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Isolation layer coating for heavy metal polluted basal plane as well as preparation method and application

An isolation layer and heavy metal technology, applied in the field of coatings, can solve the problems of secondary pollution of the surrounding environment and human harm, and achieve the effects of improving acid and alkali corrosion resistance, eliminating hazards and improving permeability

Pending Publication Date: 2021-02-12
ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement and development of urbanization, the heavily polluted old industrial bases originally built in the city center will have to be relocated, and the remaining factories and facilities will be repurposed for other purposes, either into warehouses or exhibitions For museums, it is necessary to carry out anti-corrosion treatment on the base surface and equipment contaminated by heavy metals in the factory building, because the surface treatment is required before the usual anti-corrosion work, which will generate a large amount of dust, which contains a large amount of heavy metals, not only harmful to the human body hazards, while causing secondary pollution to the surrounding environment

Method used

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  • Isolation layer coating for heavy metal polluted basal plane as well as preparation method and application

Examples

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preparation example Construction

[0041]In a specific embodiment, the preparation method of above-mentioned coating comprises the following steps:

[0042] (1) Heat, stir and mix the medium molecular weight bisphenol A epoxy resin and emulsifier at a temperature of 70-85°C, and react the low molecular weight epoxy resin with the self-emulsifying epoxy curing agent, then emulsify, stir and disperse evenly, Then mix the above resins with different molecular weights, add water to emulsify, then add surfactants, complexing agents, dispersants, defoamers, thickeners, etc. to mix and disperse evenly at a temperature of 30-60°C to obtain component A ;

[0043] (2) Mix the water-based non-ionic epoxy curing agent, organic solvent and water evenly to obtain component B;

[0044] (3) Mix components A and B uniformly in proportion to obtain a cured isolation layer coating for the base surface polluted by heavy metals.

[0045] The cured isolation layer coating of the invention can be applied to the surface anticorrosio...

Embodiment 1

[0047] The water-based barrier coating of this embodiment is composed of two components, A and B, and the mass ratio of A and B components is 5:1; wherein, A component includes the following ingredients by weight: 40.5 parts of bisphenol A Type medium molecular weight E20 epoxy resin, 31.5 parts of low molecular weight epoxy resin E51, 1 part of surfactant fatty alcohol polyoxyethylene ether, 3 parts of complexing agent and 15.5 parts of deionized water, 0.5 part of thickener; component B It includes the following components by weight: 90 parts of non-ionic modified amine curing agent EX100, 8 parts of water and 2 parts of propylene glycol methyl ether.

[0048] The preparation method of the water-based barrier coating of the present embodiment may further comprise the steps:

[0049] (1) 405kg of bisphenol A type medium molecular weight E20 epoxy resin emulsified by emulsifier, 315KG of low molecular weight epoxy resin E51, 10kg fatty alcohol polyoxyethylene ether, 30kg emuls...

Embodiment 2

[0054] The water-based isolation layer coating of this embodiment is composed of two components, A and B, and the mass ratio of component A and component B is 5:1.5; wherein, component A includes the following components by mass: 49.5 parts of bisphenol A Type epoxy resin E20, 22.5 parts of bisphenol A type epoxy resin E51, 1 part of surfactant fatty alcohol polyoxyethylene ether, 1 part of complexing agent, 15.5 parts of deionized water, 0.5 part of thickener; component B It includes the following components by weight: 70 parts of non-ionic modified amine curing agent EX100, 20 parts of water and 10 parts of propylene glycol methyl ether.

[0055] The preparation method of the water-based barrier coating of the present embodiment may further comprise the steps:

[0056] (1) 495kg of bisphenol A type epoxy resin E51, 10kg fatty alcohol polyoxyethylene ether, 10kg of bisphenol A type epoxy resin emulsified after the reaction of self-emulsifying epoxy curing agent after emulsify...

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Abstract

The invention discloses an isolation layer coating for a heavy metal polluted basal plane as well as a preparation method and application of the isolation layer coating. The isolation layer coating comprises a component A and a component B, the component A comprises 40-50 parts by weight of a medium molecular weight bisphenol A type waterborne epoxy resin with the molecular weight of 400-500, 22-32 parts by weight of a low molecular weight bisphenol A type waterborne epoxy resin with the molecular weight of 150-250, 1-2 parts by weight of a surfactant and 1-5 parts by weight of a complexing agent, and the component B comprises 30-90 parts by weight of a curing agent, 5-15 parts by weight of an organic solvent and 10-20 parts by weight of water. The coating disclosed by the invention is strong in permeability to a base surface polluted by heavy metals, good in anti-corrosion effect and excellent in anti-seepage performance, and has mechanical properties and acid and alkali corrosion resistance.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an isolation layer coating used for a base surface polluted by heavy metals, a preparation method and application thereof. Background technique [0002] With the continuous advancement and development of urbanization, the heavily polluted old industrial bases originally built in the city center will have to be relocated, and the remaining factories and facilities will be repurposed for other purposes, either into warehouses or exhibitions For museums, it is necessary to carry out anti-corrosion treatment on the base surface and equipment contaminated by heavy metals in the factory building, because the surface treatment is required before the usual anti-corrosion work, which will generate a large amount of dust, which contains a large amount of heavy metals, not only harmful to the human body hazards, while causing secondary pollution to the surrounding environment. In order ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/20C09D7/65C09D7/63
CPCC08L2205/025C08L2205/03C09D5/08C09D163/00C09D7/20C09D7/63C09D7/65C08L63/00C08L71/02C08K5/31
Inventor 文纯忠艾九红肖祥湘李基旭
Owner ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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