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Preparation method of aqueous epoxy heavy anticorrosion coatings

An anti-corrosion coating, water-based epoxy resin technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings and other directions, can solve problems such as threats to the health of production and construction personnel and surrounding people, air pollution, and heavy metal poisoning in the human body. The effect of reducing VOC content, excellent anti-corrosion performance, and avoiding waste of resources

Inactive Publication Date: 2017-10-13
铜陵四通环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A large amount of organic solvents are used in traditional heavy-duty coatings. During the curing process of coatings, the volatilization of solvents will pollute the air environment and threaten the health of production and construction workers and the surrounding people.
The anti-attraction pigments commonly used in traditional coatings, such as red lead and chrome yellow, have good anti-corrosion effects, but they can easily cause heavy metal poisoning in the human body if they diffuse into the environment. Heavy-duty anti-corrosion coatings with pigments are the development direction of heavy-duty anti-corrosion coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of preparation of water-based epoxy heavy-duty anticorrosion paint, comprises steps as follows,

[0029] S1. Put MU-601 epoxy resin emulsion in a stirrer and stir, add anti-flash rust agent and silane coupling agent KH-550 in turn during stirring, and stir for 30 minutes to obtain group A solvent;

[0030] S2, SiO 2 Preparation of hollow microspheres,

[0031] b1, 0.28 parts of anhydrous CaCl 2 and 0.27 parts of Na 2 CO 3 Dissolve in deionized water respectively to make 0.05mol / L CaCl 2 solution and Na 2 CO 3 solution;

[0032] b2. Dissolve sodium carboxymethyl cellulose in deionized water to make a 2g / L solution, add it to CaCl 2 solution, stirred for 15 minutes;

[0033] b3. Under the fast stirring state of 400rpm, CaCl 2 The solution was quickly poured into Na 2 CO 3 solution, stirred for 15 minutes, stood still for 35 minutes, centrifuged, washed, vacuum dried, and ground to obtain CaCO 3 Microspheres;

[0034] b4, the CaCO 3 Disperse the micro...

Embodiment 2

[0042] A kind of preparation of water-based epoxy heavy-duty anticorrosion paint, comprises steps as follows,

[0043] S1. Put MU-601 epoxy resin emulsion in a stirrer and stir, add anti-flash rust agent and silane coupling agent KH-550 in turn during stirring, and stir for 30 minutes to obtain group A solvent;

[0044] S2, aniline modified FeOCl,

[0045] Add 1 part molar ratio to FeOCl:C 6 h 7FeOCl with N=4:1 was dispersed in 20 parts of aniline aqueous solution with a concentration of 0.2mol / L, ultrasonically dispersed for 15 minutes, left standing at 30°C for 3 days, filtered and washed, vacuum-dried at room temperature, and ground to obtain aniline-modified FeOCl;

[0046] S3. Add aniline-modified FeOCl to the solvent of group A, and ultrasonically disperse for 30 minutes to obtain the mixed solution of group A;

[0047] S4. Add CU-600 water-based epoxy resin curing agent to the mixed solution of group A, and stir for 30 minutes to obtain a water-based epoxy heavy-duty...

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Abstract

The invention discloses a preparation method of aqueous epoxy heavy anticorrosion coatings. A SiO2 hollow microsphere modified FeOCl heavy anticorrosion coating and an aniline modified FeOCl heavy anticorrosion coating are prepared by using an MU-601 epoxy resin emulsion and a CU-600 aqueous epoxy resin curing agent as film forming substances and using a flash rust inhibitor, a silane coupling agent KH-550 and an anti-settling agent as auxiliary substances. The preparation method greatly reduces the VOC content, avoids resource wastes and meets the green and environmentally-friendly development idea; the SiO2 hollow microsphere modified FeOCl heavy anticorrosion coating has the advantages of non-toxicity, environmental protection, low production cost, realization of cooperative use together with other antirust pigments, and wide development prospect; the aniline modified FeOCl heavy anticorrosion coating has the multiple heavy anticorrosion properties of a layered filler, iron oxide and polyaniline, and has excellent anticorrosion performance; and the preparation method is simple.

Description

technical field [0001] The invention relates to the preparation of a water-based epoxy heavy-duty anti-corrosion coating. Background technique [0002] Heavy-duty anti-corrosion coating is a kind of anti-corrosion coating, which belongs to the field of metal anti-corrosion, and its application range covers almost all metal structures. However, due to its strong anti-corrosion effect and long-term protection period, heavy-duty anti-corrosion coatings are mainly used in situations with high short-term maintenance costs and relatively harsh corrosive environments, such as high temperature and high humidity, water immersion, steam, and acid-base environments. Heavy-duty anti-corrosion coatings are especially widely used in marine engineering and chemical industries. For example, drilling platforms, oil pipelines, storage tanks and supporting facilities in offshore engineering all need reliable protection from heavy-duty anti-corrosion coatings. [0003] With the rapid developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/02C09D5/08C09D7/12
CPCC09D163/00C08L2205/025C09D5/024C09D5/028C09D5/084C08L63/00C08K7/26C08K5/544C08K9/04C08K3/16
Inventor 王成友李学响焦真超
Owner 铜陵四通环境科技有限公司
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