Antistatic powder coating and preparation method thereof

Abstract

The invention relates to the field of preparation methods of high polymer materials, and particularly discloses an antistatic powder coating and a preparation method thereof. The coating is prepared from a component A and a component B according to the weight percentage of 200-20: 1. wherein the component A is prepared from the following raw materials in percentage by weight: 30.0-75.0 percent of resin; 3.0-30.0% of a curing agent; 0.8-1.5% of a leveling agent; 1.0-5.0% of a coupling agent; 0.3-1.0% of a defoaming agent; 0.2-1.0% of an electricity increasing agent; 0.5-5.0% of other auxiliary agents; and 10.0-45.0% of a pigment and filler; wherein the sum of the weight percentages of the raw materials is 100%. The component B is prepared from the following raw materials in percentage by weight: 40.0-85.0 percent of a composite conductive additive; 10.0-58.0% of an organic acid modified stabilizer; 0.5-8.0% of a coupling agent; and 0.2-5.0% of a dispersing agent; wherein the sum of the weight percentages of the components is 100%. The invention also discloses a preparation method for preparing the antistatic powder coating. According to the antistatic powder coating disclosed by the invention, the application efficiency of a conductive material can be improved, the cost of the coating is reduced, and the corrosion resistance and the conductive stability of a coating layer are remarkably improved.

Description

technical field [0001] The invention relates to the field of preparation of polymer materials, in particular to an antistatic powder coating and a preparation method thereof. Background technique [0002] Antistatic powder coating is a functional coating with certain current conduction and static elimination. It has the properties of electromagnetic shielding, static elimination and corrosion resistance. It is widely used in the fields of electronic appliances, petrochemical, textile and aviation. [0003] At present, antistatic coatings are generally divided into two types: additive type and intrinsic type. The technology of intrinsic type antistatic coatings is not yet mature, and the antistatic coatings commonly used in the market are generally additive type coatings. According to the conductive infinite network chain theory of composite conductive polymer proposed by F Butch: Additive antistatic coating is to add a certain amount of conductive material to the non-conduct...

AI Technical Summary

Problems solved by technology

The invention mainly achieves the conductive effect of the coating film through internal extrusion and external addition of metal and metal oxide powder, and the volume resistivity of the prepared coating film can reach 10 4 Ω·cm, but the addition of a large amount of metal conductive materials is likely to affect the powder coating rate and decoration of the powder coating, and the material cost is also very high

[0011] To sum up, in the field of powder coating preparation, there are still many practical problems to be dealt with in the practical application of antistatic powder, and no specific solutions have been proposed.

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