Primer-topcoat combined anti-corrosion paint suitable for various base materials and preparation method thereof
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An anti-corrosion paint and bottom surface technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of lack of adhesion, and achieve the effects of excellent adhesion, simple operation and cost saving.
Inactive Publication Date: 2015-12-02
紫荆花制漆(成都)有限公司
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Problems solved by technology
At present, there are also some coating products that promote the integration of bottom and surface in the market, which are basically ordinary p
Method used
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preparation example Construction
[0044] The specific preparation method of the bottom-surface-integrated anticorrosion paint suitable for various substrates comprises the following steps:
[0045] (1) Add solvent into the container containing low-hydroxyl acrylic resin, stir at a speed of 800-1000r / min, so that the low-hydroxyl acrylic resin is evenly dispersed in the solvent;
[0046] (2) During the stirring process, add additives, organic bentonite and hydrophobic fumed silica, and stir for 10 to 15 minutes;
[0047] (3) Add pigments and fillers, increase the stirring speed to 1200-1500r / min, and place it in an environment lower than 50 degrees Celsius, and stir for 15-20 minutes;
[0048] (4) Use a sand mill to grind the stirred mixture obtained in step (3), and finally add a leveling agent and stir for 15 to 25 minutes at a speed of 800 to 1000 r / min;
[0049] (5) Add solvent, adjust viscosity to 90±5Ku / 30°C, filter out impurities, and obtain component A;
[0050](6) Mix the hexamethylene diisocyanate t...
Embodiment 1
[0055] A bottom-surface integrated anti-corrosion paint suitable for various substrates, which is composed of component A and component B in a ratio of 7:1 by weight, wherein:
[0056] Part A contains the following ingredients, expressed in weight percentage
[0057]
[0058]
[0059] Part B contains the following ingredients, expressed in weight percentage
[0060] Hexamethylene diisocyanate trimer 49.20%
[0061] Solvent 50.80%.
Embodiment 2
[0063] A bottom-surface integrated anti-corrosion paint suitable for various substrates, which is composed of component A and component B in a ratio of 10:1 by weight, wherein:
[0064] Part A contains the following ingredients, expressed in weight percentage
[0065]
[0066] Part B contains the following ingredients, expressed in weight percentage
[0067] Hexamethylene diisocyanate trimer 51.77%
[0068] Solvent 48.23%
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Abstract
The invention discloses primer-topcoat combined anti-corrosion paint suitable for various base materials. The anti-corrosion paint is prepared from, by weight, 7-10 parts of components A and 1 part of components B in a combined mode, wherein the components A is prepared from, by weight, 30-45% of low hydroxyl acrylic acid resin, 6-14% of solvent, 1.8-5 parts of auxiliaries, 0.5-2% of organic bentonite, 0.5-2% of hydrophobic fumed silica, 31-57% of pigment filler and 0.2-1% of leveling agent; the components B is prepared from, by weight, 45-55% of hexamethylene diisocyanate tripolymer and 45-55% of solvent. A preparation method includes the steps that the solvent is added into the low hydroxyl acrylic acid resin, the auxiliaries, the organic bentonite, the hydrophobic fumed silica and the pigment filler are added, stirring and grinding are performed, the viscosity is adjusted, impurities are removed, and then the components A are obtained; the hexamethylene diisocyanate tripolymer and the solvent are mixed to obtain the components B, and the components A and the components B are mixed according to the proportion. The primer-topcoat combined anti-corrosion paint has excellent adhesive force for aluminum products, stainless steel plates and galvanized sheets, has physical and mechanical properties of salt spray resistance and others of anti-corrosion primers, and is excellent in water resistance, acid and alkali resistance and weather resistance, wherein the weather resistance is over 1200 hours.
Description
technical field [0001] The invention relates to the field of chemical anticorrosion paint, in particular to a bottom-surface-integrated anticorrosion paint suitable for various substrates and a preparation method thereof. Background technique [0002] At present, the topic of building a conservation-oriented society has been well known to everyone. It is imperative to develop more effective and convenient anti-corrosion coatings to meet the needs of different industries; Widely used in industry, their excellent corrosion resistance comes from an inert, low surface energy oxide film on the surface, and the inertness and low surface energy of this oxide film often prevent the paint from adhering firmly. At present, there are also some coating products that promote the integration of bottom and surface in the market, which are basically some ordinary polyurethane bottom and surface integration products, which do not have good adhesion to aluminum, stainless steel plates, galvan...
Claims
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