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Concrete seal primer and preparation method thereof

A technology for sealing primer and concrete, applied in primers, coatings, epoxy resin coatings, etc., can solve problems such as difficulty in achieving protection, coating powdering, coating efflorescence, etc., and achieve excellent anti-settling effect, adhesion Good focus and excellent water resistance

Inactive Publication Date: 2020-08-18
山东七维新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing coatings in China often have pan-alkali and pan-salt during coating, which will cause premature chalking, fading, peeling, cracking and other phenomena of the coating, making it difficult to achieve the purpose of protection

Method used

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  • Concrete seal primer and preparation method thereof
  • Concrete seal primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A concrete sealing primer, composed of two components A and B according to the mass ratio of 10:1,

[0032] Component A main paint: 40 parts of epoxy resin, 0.5 parts of TEGO 810, 0.5 parts of TEGO 280, 2.5 parts of CS-122, 2 parts of ethylene glycol butyl ether, 0.2 parts of bentonite, 5 parts of titanium dioxide, 15 parts of mica powder, talc Powder 5 parts, calcium carbonate 5 parts, nano silica sol THIS-S30 15 parts, deionized water 9.3 parts.

[0033] B component curing agent: 50 parts of amine curing agent, 50 parts of deionized water.

[0034] The above-mentioned component A and component B are prepared into concrete sealing primer according to the following method, and the steps are:

[0035] (1) Add quantitative deionized water into the agitator according to the formula amount, and add co-solvent, defoamer, wetting agent, pigment and filler in order under stirring at a speed of 500r / min, and increase the speed to 1500r after stirring evenly / min, disperse eve...

Embodiment 2

[0039] A concrete sealing primer, composed of two components A and B according to the mass ratio of 10:1,

[0040] Wherein, A component comprises the raw material of following parts by weight:

[0041] 35 parts of epoxy resin, 1 part of dipropylene glycol butyl ether, 1 part of propylene glycol methyl ether, 0.5 parts of BYK022, 0.5 parts of TEGO500, 0.4 parts of bentonite, 10 parts of titanium dioxide, 15 parts of calcium carbonate, 10 parts of silica sol, 26.6 parts of deionized water ;

[0042] B component comprises the raw material of following parts by weight:

[0043] 43 parts of amine curing agent, 57 parts of deionized water.

[0044] The preparation method of above-mentioned concrete sealing primer is the same as embodiment 1.

Embodiment 3

[0046] A concrete sealing primer, composed of two components A and B according to the mass ratio of 10:1,

[0047] Wherein, A component comprises the raw material of following parts by weight:

[0048] 30 parts of epoxy resin, 3 parts of propylene glycol phenyl ether, 2 parts of dipropylene glycol methyl ether, 1 part of TEGO825, 1 part of BYK346, 0.5 parts of bentonite, 5 parts of sericite, 10 parts of calcium carbonate, 20 parts of silica sol, 27.5 parts of deionized water ;

[0049] B component comprises the raw material of following parts by weight:

[0050] 37 parts of amine curing agent, 63 parts of deionized water.

[0051] The preparation method of above-mentioned concrete sealing primer is the same as embodiment 1.

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Abstract

The invention provides a concrete seal primer and a preparation method thereof. The primer is composed of a component A and a component B in a mass ratio of 10:1, wherein the component A comprises thefollowing raw materials in parts by weight: 30-40 parts of epoxy resin, 1-3 parts of a coalescing agent, 1-2 parts of a cosolvent, 0.5-1 part of a defoaming agent, 0.5-1 part of a wetting agent, 0.2-0.5 part of an anti-settling agent, 15-30 parts of a pigment filler and 10-20 parts of silica sol; the component B comprises the following raw materials in parts by weight: 40-50 parts of an amine curing agent and 50-60 parts of deionized water. A paint film formed by the concrete seal primer has excellent water resistance, alkali resistance and permeation resistance, is good in adhesive force with a concrete base layer, is good in impact resistance and other mechanical properties, and has great application value and significance.

Description

technical field [0001] The invention relates to the technical field of water-based industrial coatings, in particular to a concrete sealing primer and a preparation method thereof. Background technique [0002] Reinforced concrete buildings of water conservancy and hydropower are in the water vapor environment all the year round, and the corrosion of the corrosive medium in the water causes electrochemical corrosion of the steel bars inside the concrete, which in turn leads to concrete degradation and cracking, endangering the service life of the reinforced concrete buildings. In order to improve the durability of reinforced concrete buildings for water conservancy and hydropower, applying coating sealing protection on the surface of reinforced concrete can effectively isolate the erosion of harmful media and greatly increase the service life of reinforced concrete. [0003] At present, the existing domestic coatings often have pan-alkaline and pan-salt coatings during coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/00C09D7/61
CPCC08K2201/011C09D5/002C09D7/61C09D163/00C08K13/02C08K3/36
Inventor 武歧杨勇
Owner 山东七维新材料有限公司
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