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A powder coating and heavy-duty anti-corrosion technology, applied in the field of coatings, can solve the problem that weather resistance and anti-corrosion properties cannot be combined, and achieve the effects of good anti-corrosion detection effect, excellent anti-corrosion resistance, and simple and convenient operation.
Inactive Publication Date: 2012-08-15
国润恒科(天津)防腐工程技术有限公司
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[0008] The purpose of the present invention is to overcome the deficiency that the existing common paints and common powder coatings cannot have both weather resistance and anti-corrosion performance, and provide a weather-resistant heavy-duty anti-corrosion powder coating. Thick coating, easy construction
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Embodiment 1
[0030] A weather-resistant heavy-duty anti-corrosion powder coating, its raw material composition and weight are:
[0031] 1. GEST-5080 hydrogenated bisphenol A epoxy resin 450 parts;
[0032] 2. 80 parts of amine curing agent;
[0033] 3. 0.5 parts of imidazole;
[0034] 4. 60 parts of conductive zinc powder;
[0035] 5. 10 parts of polymer conductive polyaniline;
[0036] 6. 210 parts of weather-resistant filler combination.
[0037] The raw material components and parts of the weather-resistant filler combination are:
[0038] Precipitated barium sulfate 140 parts
[0039] Mica powder 28 parts
[0040] 42 parts of wollastonite;
[0041] 7. Auxiliary combination 29 parts;
[0042] The raw material components and parts of the additive combination are:
[0043]
[0044] The preparation method is:
[0045] Add the above-mentioned materials to a high-speed mixer, dry mix them and then add them to an extruder, melt, knead, cool, and tablet at an extrusion temperature...
Embodiment 2
[0047] A weather-resistant heavy-duty anti-corrosion powder coating, its raw material composition and weight are:
[0048] 1. GEST-5080 hydrogenated bisphenol A epoxy resin 500 parts;
[0049] 2. 70 parts of amine curing agent;
[0050] 3. 1 part of imidazole;
[0051] 4. 80 parts of conductive zinc powder;
[0052] 5. 20 parts of polymer conductive polyaniline;
[0053] 6. Weather-resistant filler combination 240 parts
[0054] The raw material components and parts of the weather-resistant filler combination are:
[0055] Precipitated barium sulfate 160 parts
[0056] Mica powder 32 parts
[0057] 48 parts of wollastonite;
[0058] 7. Auxiliary combination 29 parts;
[0059] The raw material components and parts of the additive combination are:
[0060]
[0061] The steps of the preparation method of this embodiment are the same as in Example 1.
[0062] The composition and function of each raw material are described below:
[0063] 1. The present invention abando...
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Abstract
The invention relates to a weather-resistant heavy-duty anticorrosive powder coating comprising the raw materials in parts by weight: 450-500 parts of hydrogenated bisphenol A epoxy resins, 50-99 parts of curing agents, 0.5-1 part of catalysts, 50-100 parts of zinc-rich fillers, 10-20 parts of self-repairing conductive macromolecule compounds, 190-240 parts of weather-resistant pigments and fillers and 30-50 parts of additives. A preparation method of the coating comprises the steps of putting the raw materials into a high-speed mixer, putting in an extruder after subjecting to dry mixing, carrying out fusion, mixing, cooling and preforming at an extrusion temperature of 80-90 DEG C, grinding by utilizing a grinder, grading, sieving and packaging to obtain finished products of the powder coating. The powder coating disclosed by the invention is mainly applied in the coating of outdoor heavy-duty anticorrosive environments, has excellent anticorrosive performance and weather-resistant performance and is an ideal heavy-duty anticorrosive coating capable of being used for outdoors. Proved by customer use and detection of relevant authoritative departments, the anticorrosive performance and the weather-resistant performance of the coating are excellent and can be completely up to indexes of imported similar products and certain indexes even exceed those of foreign products; the price of the coating is superior than that of the imported products; and therefore, the coating is well received by customers.
Description
technical field [0001] The invention belongs to the field of coatings, in particular to a weather-resistant heavy-duty anti-corrosion powder coating. Background technique [0002] Corrosion of steel has always been a problem worthy of everyone's attention. It is estimated that the annual economic losses caused by metal corrosion in developed countries in the world account for about 3.5% to 4.2% of their gross national product, which is more than that of various catastrophes (fires) every year. , wind disasters and earthquakes, etc.) the average sum of losses; some people even estimate that the annual corrosion scrap and loss of metals in the world is about 100 million tons, so the anticorrosion and protection of steel is particularly important. [0003] At present, the more common anti-corrosion materials include epoxy anti-corrosion coatings, polyurethane anti-corrosion coatings, organic fluorine anti-corrosion coatings, etc., and the use environment and coating methods are...
Claims
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Application Information
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