Aluminum paint, aqueous aluminum paint, and preparation method
A kind of aluminum powder paint, water-based technology, applied in the direction of latex paint, coating, polyester coating, etc., can solve the problems of environmental pollution, coating production difficulties, waste of resources, etc., to save aromatic solvents, reduce energy consumption, and save aluminum resource effect
Inactive Publication Date: 2009-11-11
薛瑞宣
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Among them, the commonly used unit and polybasic acids include phthalic anhydride, phthalic acid and fatty acid substances, such as linseed oil, soybean oil, camphor oil, castor oil, etc., so part of the polybasic acid and monobasic acid are edible oils. People compete for the food chain, part of which is industrial oil extracted from plants, which is likely to cause resource shortages and bring certain difficulties to paint production; the solvents used include 200# solvents, gasoline, xylene, turpentine, etc. Aromatic solvents are not part of the synthetic Membrane material, the solvent used will be discharged into the atmosphere, which not only wastes resources, but also pollutes the environment, and will also cause certain harm to the human body
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[0016] Refer to attached figure 1 and figure 2 , the specific embodiment of the present invention will be described in detail.
[0017] In the aluminum powder paint that the present invention relates to, adopt the gutter oil after filtering as raw material, carry out esterification reaction by gutter oil this multi-acid and / or unit acid and polyhydric alcohol to obtain alkyd resin, then with solvent and aluminum powder Mix with each other to make aluminum powder paint. Wherein, common waste oil is a mixture of fatty acids, wherein the average number of C atoms is 18 to 20, preferably waste oil mainly containing oleic acid and linoleic acid, and the polyhydric alcohol can be any one capable of producing The polyol of esterification reaction, the ratio of input amount of the waste oil and the polyol is preferably equal to the equilibrium reaction amount or one of them is slightly larger than the equilibrium reaction amount, and the above two are put into the reactor to underg...
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The invention relates to an aluminum powder paint, which is prepared by mixing alkyd resin, solvent and aluminum powder, and the alkyd resin is obtained by esterifying polybasic acid and / or unit acid with polyhydric alcohol. The feature is that the polybasic acid and / or unit acid is waste oil, and the mass ratio of the above raw materials is alkyd resin:solvent:aluminum powder=30-70:5-10:7-10. Further, the present invention also adds modified water into the aluminum powder paint. The waste for aluminum powder paint of the present invention, that is, waste oil discharged from canteens is used as a raw material and polyalcohol is subjected to esterification to obtain aluminum powder paint, which reduces energy consumption and does not compete with people for food. Furthermore, on the one hand, the water-based aluminum powder paint of the present invention saves a large amount of aromatic hydrocarbon solvents in the conventional process, on the other hand, it also reduces the amount of aluminum powder per unit mass, and achieves the purpose of saving aluminum resources.
Description
technical field [0001] The invention relates to a coating, in particular to an aluminum powder paint containing aluminum powder. Background technique [0002] Aluminum powder is a kind of paint containing aluminum powder. Due to the good ductility of aluminum, a continuous aluminum film can be formed in the coating film, which can cover pinholes and reduce permeability. Usually the paint material for producing aluminum powder paint is composed of 45-50 parts of alkyd resin, 30-35 parts of solvent and 7-10 parts of aluminum powder paste, and alkyd resin is composed of polybasic acid, unit acid and polyol, etc. The raw material is produced by esterification reaction in the resin reactor. Among them, the commonly used unit and polybasic acids include phthalic anhydride, phthalic acid and fatty acid substances, such as linseed oil, soybean oil, camphor oil, castor oil, etc., so part of the polybasic acid and monobasic acid are edible oils. People compete for the food chain, pa...
Claims
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IPC IPC(8): C09D167/02C09D7/12C09D5/02C09D157/02
Inventor 薛瑞宣
Owner 薛瑞宣