Aqueous polyurethane heat reflection coating and application thereof

A water-based polyurethane and heat-reflective technology, which is applied in polyurea/polyurethane coatings, reflective/signal coatings, coatings, etc., can solve problems such as application limitations, and achieve improved cross-linking density, improved water resistance, and good heat reflection efficiency Effect

Inactive Publication Date: 2012-07-11
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solvent-based coatings contain a large amount of solvents and toxic substances. With the development of ind

Method used

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  • Aqueous polyurethane heat reflection coating and application thereof
  • Aqueous polyurethane heat reflection coating and application thereof
  • Aqueous polyurethane heat reflection coating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The proportion of component A in parts by weight is:

[0053] 10 parts of water, 100 parts of water-based polyurethane PUA emulsion, 17.2 parts of titanium dioxide, 4.5 parts of organic perylene black, 10 parts of mica powder, 5 parts of fumed silica, 5 parts of hollow ceramic beads, 0.32 parts of Disponer W-18, DeuAdd MB -11 1.5 parts, NAZIA FA 379 1.5 parts, RHEOLATE 125 3.2 parts, Levaslip W-461 1.5 parts.

[0054] The second component is: 11 parts of the hydrophilic curing agent BAYER 2655 containing -NCO.

[0055] The paint mixing process is as follows: Mix components A and B and water in proportion, stir evenly at 300-500 rpm, adjust the viscosity for 40 seconds (coating -4), and make the board by spraying or brushing. Thickness: 40um primer and 40um topcoat.

Embodiment 2

[0057] The proportion of component A in parts by weight is:

[0058] 0 parts of water, 100 parts of water-based polyurethane PUD emulsion, 17.8 parts of titanium dioxide, 3.4 parts of iron oxide red, 18 parts of iron oxide yellow, 20 parts of phthalocyanine blue, 10 parts of barium sulfate, 10 parts of hollow glass beads, Disponer W-19 0.32 parts, Dispenor W-519 1.7 parts, Deform W-052 0.32 parts, DeuAdd MB-16 1.5 parts, NAZIA FA 579 1.5 parts, BENTONE DY 1.5 parts.

[0059] Part B: Coupling agent KH-560, the addition amount is 2% of the total weight of Part A.

[0060] The paint mixing process is the same as in Example 1.

Embodiment 3

[0062] The proportion of component A in parts by weight is:

[0063] 0 parts of water, 100 parts of water-based polyurethane emulsion, 17.1 parts of titanium dioxide, 6.4 parts of permanent red, 0.8 parts of iron oxide yellow, 1.6 parts of phthalocyanine green, 1 part of phthalocyanine blue, 0.32 parts of Disponer W-19, Disponer W-519 9 Parts, 5 parts of fumed silica, 5 parts of power plant float beads, 10 parts of barium sulfate, 0.3 parts of Deform W-092, 3.2 parts of RHEOLATE125, 1.5 parts of DeuAdd MB-11, 5 parts of Tamol165.

[0064] Part B: 11 parts of the hydrophilic curing agent BAYER 3100 containing -NCO.

[0065] The paint mixing process is the same as in Example 1.

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Abstract

The invention relates to an aqueous polyurethane heat reflection coating and an application of the aqueous polyurethane heat reflection coating. The coating comprises a component A and a component B, wherein the component A comprises water, an aqueous polyurethane emulsion, a heat reflection pigment, a function filler, a wetting dispersant, a basis material wetting agent, a rheological agent, a defoaming agent, a thickening agent and a filler; and the component B comprises an isocyanate curing agent or a silane coupling agent. The aqueous polyurethane heat reflection coating has features of high heat reflection efficiency, strong adhesion and good corrosion prevention effect and meets the requirements of environmental protection. The aqueous polyurethane heat reflection coating is suitable for the surfaces of the steel structure, aluminum alloy, plastic, composite material or the like.

Description

Technical field [0001] The invention relates to the field of chemical industrial coatings, in particular to a water-based polyurethane heat reflective coating and its use. Background technique [0002] The hull paint for ship steel structure has experienced several periods of phenolic hull paint, alkyd hull paint, chlorinated rubber hull paint, acrylic hull paint, and polyurethane hull paint. The paint film of phenolic and alkyd coatings has poor temperature resistance and poor chemical resistance. Although its performance has been improved by phenolic modification, chlorinated rubber modification, acrylic modification and other means, it is still difficult to meet actual needs . Chlorinated rubber ship hull paint has good resistance and construction properties, but its solid content is low, and a large amount of solvents are required during construction, which seriously pollutes the environment and does not meet environmental protection requirements. [0003] In the past ten yea...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/33C09D7/12
Inventor 郭年华刘志王黎王晓薛玉华步明升赵乐
Owner MARINE CHEM RES INST
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