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Synthetic method for corrosion-resistant water-based coating

A technology of water-based paint and synthesis method, applied in anti-corrosion paint, coating and other directions, can solve the problems of poor anti-settling performance, poor anti-corrosion performance, single protective performance, etc., and achieve low cost, strong corrosion resistance and anti-settling performance. Good results

Inactive Publication Date: 2018-05-04
安徽科邦树脂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water-based coatings still have the disadvantages of poor corrosion resistance, poor anti-sedimentation performance, low coating film strength, poor peelability and single protective performance.

Method used

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  • Synthetic method for corrosion-resistant water-based coating
  • Synthetic method for corrosion-resistant water-based coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of synthetic method of corrosion-resistant water-based paint:

[0036] (1) Heat and melt the acrylic resin, add polyvinyl alcohol, and stir for 25 minutes. After the polyvinyl alcohol is completely dissolved, add water into the stirring tank and heat to 95°C. The stirring speed is 480r / min, and stir for 1.5 hours;

[0037] (2) Add defoamer and anti-settling additive, stir for 1.5 hours, and cool down to 38°C;

[0038] (3) Add sodium dodecylsulfonate and dioctyl ester, and continue to stir for 1.7 hours;

[0039] (4) Stop stirring, add nano-silica in the reactor, and ultrasonically vibrate for 2 hours;

[0040] (5) Heat the reactor to 80°C for 3.4 hours, add diatomaceous earth, triethanolamine and silane coupling agent again, keep the temperature for 4 hours, close the reactor, add phosphate, and stir for 1 hour to obtain corrosion-resistant water coating.

[0041] The anti-corrosion water-based paint in the anti-corrosion water-based paint synthesis method com...

Embodiment 2

[0044] A kind of synthetic method of corrosion-resistant water-based paint:

[0045] (1) After heating and melting the acrylic resin, add polyvinyl alcohol and stir for 25 minutes. After the polyvinyl alcohol is completely dissolved, add water into the stirring tank and heat to 95°C. The stirring speed is 450r / min, and stir for 1.5 hours;

[0046] (2) Add defoamer and anti-settling additive, stir for 1.5 hours, and cool down to 35°C;

[0047] (3) Add sodium dodecylsulfonate and dioctyl ester, and continue to stir for 1.5 hours;

[0048] (4) Stop stirring, add nano-silica in the reactor, and ultrasonically vibrate for 2 hours;

[0049] (5) Heat the reactor to 85°C for 3.5 hours, add diatomaceous earth, triethanolamine and silane coupling agent again, keep the temperature for 4.2 hours, close the reactor, add phosphate, and stir for 1 hour to obtain corrosion-resistant water coating.

[0050] The corrosion-resistant water-based paint in the anti-corrosion water-based paint sy...

Embodiment 3

[0053] A kind of synthetic method of corrosion-resistant water-based paint:

[0054] (1) After heating and melting the acrylic resin, add polyvinyl alcohol and stir for 25 minutes. After the polyvinyl alcohol is completely dissolved, add water into the stirring tank and heat to 95°C. The stirring speed is 500r / min, and stir for 1.5 hours;

[0055] (2) Add defoamer and anti-settling additive, stir for 1.5 hours, and cool down to 45°C;

[0056] (3) Add sodium dodecylsulfonate and dioctyl ester, and continue to stir for 2 hours;

[0057] (4) Stop stirring, add nano-silica in the reactor, and ultrasonically vibrate for 2 hours;

[0058] (5) Heat the reactor to 90°C for 3 hours, then add diatomaceous earth, triethanolamine, and silane coupling agent again, keep the temperature for 4.5 hours, close the reactor, add phosphate, and stir for 1 hour to obtain corrosion-resistant water coating.

[0059] The anti-corrosion water-based paint in the anti-corrosion water-based paint synthes...

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Abstract

The invention discloses a synthetic method for a corrosion-resistant water-based coating. The method comprises following steps that acrylic resin is heated and melted, then polyvinyl alcohol is addedinto the acrylic resin, stirring is carried out for 25-30 minutes, water is added into a stirring kettle and is heated to 95-100 DEG C after the polyvinyl alcohol is completely dissolved, the stirringspeed is 450-500r / min, and stirring is carried out for 1-1.5 hours; a defoaming agent is added; sodium dodecyl sulfate and dioctyl phthalate are added, and stirring is continuously carried out for 1.5-2 hours; stirring is stopped, and nano-silicon dioxide is added into a reaction kettle; and the reaction kettle is heated to 80-90 DEG C, the constant temperature is kept for 3-3.5 hours, then diatomaceous earth, triethanolamine and a silane coupling agent are added again, the reaction kettle is closed, phosphate is added, and stirring is carried out for 1-1.5 hours so as to obtain the corrosion-resistant water-based coating. The synthetic method for the corrosion-resistant water-based coating has the advantages of being simple, easy to operate, low in cost, economical, environmentally friendly, suitable for coating of all industries and wide in application range, the corrosion-resistant water-based coating prepared by the method has good acid and alkali resistance, and a coating film ishigh in corrosion resistance and good in anti-settling property.

Description

technical field [0001] The invention relates to the technical field of water-based paints, in particular to a method for synthesizing anti-corrosion water-based paints. Background technique [0002] Since the 1990s, the solvent-based coatings, paints and adhesives industry has gradually shifted from traditional varieties with high pollution, high energy consumption and extreme dependence on petroleum industry products to environmentally friendly, resource and energy-saving products. Varieties continue to emerge, among which the water-based coating and water-based adhesive industries have made great progress. Water-based coatings have the advantages of low price, safe use, saving resources and energy, reducing environmental pollution and public hazards, etc., so it has become the main direction of the current development of the coatings industry. [0003] In order to prevent the materials or semi-products exposed to the atmosphere from being polluted, corroded and damaged, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D129/04C09D5/08C09D7/61C09D7/63
CPCC09D133/04C08K2201/011C09D5/08C08L29/04C08K13/02C08K3/36C08K3/34C08K5/17
Inventor 袁振洲
Owner 安徽科邦树脂科技有限公司
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