Epoxy resin based cooling powder coating with high adhesion and manufacturing method thereof

Abstract

The invention discloses an epoxy resin based cooling powder coating with high adhesion. Bisphenol A and epichlorohydrin are used as raw materials, and carbon nanotubes are used as thermal conducting fillers, so that modified epoxy resin is obtained through in-situ polymerization, the carbon nanotubes and epoxy groups form acting force which is much larger than Van der Waals force, stress transfer between the carbon nanotubes and the epoxy groups is facilitated, the interface bonding force and compatibility between the carbon nanotubes and the epoxy groups are increased, and the storage stability of the coating is improved; additionally, chitosan, modified assistant and the like are added as reinforcing fillers, so that the stretching vibration intensity of carbon chlorine keys in composite materials is reduced, the binding force of C and Cl atoms and surrounding atoms is increased, the dispersibility of all components in the coating is improved, thus, the carbon nanotubes make full contact with the coating, and the effect of an additional physical crossing point is achieved, so that a cooling channel is formed, and heat dissipation is facilitated. The cooling coating has the advantages of high cohesion of molecules, ageing resistance and high adhesion.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to an epoxy resin-based heat-dissipating powder coating with strong adhesion and a manufacturing method thereof. Background technique [0002] With the rapid development of modern science and technology, the high frequency and high speed of electronic devices and the density and miniaturization of integrated circuits have greatly increased the total power density and calorific value of electronic devices per unit volume, thus making the cooling of electronic devices more difficult. increasingly prominent. However, the cooling capacity achieved by conventional cooling systems is greatly challenged, especially in the fields of energy, automobiles, air conditioning, agriculture, chemicals, heating, aerospace, microelectronics, information, etc. put forward higher requirements. The heat dissipation coating is a special coating that improves the heat dissipation efficiency of t...

AI Technical Summary

Problems solved by technology

However, due to the poor dispersion of carbon nanotubes in composite powder coatings and easy agglomeration, when the content of carbon nanotubes continues to increase, the performance of the composite material will deteriorate again, and the composite powder coatings prepared by using the production process and formula in this paper The function is relatively single, and the product structure is single and featureless, which cannot meet the requirements of special environments and needs to be improved