and a preparation method thereof. Background technique [0002] Carbon fiber is a new type of fiber material with high strength and high modulus fiber containing more than 95% carbon. It is a microcrystalline graphite material obtained by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber, and undergoing carbonization and graphitization. [0003] Graphene (Graphene) has been reported by Professor Geim of the University of Manchester in 2004, and has attracted widespread attention and great interest of scientists due to its peculiar properties. It is predicted that it is likely to cause revolutionary changes in many fields. Single-layer graphene exists in a two-dimensional crystal structure with a thickness of only 01334nm. It is the basic unit for ...

AI Technical Summary

Problems solved by technology

[0008] At present, in the floor heating system, the addition of graphene heating materials is to mix graphene into the slurry by mechanical blending. Because graphene has a large specific surface area, graphene is easy to form agglomeration under the action of van der Waals force, while graphite The conductive properties of graphene materials are largely limited by the dispersion of graphene fillers, which greatly limits the application and promotion of graphene composite electrothermal materials.

In addition, the current flexible heating elements are mostly carbon crystal plates or silver-plated materials. The flexibility of carbon crystal plates is poor, while the cost of silver-plated materials is high, and silver is toxic, so it is not conducive to its promotion and use.