High thermal conductivity, vacuum resistance, high temperature resistance and anti-corrosion coating

Abstract

The invention relates to a high-heat-conductivity vacuum-tolerant high-temperature-tolerant anticorrosion coating and belongs to the technical field of macromolecular special engineering plastic; the high-heat-conductivity vacuum-tolerant high-temperature-tolerant anticorrosion coating comprises a bottom coating and a surface coating; the bottom coating is prepared from, by applying, by weight, 20-40% of PEKK (polyetherketoneketone) superfine powder, 0-10% of a cosolvent, 1-10% of tackified glue, 0.01-1% of pigment-filler, 0.5-3% of a surfactant, 0.5-3% of a defoaming agent, and 0-2% of a leveling agent; the surface coating is prepared from, by applying, by weight, 86-98.5% of PFA (perfluoroalkoxy alkane) fine powder, 0-10% of PPS (polyphenylene sulfide) micropowder, 1-3% of diamond micropowder, and 0.5-1% of hydrophilic silicon dioxide. The high-heat-conductivity vacuum-tolerant high-temperature-tolerant anticorrosion coating is very suitable for application in the field of high-temperature-tolerant anticorrosion coating requiring heat transfer, particularly high-heat-conductivity high-temperature-tolerant anticorrosion application for thin-walled devices, and has the advantages of high binding force, surface smoothness, and good heat conductivity.

Description

technical field [0001] The invention relates to a highly heat-conductive, vacuum-resistant, high-temperature-resistant anti-corrosion coating, which belongs to the technical field of polymer special engineering plastics. Background technique [0002] Polyether ketone ketone (PEKK), as a high-performance thermoplastic engineering plastic, has excellent heat resistance, rigidity, mechanical properties and wear resistance, and is widely used in national defense, aerospace, electronic information, automobile manufacturing, petrochemical , medical and health, household appliances, automobile manufacturing and other fields. At present, when polyether ketone ketone is used as a coating, it also has many excellent properties, such as strong adhesion to the substrate, wear resistance, scratch resistance, high hardness, excellent chemical resistance, good non-adhesion, resistance High thermal performance, very suitable for non-stick, high temperature resistance, anti-corrosion and co...

AI Technical Summary

Problems solved by technology

However, there are also many problems when using the fluororesin coating of the primer coating: when subjected to heat, humidity, corrosion or similar erosion for many times, the coating will gradually fail, and the gap between the top coat and the base coat, the middle Delamination can occur between the base coat and the base coat, within the base coat, or between the base coat and the substrate

At the same time, fluorocarbon coatings still have disadvantages such as poor wear resistance, low hardness, and poor high temperature resistance.

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