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Water-based metal surface treatment agent and metal materials with surface film
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A metal surface treatment, water-based technology, applied in metal material coating process, polyurea/polyurethane coatings, coatings, etc., can solve the problems of corroding metal surfaces, unable to meet the high adhesion retention of metal surfaces and laminated films, etc.
Inactive Publication Date: 2017-04-12
NIHON PARKERIZING
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Problems solved by technology
In addition, during long-term use, there is a problem that moisture in the atmosphere will infiltrate into the container, react with the electrolyte to generate hydrofluoric acid, and the hydrofluoric acid will permeate the laminated film to cause peeling of the metal surface and the laminated film. , and will also corrode the metal surface
[0008] However, when the aluminum foils with surface-treated coatings described in Patent Documents 2 to 4 are used as laminated exterior materials for lithium-ion secondary batteries, as described above, they cannot Satisfies high adhesion retention between the metal surface and the laminated film
Method used
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preparation example Construction
[0135] (Preparation method of water-based metal surface treatment agent)
[0136] There is no particular limitation on the preparation method of the water-based metal surface treatment agent of the present invention. For example, it can be prepared by mixing an organic compound (A), a crosslinkable compound (B), optional additives, an optional solvent, and the like, and sufficiently mixing them using a mixer such as a mixer.
[0137] [metallic material]
[0138] Such as figure 1 As shown, the metal material 10 of the present invention has a base material metal 1 and a surface treatment film 2 formed by coating the surface of the metal material 10 of the present invention with the water-based metal surface treatment agent of the present invention. "Coating" means applying a water-based metal surface treatment agent to the surface of the base metal 1 according to the following coating process. "Having" means that it may have other structures than the base material metal 1 and...
Embodiment
[0156] Hereinafter, the present invention will be described in more detail by way of examples and comparative examples. The present invention is not limited by the following examples. In addition, hereinafter, "part" means "mass part", and "mass%" is synonymous with "weight%", and is sometimes expressed as "%" unless otherwise specified. "ppm" is synonymous with "mg / L".
[0157] [polyisocyanate compound (A)]
[0158] The polyisocyanate compound (A) used is as follows.
[0159] (Aa: polyisocyanate A)
[0160] Propylene oxide is added to glycerol, and ethylene oxide is added to the end to make it account for 15% of the total molecular weight to obtain a polyol with a molecular weight of 3000, and 486 parts by mass of the polyol with a molecular weight of 3000 obtained above is mixed. Add 0.02 mass part of dioctyltin dilaurate to the polyol (average molecular weight 2854, average functional group number 2.46) of 26.1 mass parts of dipropylene glycol, and further add 139 mass ...
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Abstract
The present invention provides a drainage metal surface treatment agent for forming a surface treatment membrane. The membrane can prevent the metal surface treatment materials and laminated film or a resin film stripping, and closed sex and drug resistance and excellent stability. This invention by containing isocyanate compound (A) more drainage of metal surface treatment agent and solves the above problem, how isocyanate compounds containing two or more (A) after the isocyanate groups. The treating agent optimization further from crosslinking solution containing organic compounds (B1) and crosslinking inorganic compounds (B2) of one or more than two crosslinking compounds (B), in the crosslinking sexual organic compounds (B1) can react with isocyanate groups the functional groups, in the crosslinking of inorganic compounds (B2) can react with isocyanate groups elements. Isocyanate compound (A) preferred for sealing side is studied by using bisulfite urethane prepolymer.
Description
technical field [0001] The present invention relates to a water-based metal surface treatment agent and a metal material obtained by using the metal surface treatment agent. And a surface treatment film with excellent chemical resistance and adhesion retention. Specifically, the present invention relates to an aqueous metal surface treatment agent and the like for forming a hexavalent chromium-free surface treatment film even after laminating a resin film on a metal material or forming a resin coating film on a metal material. , and then implemented deep drawing processing, thinning processing, or stretching (stretchdraw) processing and other severe forming processing, it is also possible to impart high adhesion without peeling off the above-mentioned laminated film, etc., and, even in Even when exposed to conditions such as acid, it has excellent chemical-resistant adhesion retention and can maintain high adhesion. Background technique [0002] Lamination processing is a ...
Claims
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Application Information
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