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Aqueous epoxy terrace paint and preparation method thereof

An epoxy floor and coating technology, applied in the direction of epoxy resin coatings and coatings, can solve the problems of poor compatibility, short pot life, poor construction, etc., achieve low volatility, improve weather resistance, and improve fullness Effect

Active Publication Date: 2016-04-13
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two main types of existing water-based epoxy floor coatings: one is a system that is compatible with low-molecular liquid epoxy resin and water-based amine curing agent. The comprehensive use cost of this type of coating is low. The mainstream product, because of its relatively high solid content in construction, can be used to prepare thick-coated topcoats, but the compatibility between the two components of the coating is poor, and there are poor workability, short pot life, and poor overall performance of the coating film. and many other disadvantages; the second is the system of compatibility of water-based epoxy resin emulsion and water-based amine curing agent. The two components of the coating are easy to mix, but the construction solid content is relatively low, and it can only be used to prepare thin topcoats. Low, the water-based epoxy resin emulsion contains more hydrophilic segments, which reduces the chemical resistance of the coating film
Therefore existing two types of waterborne epoxy floor coatings all have weak points

Method used

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  • Aqueous epoxy terrace paint and preparation method thereof
  • Aqueous epoxy terrace paint and preparation method thereof
  • Aqueous epoxy terrace paint and preparation method thereof

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preparation example Construction

[0036] The preparation method of waterborne epoxy floor paint of the present invention may further comprise the steps:

[0037] Step 1: Put low molecular weight liquid epoxy resin, modified compatibilizing resin and active diluent into the reaction kettle;

[0038] Step 2: Under stirring conditions, slowly raise the temperature to 60°C, keep it at (60±2)°C for 1 hour, and then cool down to 40°C;

[0039] Step 3: After filtering with a 180-mesh silk screen, the A component of the water-based epoxy floor coating is obtained;

[0040] Step 4: Add water and water-based amine curing agent into the container, and stir evenly;

[0041] Step 5: Under stirring conditions, add pigments and fillers to the container, stir for 30 minutes after adding, and then disperse with a sand mill to a fineness of ≤25 μm to prepare a slurry;

[0042]Step 6: Add functional resin, defoamer, and wetting and leveling agent to the slurry prepared in Step 5 under stirring conditions, and continue stirring...

Embodiment 1

[0046] Table 1: Component A Formulation

[0047]

[0048] Table 2: Formulation of Part B

[0049]

[0050] Preparation Process:

[0051] Step 1: Put 87.0 low molecular weight liquid epoxy resin, 3.0 modified compatibilizing resin and 10.0 active diluent into the reaction kettle;

[0052] Step 2: Under stirring conditions, slowly raise the temperature to 60°C, keep it at (60±2)°C for 1 hour, and then cool down to 40°C;

[0053] Step 3: After filtering with a 180-mesh silk screen, the A component of the water-based epoxy floor coating is obtained;

[0054] Step 4: Add deionized water 21.3, water-based amine curing agent I 33.0, water-based amine curing agent II 11.0 into the container, and stir evenly;

[0055] Step 5: Under stirring conditions, add titanium dioxide 15.0, carbon black 0.2, silicon micropowder 8.0, precipitated barium sulfate 8.0 to the container, stir for 30 minutes after adding, and then use a sand mill to disperse to a fineness of ≤ 25 μm to obtain s...

Embodiment 2

[0059] Table 3: Component A Formulation

[0060]

[0061]

[0062] Table 4: Formulation of Part B

[0063]

[0064] Preparation Process:

[0065] Step 1: Put 87.0 low molecular weight liquid epoxy resin, 3.0 modified compatibilizing resin and 10.0 active diluent into the reaction kettle;

[0066] Step 2: Under stirring conditions, slowly raise the temperature to 60°C, keep it at (60±2)°C for 1 hour, and then cool down to 40°C;

[0067] Step 3: After filtering with a 180-mesh silk screen, the A component of the water-based epoxy floor coating is obtained;

[0068] Step 4: Add 23.0 deionized water, 33.0 water-based amine curing agent I, and 11.0 water-based amine curing agent II into the container, and stir evenly;

[0069] Step 5: Under stirring conditions, add titanium dioxide 1.0, iron oxide yellow 3.0, phthalocyanine green 1.5, silicon micropowder 12.0, precipitated barium sulfate 12.0 into the container, stir for 30 minutes after adding, and then use a sand mill...

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Abstract

The present invention provides an aqueous epoxy terrace paint, comprising a component A and a component B. The component A comprises 80-90 parts of low molecular weight liquid epoxy resin,2-4 parts of a modified resin compatibilizer and 5-15 parts of a reactive diluent. The component B comprises 20-0 parts of water, 40-45 parts of an aqueous amine curing agent, 3-5 parts of a functional resin, 3-18 parts of a pigment, 10-25 parts of a filler, 0.1-0.5 part of a defoamer and 0.1-0.3 part of a wetting leveling agent. The components A and component B of the aqueous epoxy terrace paint are mixed according to a certain proportion to form a film with suitable working life and good workability. The film has good hardness, wear resistance, flexibility, impact resistance and other physical and mechanical properties and chemical resistance. The invention also provides a preparation method of the aqueous epoxy terrace paint.

Description

technical field [0001] The invention relates to an epoxy floor paint, in particular to a water-based epoxy floor paint and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of epoxy water-based technology, water-based epoxy floor coatings have been developed and applied. Compared with solvent-based epoxy floor coatings, water-based epoxy floor coatings have the following advantages: The coating has a single Air permeability, avoiding the disadvantages of foaming or peeling due to moisture; using water as the dispersion medium, flame retardant, explosion-proof, safer and more convenient to produce and use; low VOC (volatile organic compounds, volatile organic compounds) content, more environmentally friendly. [0003] There are two main types of existing water-based epoxy floor coatings: one is a system that is compatible with low-molecular liquid epoxy resin and water-based amine curing agent. The comprehensive use cost o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12
Inventor 史立平何庆迪蔡青青孔志元刘银
Owner CHINA NAT OFFSHORE OIL CORP
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