Thermal insulation polyurethane anticorrosion coating and preparation method thereof

Abstract

The embodiment of the present invention relates to a heat-insulating polyurethane anti-corrosion coating and a preparation method thereof. The coating is made by mixing the pre-prepared component A and component B at a mass ratio of 1:0.2-0.4, wherein the component Part A includes: 30% to 50% of polyurethane, 3% to 5% of epoxy resin, 5% to 8% of fluorocarbon resin, 10% to 15% of thermal insulation composite aggregate slurry, and 3% of reflective aggregate. %~5%, filler 10%~15%, pigment 1%~5%, fatty acid amide 0.5%~1%, higher fatty alcohol 0.5%~1%, dispersant 1%~2%, antirust pigment 3%~ 5%, diluent 10% ~ 15%; component B is isocyanate crosslinking agent. The heat-insulating polyurethane anti-corrosion coating provided by the embodiments of the present invention can be widely used in the surface protection of metal components, oil and gas tanks, underground pipelines, outdoor pipelines, and various outdoor equipment and containers. While providing high-performance and long-term anti-corrosion protection, It can significantly reduce cold and heat convection and radiation heat transfer, accelerate its own heat dissipation, and reduce cold and heat loads.

Description

technical field [0001] The embodiments of the present invention relate to the field of functional anti-corrosion materials, in particular to a heat-insulating polyurethane anti-corrosion coating and a preparation method thereof. Background technique [0002] Thermal insulation materials are materials widely used in engineering enclosures or thermal equipment, resistance to freezing, and convective transfer of heat flow and energy, including thermal insulation materials, cold insulation and thermal insulation materials. Developed countries have attached great importance to the research and development and application of new thermal insulation materials. With the promotion and implementation of energy-saving and environmental protection strategic emerging industries, the importance of energy conservation and emission reduction in national production has become more prominent. Thermal insulation materials are regarded as the next step. The "fifth largest energy source" after co...

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Problems solved by technology

[0006] At present, the traditional heat insulation layer includes asbestos, sandwich insulation board, insulation mortar, etc., which have poor convection and radiation heat transfer effects, thicker, high water absorption, not resistant to vibration, high cost, easy to peel off, difficult to construct, and contain harmful Solvents, VOC toxic volatile substances pollute the environment, short service life, etc. The physical properties of some types of heat insulation coatings are not ideal, etc.

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