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Waterborne bicomponent epoxy iron red shop primer and preparation method thereof

A technology of epoxy iron red primer and water-based epoxy resin, used in primers, epoxy resin coatings, coatings, etc., can solve the problem that the hardness of the primer coating cannot meet the requirements, and the compressive strength and impact resistance are not enough. , poor mixing effect and other problems, to achieve mild activity, improve wear resistance and durability, good flexibility

Inactive Publication Date: 2018-05-01
YIXING JUREN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-based epoxy iron red primers that have been developed and used in the market, especially the two-component epoxy iron red primers, usually use one component that is water-based and the other component is oily. During the process, the mixing effect of the water-based component and the oil-based component is not good, and the degree of curing is poor, which leads to the hardness of the primer coating after drying not meeting the requirements, and the compressive strength and impact resistance are not enough, which seriously affects the service life.

Method used

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  • Waterborne bicomponent epoxy iron red shop primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Add 250kg of deionized distilled water, 400kg of water-based epoxy resin, 10kg of iron red pigment, and 2kg of water-based dispersant into the grinding container, and turn on the mixer to stir evenly. After 0.5 hours, add 10kg of defoamer, and then continue Stir well.

[0039] (2) After reacting for 1 hour, add 10kg of nano-alumina, 70kg of filler barium sulfate, and 10kg of preservative benzoic acid in sequence, and continue to stir and react for 0.5 minutes.

[0040] (3) Under the condition of uniform stirring, add 8kg of water-based amine curing agent into the container, and raise the temperature to 70°C at the same time, and perform high-speed dispersion mixing for 0.5 hours after it reacts for 2 hours.

[0041] (4) After dispersing and mixing for 0.5 hours, lower the temperature to 40°C, and then carry out sand grinding process, and control the fineness within 55um after toning.

[0042] (5) filter and obtain the slurry with a 130 mesh stainless steel filter s...

Embodiment 2

[0046] (1) Add 260kg of deionized distilled water, 430kg of water-based epoxy resin, 11kg of iron red pigment, and 4kg of water-based dispersant into the grinding container, and turn on the mixer for uniform stirring. After 0.5 hours, add 8kg of defoamer, and then continue Stir well.

[0047] (2) After reacting for 1 hour, add 12kg of nano-alumina, 80kg of filler barium sulfate, and 12kg of preservative benzoic acid in sequence, and continue to stir and react for 0.5 minutes.

[0048] (3) Under the condition of uniform stirring, add 7.5kg of water-based amine curing agent into the container, and raise the temperature to 70°C at the same time, and perform high-speed dispersion mixing for 0.5 hours after it reacts for 2 hours.

[0049] (4) After dispersing and mixing for 0.5 hours, then carry out sand grinding process, and control the fineness within 55um after toning.

[0050] (5) filter and obtain the slurry with a 130 mesh stainless steel filter screen, namely obtain the fir...

Embodiment 3

[0054] (1) Add 280kg of deionized distilled water, 450kg of water-based epoxy resin, 14kg of iron red pigment, and 5kg of water-based dispersant into the grinding container, and turn on the mixer to stir evenly. After 0.5 hours, add 11kg of defoamer, and then continue Stir well.

[0055] (2) After reacting for 1 hour, add 13kg of nano-alumina, 100kg of filler barium sulfate, and 12kg of preservative benzoic acid in sequence, and continue to stir and react for 0.5 minutes.

[0056] (3) Under the condition of uniform stirring, add 9kg of water-based amine curing agent into the container, and raise the temperature to 70°C at the same time, and perform high-speed dispersion mixing for 0.5 hours after it reacts for 2 hours.

[0057] (4) After dispersing and mixing for 0.5 hours, lower the temperature to 40°C, and then carry out sand grinding process, and control the fineness within 55um after toning.

[0058] (5) filter and obtain the slurry with a 130 mesh stainless steel filter ...

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Abstract

The invention discloses waterborne bicomponent epoxy iron red shop primer and a preparation method thereof, and relates to a coating composition. The waterborne bicomponent epoxy iron red shop primerprovided by the invention comprises a component A and a component B, wherein the component A is prepared from waterborne epoxy resin, an iron red pigment, nano alumina, a dispersant, a filling material, a waterborne antifoaming agent, a waterborne preservative, negative ion distilled water and a waterborne amine curing agent; the component B is prepared from a waterborne epoxy resin emulsion, a waterborne antifoaming agent, a waterborne wetting and flatting agent, a waterborne preservative, a water-soluble active thinner and water. The component A and the component B adopted by the waterbornebicomponent epoxy iron red shop primer provided by the invention are both waterborne products, and are easily mixed; a sufficient curing purpose can be achieved. The waterborne bicomponent epoxy ironred shop primer has higher impact resistance, cannot generate foaming and stripping phenomena, meanwhile, has advantages of nontoxicity, flame retarding effect, explosion-proof effect, long application period, high hardness of film and high toughness, has uniform color and cluster, and can be used for meeting requirements of safety and environmental protection.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a water-based two-component epoxy iron red primer and a preparation method thereof provided for environmentally friendly water-based coatings. Background technique [0002] Currently on the market, many coating products used in the traditional machinery, automobile, and electrical equipment coating processes are prepared from organic solvents. Environmental pollution also affects the health of construction workers. As environmental protection requirements become higher and higher, oil-based paints will be gradually eliminated, while water-based paints not only save resources, but also meet environmental protection requirements. It has become an inevitable trend to replace oil-based paints. The road to industrial upgrading of the chemical coatings industry. [0003] At the same time, modern industrial floor primers are required to be dust-proof, corrosion-resistant, compressive, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/20C09D7/61
CPCC09D163/00C08K2003/2227C08K2003/2272C08K2003/3045C08K2201/003C08K2201/011C08L2205/025C09D5/002C08L63/00C08K13/02C08K3/22C08K3/30C08K5/09
Inventor 钱剑峰
Owner YIXING JUREN PAINT
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