Anti-dewing coating and preparation method thereof

Abstract

The invention relates to an anti-dewing coating, which is prepared from a component A and a component B, wherein the component A comprises 35-57 parts of fluorocarbon resin, 20-35 parts of a fluorinated ethylene propylene copolymer, 3-7 parts of nano zinc oxide, 13-17 parts of an adhesive force enhancer, 5-13 parts of titanium dioxide, 13-20 parts of a diluent, 3.5-7.5 parts of a coupling agent, 0.3-1.4 parts of a dispersing agent, 0.3-1.4 parts of leveling agent, 0.3-1.7 parts of a de-foaming agent, and 0.2-1 part of an emulsifier; and the component B comprises 37-49 parts of an isocyanate curing agent and 15-27 parts of a diluent. The anti-dewing coating disclosed by the invention has relatively excellent adhesive force and freezing resistance. The invention also discloses a preparationmethod of the anti-dewing coating, which comprises the following steps: mixing the nano zinc oxide, the dispersing agent and the coupling agent; adding fluorocarbon resin, a fluorinated ethylene propylene copolymer, titanium dioxide, a diluent, a leveling agent, an antifoaming agent and an emulsifier, and mixing; finally, mixing an adhesive force enhancer to obtain a component A; mixing the isocyanate curing agent and diluent to obtain a component B. The components are promoted to be reacted completely, so that the prepared anti-dewing coating has excellent adhesive force and frost resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-condensation coating and a preparation method thereof. Background technique [0002] At present, the equipment or cables used for power distribution are generally installed in the distribution box or switch cabinet. Condensation is formed in the switchgear, which easily causes corrosion of the exposed points of the live metal, and there are hidden dangers of short circuit and tripping. Existing companies generally use anti-condensation to solve the above problems. The liquid anti-condensation material will be immersed in various gaps and holes, and then expand and gel. Form a sealing system, so as to achieve the "airtight" sealing effect, and then achieve the purpose of preventing moisture from forming condensation. [0003] The Chinese patent with the existing application publication number CN110903713A discloses a super-hydrophobic anti-condensation coating, includin...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: Although the anti-condensation coating in the above-mentioned published patent has a long duration of superhydrophobic performance, the anti-condensation has been used for a long time in areas with large temperature differences between day and night (such as Shaanxi, Northwest China). or Gansu, the temperature difference can reach 30°C), the alternation of high temperature and low temperature will easily reduce the adhesion between the anti-condensation coating and the surface of the adhered substrate, and then the coating and the surface of the adhered substrate will be easily detached , which in turn reduces the "airtightness" effect of the coating, so that moisture will form condensation

Images