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An anti-rust coating and pigment technology, applied in the coating field, can solve the problems of poor adhesion between the paint film and the steel structure, endangering the health of workers, difficult heating and curing, etc., so as to reduce the construction process, reduce the construction cost, and reduce the cost. Effect
Active Publication Date: 2016-08-24
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD +1
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In order to obtain excellent corrosion resistance, the rust on the substrate must be removed before coating the paint, because rust is a loose and porous substance, if the paint is sprayed directly without cleaning, it will cause the paint film and The matrix bonding force of steel structural parts is very poor, and the protection effect is also very poor
However, in some working conditions, such as large buildings, bridges, complex equipment, gas storage tanks and other steel structures in the maintenance process, due to the limitation of construction conditions, it is impossible to carry out derusting treatment or the cost of derusting treatment is very high, and derusting treatment Rust treatment work may also cause dust pollution and endanger workers' health
Usually the coating needs heat curing after coating to have good protective performance, but in some working conditions, it is also difficult to heat cure
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preparation example Construction
[0037] The invention also provides a preparation method of the antirust paint.
[0038] The preparation method of the above-mentioned antirust coating is preferably prepared according to the following steps in order to obtain a better antirust curing effect and prevent component A and component B from reacting and deactivating during the preparation of the antirust coating:
[0039] a. Preparation of component A: Mix flux and epoxy resin diluent, stir for 10-30 minutes, add epoxy resin, stir for 30-60 minutes, add the rest of component A except dispersant and defoamer Components, after stirring for 30-60 minutes, add dispersant and defoamer, and stir for 30-40 minutes to obtain component A mixed solution;
[0040] b. Preparation of component B: Mix water and curing agent, stir for 10-30 minutes, then add the remaining ingredients in component B, and stir for 10-30 minutes to obtain component B mixed solution;
[0041] c. Preparation of anti-rust coating: Mix component A mixed...
Embodiment 1
[0044] 1. Coating preparation
[0045] According to K1, K2 and D1 in Table 1 (that is, the comparative test that cannot be cured at room temperature) each raw material component and its proportioning ratio, prepare the antirust coating of the present invention.
[0046] Table 1 Coating components and their proportions
[0047]
[0048]
[0049] a. Preparation of component A: Mix flux and epoxy resin diluent, stir for 10-30 minutes, add epoxy resin, stir for 30-60 minutes, add the rest of component A except dispersant and defoamer Components, after stirring for 30-60 minutes, add dispersant and defoamer, and stir for 30-40 minutes to obtain component A mixed solution;
[0050] b. Preparation of component B: Mix water and curing agent, stir for 10-30 minutes, then add the remaining ingredients in component B, and stir for 10-30 minutes to obtain component B mixed solution;
[0051] c. Preparation of anti-rust coating: Mix component A mixed solution with component B mixed...
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Abstract
The invention belongs to the technical field of coating and in particular designs antirust coating and a preparation method thereof. The antirust coating is prepared from a component A and a component B according to the mass ratio of (3 to 4): 1, wherein the component A is prepared from the following components in parts by weight: 20 to 50 parts of epoxy resin, 1 to 10 parts of an epoxy diluting agent, 6 to 20 parts of a co-solvent, 0 to 15 parts of zinc powder, 0 to 20 parts of zinc phosphate, 0 to 15 parts of zinc yellow, 0 to 20 parts of aluminum tripolyphosphate, 0 to 5 parts of tannic acid, 0.8 to 1 part of organic bentonite, 0 to 30 parts of pigment, 0.1 to 2 parts of a dispersant and 0.1 to 2 parts of a de-foaming agent; the component B is prepared from the following components in parts by weight: 20 to 70 parts of a curing agent, 30 to 50 parts of water, 0.5 to 2 parts of a wetting agent, 0 to 2 parts of a silane coupling agent and 0 to 2 parts of a penetrating agent. The coating provided by the invention can be used for corrosion prevention on a steel-structure material with rusts and a paint film, can realize coating on the rusts and curing at a room temperature, and is more convenient for construction; the construction cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of coatings, and specifically designs an antirust coating and a preparation method thereof. Background technique [0002] With the development of modern industrial technology, the requirements for steel structural parts are getting higher and higher, and the long-life steel structural materials are also subject to more and more severe tests in terms of corrosion and protection. The conventional anti-corrosion method is to prepare one layer of anti-rust coating on the steel surface with paint. In order to obtain excellent corrosion resistance, the rust on the base material must be removed before coating the paint, because rust is a loose and porous substance, if the paint is sprayed directly without cleaning, it will cause the paint film to fade away. The matrix bonding force of steel structural parts is very poor, and the protection effect is also very poor. However, in some working conditions, such as lar...
Claims
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Application Information
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