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High-heat-conductivity vacuum-tolerant high-temperature-tolerant anticorrosion coating

An anti-corrosion coating and high-temperature-resistant technology, which is applied in high-temperature-resistant anti-corrosion coatings, high thermal conductivity, and vacuum-resistant fields, can solve problems such as low hardness, coating failure, and poor high-temperature resistance, and achieve strong coating adhesion, Improved corrosion resistance and good thermal conductivity

Active Publication Date: 2017-06-09
SHANDONG KAISHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • High-heat-conductivity vacuum-tolerant high-temperature-tolerant anticorrosion coating

Examples

Experimental program
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Embodiment

[0040] Sandblast the aluminum test piece, grind it with mechanical fine sandpaper, clean the aluminum test piece with ethanol and other solvents, dry the surface, hang up the processed workpiece and wait for spraying; pour the pre-prepared water-based primer into the mixing tank, and use Adjust the viscosity of the primer with water or viscosifying colloid, test the viscosity with a rotary viscometer (No. 3 rotor, 20 rpm), then stir at a low speed for about 10 minutes, pass through a 100-mesh filter cloth and vacuumize for 3-5 minutes , the air bubbles are basically removed, and put into barrels for later use; mix and stir the raw materials of the proportioning amount of the top coat with a high-speed mixer for about 10 minutes, pass through a 100-mesh vibrating screen, and pack them into bags for later use; connect compressed air, adjust the air volume and feed volume Knob to achieve the best atomization effect; Spray the paint used for the base coat evenly on the workpiece. A...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/18C09D5/08C09D7/12C09J171/10C09J101/28C09J11/04B05D1/02B05D1/06B05D7/00B05D7/24
CPCB05D1/02B05D1/06B05D7/24B05D7/576B05D2506/10B05D2518/00B05D2601/20B05D2601/22C08K3/04C08K3/36C08L2201/08C09D5/08C09D5/18C09D7/61C09D127/18C09J11/04C09J171/00C08L1/284C08K13/02C08L81/02B05D2420/01B05D2420/02
Inventor 张际亮孙庆民李光辉王荣海张泰铭黄桂青张聪聪王军王帅坡王哲张瑞光韩楠楠
Owner SHANDONG KAISHENG NEW MATERIALS
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