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A kind of low-temperature curing type acrylic polyurethane coating and manufacturing method thereof

A technology of acrylic polyurethane and its manufacturing method, which is applied in the direction of polyurea/polyurethane coatings and coatings, and can solve the problems that acrylic polyurethane coatings cannot be cured and cannot meet actual needs, so as to improve low-temperature rapid curing performance and increase low-temperature environment reactivity , reduce the effect of chemical energy

Active Publication Date: 2018-08-10
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the existing acrylic polyurethane coatings cannot be cured at -15°C and cannot meet actual needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0122] This embodiment provides a low-temperature curing acrylic polyurethane coating and a manufacturing method thereof of the present invention. The specific manufacturing steps are as follows,

[0123] In step (1), in a stainless steel bucket, 1 part by weight of siloxane-modified hydroxyacrylic resin and 0.4 part by weight of xylene are mixed and dispersed evenly, and 0.06 part by weight of polyamide wax, 0.2 part of barite powder, After 0.25 parts by weight of feldspar and 0.5 parts by weight of zirconium-coated modified titanium dioxide, stir at a speed of 1200r / min, and stir at 50°C for 30min after the temperature of the feed liquid reaches 50°C;

[0124]Step (2), continue stirring and add 0.65 parts by weight of F524 type aliphatic polyaspartate polyurea, 0.35 parts by weight of phthalocyanine blue, 0.25 parts by weight of butyl acetate, 0.15 parts by weight of toluene, 0.09 parts by weight of organic silicon modified Polyurethane, 0.015 parts by weight of BYK-325 pol...

Embodiment 2

[0128] This embodiment provides a low-temperature curing acrylic polyurethane coating and a manufacturing method thereof of the present invention. The specific manufacturing steps are as follows,

[0129] In step (1), in a stainless steel bucket, 1 part by weight of siloxane-modified hydroxyacrylic resin and 0.2 parts by weight of xylene are mixed and dispersed evenly, and 0.03 parts by weight of polyamide wax, 0.2 parts of barite powder, After 0.2 parts by weight of feldspar and 0.1 parts by weight of zirconium-coated modified titanium dioxide, stir at a speed of 1200r / min, and stir at 50°C for 30min after the temperature of the feed liquid reaches 50°C;

[0130] Step (2), continue stirring and add 0.4 parts by weight of F524 type aliphatic polyaspartate polyurea, 0.2 parts by weight of phthalocyanine blue, 0.1 parts by weight of butyl acetate, 0.1 parts by weight of toluene, 0.05 parts by weight of organic silicon modified Polyurethane, 0.002 parts by weight of BYK-325 poly...

Embodiment 3

[0134] This embodiment provides a low-temperature curing acrylic polyurethane coating and a manufacturing method thereof of the present invention. The specific manufacturing steps are as follows,

[0135] In step (1), in a stainless steel bucket, 1 part by weight of siloxane-modified hydroxyacrylic resin and 0.5 parts by weight of xylene are mixed and dispersed evenly, and 0.15 parts by weight of polyamide wax, 0.5 parts of barite powder, After 0.6 parts by weight of feldspar and 0.8 parts by weight of zirconium-coated modified titanium dioxide, stir at a speed of 1200r / min, and stir at 50°C for 30min after the temperature of the feed liquid reaches 50°C;

[0136] Step (2), continue stirring and add 0.8 parts by weight of F524 type aliphatic polyaspartate polyurea, 0.6 parts by weight of phthalocyanine blue, 0.3 parts by weight of butyl acetate, 0.2 parts by weight of toluene, 0.15 parts by weight of organic silicon modified Polyurethane, 0.06 parts by weight of BYK-325 polye...

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Abstract

The present invention discloses a low temperature curing type acrylic polyurethane coating and a manufacturing method thereof, and belongs to the technical field of anti-corrosion coatings. The acrylic polyurethane coating comprises the following ingredients in the specified proportions: an A component comprising siloxane -modified hydroxy acrylic resin, aliphatic polyaspartic acid ester polyurea, xylene, butyl acetate, toluene, barite powder, feldspar, zircon coated modified titanium dioxide, phthalocyanine blue, organosilicone -modified polyurethane, BYK-325 polyether modified polymethylalkylsiloxane, fluoro modified polyacrylate, di (2,2, 6,6-tetramethyl-1-octyloxy-4-piperidinyl) sebate butyl acetate, a xylene solution, Zinc Isoocatanoate and polyamide wax; and a B component comprising hexamethyl diisocyanate trimer and toluene. The acrylic polyurethane coating has good low-temperature curing properties, in -15 DEG C low temperature environment, coating hard drying time is only 24h, and the low temperature curing type acrylic polyurethane coating is applicable anticorrosion engineering of vessels, storage tanks, refinery plants, bridges, docks and the like in the -15 DEG C low temperature environment, and can meet construction needs in winter.

Description

technical field [0001] The invention relates to a low-temperature curing type acrylic polyurethane coating and a manufacturing method thereof, belonging to the technical field of anti-corrosion coatings. Background technique [0002] Acrylic polyurethane coatings have been widely used in heavy anti-corrosion fields such as ships, storage tanks, refineries, bridges, and docks due to their excellent weather resistance, decoration, physical and mechanical properties, chemical medium corrosion resistance, and relatively low price. widely used. Acrylic polyurethane coating is formed by the reaction of isocyanate and acrylic resin to form a solid polymer film. However, when the ambient temperature is lower than 0°C, it is difficult for the acrylic resin and isocyanate to react chemically, making it difficult to cure the coating. In northern China, the ambient temperature in winter is lower than -15°C for 2 to 3 months. [0003] During the process of realizing the present invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/65C09D7/62C09D7/63C08G18/62C08G18/64
Inventor 段绍明张其滨郭晓军韩忠智崔灿灿张静刘浩亮李石何鱼游刘杨宇
Owner BC P INC CHINA NAT PETROLEUM CORP