General epoxy resin primer with good environmental adaptation and preparation method thereof
A technology of epoxy primer and environmental adaptability, used in epoxy resin coatings, coatings, anti-corrosion coatings, etc., can solve the problems of not very versatile, unsatisfactory adhesion, and difficult adhesion of paint, and achieve flexibility Enhancement, excellent water resistance, and the effect of enhancing adhesion
Inactive Publication Date: 2017-08-25
上海古象化工科技发展有限公司
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Problems solved by technology
At present, the universal primers on the market generally have the disadvantage of not being very versatile. For example, some products have good adhesion on the surface of steel and aluminum, but the adhesion to stainless steel or galvanized steel is not satisfactory. It is because the substrates such as stainless steel and galvanized sheet have a dense structure and the surface is too smooth, making it difficult for paint to adhere
Method used
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[0025] The present invention will be further described below in conjunction with examples.
[0026] The raw material information used in the embodiment of the present invention is shown in Table 1.
[0027] The raw material information that table 1 embodiment 1~3 uses
[0028]
[0029]
[0030] The formula of embodiment 1~3 is as shown in table 2:
[0031] The formula of table 2 embodiment 1~3
[0032]
[0033]
[0034] The preparation method is as follows:
[0035] (1) Prepare modified low-molecular-weight epoxy resin, low-molecular-weight liquid epoxy resin, vinyl chloride isobutyl ether copolymer, xylene and propylene glycol methyl ether, stir and mix for 2 hours, set aside.
[0036] (2) Prepare component A, mix and stir the modified low molecular weight epoxy resin, wetting and dispersing agent, and anti-settling agent evenly, then add titanium dioxide, talcum powder, mica powder, and aluminum tripolyphosphate to disperse at high speed for 30 minutes, then ...
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The invention discloses general epoxy resin primer with good environmental adaptation. The general epoxy resin primer is prepared from the following ingredients in parts by weight: a component A of modified low molecular weight epoxy resin, medium molecular weight epoxy resin, wetting dispersant, anti-settling agent, titanium dioxide, talcum powder, mica powder, aluminum triphosphate, propylene glycol monomethyl ether and dimethylbenzene and a component B of dimethylbenzene, n-butyl alcohol, polyamide resin and epoxy accelerator, wherein a mass ratio of the component A to the component B is (6 to 6.5) to 1. According to the general epoxy resin primer, a vinyl chloride isobutyl ether copolymer is utilized to modify epoxy resin, copolymer resin contains a large number of ether bonds, adhesive force between a coating and a substrate material is enhanced, excellent adhesion force is formed on the surfaces of stainless steel and zinc metal, and meanwhile, isobutyl ether long-chain radical can enhance flexibility of a film forming matter. The vinyl chloride isobutyl ether copolymer does not contain hydrolysable ester bond, so that water resistance is excellent, and corrosion resistance of a film is improved.
Description
technical field [0001] The invention belongs to the field of anti-corrosion coatings, in particular to a general-purpose epoxy resin primer with good environmental adaptability. Background technique [0002] During ship construction, steel substrates or other metal substrates need to be protected by coating to avoid corrosion. In the past, different anti-corrosion primers were used for different functional parts or different substrates to meet their special requirements, which brought a lot of inconvenience and waste to the coating construction, and sometimes even confused use caused greater trouble. The general-purpose primer can solve this problem well, that is, it can not only be used as a primer for ballast tanks, cargo warehouses, ship hulls, living quarters, etc., but also can be applied to steel, stainless steel, aluminum, galvanized sheets, etc. Guaranteed its adhesion and anti-corrosion performance on different substrates. At present, the universal primers on the ...
Claims
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IPC IPC(8): C09D163/00C09D5/08C09D7/02C09D7/12
CPCC09D163/00C08K2003/2241C08K2003/327C08L2205/035C09D5/08C09D7/45C09D7/61C09D7/63C09D7/65
Inventor 卢常巧
Owner 上海古象化工科技发展有限公司