Nano modified aqueous epoxy rust-resisting paint and production method thereof

A technology of water-based epoxy and anti-rust paint, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc.

Inactive Publication Date: 2012-11-28
ANHUI JINDUN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the purposes of the present invention is to solve the deficiencies in the compactness of the paint film and thickening rheology in the existing water-based epoxy coating technology, and to provide a nano-silicon modified water-based epoxy anti-rust coating. Paint, which uses nano-organic silicon solution to improve the wetting and bonding of water-based epoxy resin to powder, and has strong thixotropy, which can make the coating thick film construction without hanging or cracking

Method used

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  • Nano modified aqueous epoxy rust-resisting paint and production method thereof
  • Nano modified aqueous epoxy rust-resisting paint and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] (1) Preparation of component A:

[0110] ① Prepare materials according to the following formula: 20wt% water-based epoxy emulsion, 4wt% nano-inorganic silicon solution, 0.8wt% wetting and dispersing agent, 1.2wt% leveling agent, 2.5wt% film-forming aid, 0.7wt% defoamer, Talc powder 5wt%, heavy calcium carbonate 5wt%, wet sericite powder 5wt%, anti-flash rust agent 0.6wt%, wet iron oxide red 16wt%, zinc phosphate 6wt%, aluminum tripolyphosphate 6wt%, deionized Water 27.2wt%;

[0111] The water-based epoxy emulsion is a product of Shanghai Lujia Water-based Paint Co., Ltd., and the model is GEM02.

[0112] The nano-inorganic silicon solution is a KN series nano-inorganic silicon solution produced by Anyang Hongyang Silicon Industry Technology Co., Ltd.

[0113] The wetting and dispersing agent is a product of San Nopco Auxiliaries Co., Ltd., Japan, and the model is SN-5040.

[0114] The leveling agent is Rohm and Haas leveling agent RM2020.

[0115] The film-forming a...

Embodiment 2

[0134] (1) Preparation of component A:

[0135] ① Prepare materials according to the following formula: water-based epoxy emulsion 22wt%, nano-inorganic silicon solution 5.5wt%, wetting and dispersing agent 0.6wt%, leveling agent 1.8wt%, film-forming aid 3.5wt%, defoamer 1wt%, Talc powder 4wt%, heavy calcium carbonate 4wt%, wet sericite powder 4wt%, anti-flash rust agent 0.5wt%, wet iron oxide red 12wt%, zinc phosphate 5wt%, aluminum tripolyphosphate 5wt%, deionized Water 31.1wt%;

[0136] ② Weigh the water-based epoxy emulsion, wetting and dispersing agent, defoamer and deionized water in the formula, add them to the dispersion tank in turn at a rate of 800rpm for 10 minutes, and use them as base materials for later use;

[0137] 3. Weigh the filler and the anti-rust pigment of the formula, and add them to the base material of step 1 while stirring, and the stirring is carried out at a slow speed of 80rpm;

[0138] ④Add glass beads and grind for 60min at a rate of 3200rpm t...

Embodiment 3

[0146] (1) Preparation of component A:

[0147] ① Prepare materials according to the following formula: water-based epoxy emulsion 25wt%, nano-inorganic silicon solution 4.5wt%, wetting and dispersing agent 1wt%, leveling agent 1wt%, film-forming aid 4wt%, defoamer 0.6wt%, talc powder 5wt%, heavy calcium carbonate 5wt%, wet sericite powder 5wt%, anti-flash rust agent 0.4wt%, wet iron oxide red 15wt%, zinc phosphate 6wt%, aluminum tripolyphosphate 7wt%, deionized water 20.5 wt%;

[0148] ② Weigh the water-based epoxy emulsion, wetting and dispersing agent, defoamer and water in the formula amount, and add them into the dispersion tank in sequence at a rate of 900rpm for 8 minutes, and use them as the base material for later use;

[0149] ③ Weigh the filler and anti-rust pigment of the formula, and add them to the base material of step ① while stirring, and the stirring is carried out at a slow speed of 100rpm;

[0150] ④Add glass beads and grind for 50min at a rate of 3300rpm...

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Abstract

The invention relates to the field of metal anticorrosive paints, particularly relates to a nano modified aqueous epoxy rust-resisting paint and a production method thereof. The nano modified aqueous epoxy rust-resisting paint comprises a component A and a component B, wherein the component A comprises aqueous epoxy emulsion, wetting dispersant, levelling agent, film forming auxiliary agent, antifoaming agent, filling material, anti-flash rust agent, antirust pigment and water and especially nano organic silicon solution, and the component B comprises aqueous cashew nut shell oil modified amine hardener and water. According to the invention, by using the nano inorganic silicon solution to modify the aqueous epoxy rust-resisting paint, compared with unmodified aqueous epoxy rust-resisting paint, the paint film is denser after solidification, and the anlirust property is better; the hardness of the paint film is strengthened, the thixotropy is good, and there is no sagging during facade construction; and compared with the usage of modified polyurethane, alkali swelling and other thickening rheological auxiliary agents, the cost is greatly reduced.

Description

technical field [0001] The invention belongs to the coating class in the chemical category, relates to the field of metal anticorrosion coatings, in particular to a nano-silicon modified water-based epoxy antirust paint and a production method thereof. Background technique [0002] As people's requirements for environmental protection are getting higher and higher, more and more companies have begun to develop water-based anti-rust paint products, especially water-based epoxy anti-rust primers with excellent anti-rust performance. The current water-based epoxy coatings mainly have two forms. One is to emulsify a large molecular weight epoxy resin into a water-based epoxy emulsion, and to form a film with a water-based amine epoxy curing agent. The other is to synthesize a water-based epoxy amine curing agent with self-emulsifying function, which is combined with a low molecular weight liquid epoxy resin to form a film. The above two film-forming methods retain some of the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08C08G59/50
Inventor 朱恒衡张国胜
Owner ANHUI JINDUN PAINT
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