Industrial waterborne acrylic polyurethane anticorrosive coating with heavy-duty anticorrosion and long-time weather resistance, and preparation method thereof

An acrylic polyurethane, anti-corrosion coating technology, applied in polyurea/polyurethane coatings, anti-corrosion coatings, coatings, etc., can solve the problems of long-term water resistance not meeting the requirements, poor long-term weather resistance, poor long-term chemical resistance, etc., to achieve excellent The effect of long-term weather resistance, wide application range and simple process

Active Publication Date: 2020-01-07
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

Industrial heavy-duty anti-corrosion, such as steel structures of petroleum refining and chemical equipment, storage tank anti-corrosion, bridge docks and other fields, are usually in C3 (medium)-CX (extreme) corrosive environments. The use of solvent-based acrylic polyurethane coatings is mainly because most water-based acrylic polyurethane coatings usually have poor long-term weather resistance, poor long-term chemical resistance and corrosion resistance, and long-term water resistance do not meet the requirements. raised higher demands

Method used

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  • Industrial waterborne acrylic polyurethane anticorrosive coating with heavy-duty anticorrosion and long-time weather resistance, and preparation method thereof

Examples

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Embodiment 1

[0041] This embodiment provides an industrial heavy-duty anti-corrosion long-term weather-resistant water-based acrylic polyurethane anti-corrosion coating and a manufacturing method thereof.

[0042] The steps of the manufacturing method include: mixing 0.2 parts by weight of deionized water with 0.01 parts by weight of high-efficiency high molecular weight block copolymer solution dispersant, 0.01 parts by weight of polysiloxane and polyethylene glycol hydrophobic mixture BYK in a stainless steel bucket -093 defoamer, disperse at high speed for 5 minutes; then add 0.01 parts by weight of Tinuvin 1130 benzotriazole UV absorber, 0.02 parts by weight of TINUVIN 292 light hindered amine stabilizer, 0.3 parts by weight of rutile titanium dioxide CR828, 0.3 parts by weight 1 part of wet-process sericite powder, high-speed dispersion 20mim; then grind the slurry until the fineness is less than or equal to 50μm; then stir the slurry evenly, add 0.02 parts by weight of polyether silox...

Embodiment 2

[0046] This embodiment provides an industrial heavy-duty anti-corrosion long-term weather-resistant water-based acrylic polyurethane anti-corrosion coating and a manufacturing method thereof.

[0047] The steps of the manufacturing method include: mixing 0.3 parts by weight of deionized water with 0.02 parts by weight of high-efficiency high molecular weight block copolymer solution dispersant, 0.01 parts by weight of polysiloxane and polyethylene glycol hydrophobic mixture BYK in a stainless steel bucket -093 defoamer, disperse at high speed for 5 minutes; then add 0.03 parts by weight of Tinuvin 1130 benzotriazole ultraviolet absorber, 0.03 parts by weight of TINUVIN 292 light hindered amine stabilizer, 0.3 parts by weight of rutile titanium dioxide CR828, 0.3 parts by weight 1 part of wet-process sericite powder, high-speed dispersion 20mim; then grind the slurry until the fineness is less than or equal to 50μm; then stir the slurry evenly, add 0.02 parts by weight of polyet...

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Abstract

The invention discloses an industrial waterborne acrylic polyurethane anticorrosive coating with heavy-duty anticorrosion and long-time weather resistance, and a preparation method thereof. After undergoing artificial accelerated aging for 3000 h, the industrial waterborne acrylic polyurethane anticorrosive coating with heavy-duty anticorrosion does not blister, crack or fall off, and is pulverized at the first level, discolored at the first level and delustered at the first level, the acid resistance (50 g / L H2SO4) within 240 h is not abnormal, the alkali resistance (20 g / L NaOH) within 240 his not abnormal, the salt water resistance (3% NaCl) within 500 h is not abnormal, and a neutral salt spray resistance test is carried out for 2000h without bubbling, rusting and falling off. The coating has good physical and mechanical properties and good construction adaptability. The performances of the coating meet index requirements of solvent-based industrial heavy-duty anticorrosive polyurethane acrylate coatings, are better than those of common waterborne polyurethane acrylate coatings, meets the anticorrosive performance requirements of industrial heavy-duty anticorrosive finish paints, and has broad application prospects.

Description

technical field [0001] The invention relates to an industrial heavy-duty anti-corrosion long-acting weather-resistant water-based acrylic polyurethane anti-corrosion coating and a preparation method thereof, belonging to the technical field of anti-corrosion coatings. Background technique [0002] With the emphasis on environmental protection and construction safety, the emission limits of volatile organic compounds (VOC) in solvent-based coatings have become increasingly stringent, and VOC prevention and control and comprehensive treatment have reached unprecedented heights. The development of environmentally friendly coatings is an inevitable choice for my country's coatings industry to achieve product transformation and upgrading and maintain sustainable development. Water-based coatings are safe, environmentally friendly, and easy to construct. Water-based coatings are an important way to develop friendly coatings. Industrial heavy-duty anti-corrosion, such as steel stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C08G18/62C08G18/63
CPCC08G18/6216C08G18/633C09D5/08C09D175/04
Inventor 崔灿灿石家烽郭晓军韩忠智孙肇兴王磊丁超李石刘杨宇段绍明林竹
Owner BC P INC CHINA NAT PETROLEUM CORP
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