High-solid-content low-viscosity cathode electrophoresis paint, and preparation method and application method thereof
A cathodic electrophoretic coating, low viscosity technology, used in electrophoretic coatings, electrolytic coatings, electrophoretic plating, etc., can solve the problems of viscosity increase, increase the difficulty of production and use, etc., to achieve improved viscosity, good appearance, excellent coating physics The effect of mechanical energy
Active Publication Date: 2016-08-03
KEDE CHEM IND SHUNDE
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Problems solved by technology
However, high solid content color paste will inevitably lead to an increase in its viscosity, thereby increasing the difficulty of its production and use
Method used
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below.
[0029] Since the high-solid color paste can reduce the renewal amount of the color paste in the electrophoretic coating, thereby reducing the cost of use, it has a broad market prospect, but if the current two-component cathodic electrophoretic coating only increases the solid content in the color paste formula, that is The content of pigments, fillers and resins will increase its viscosity, making it difficult to produce and use, and it will not form a stable and uniform coating.
[0030] The present invention increases the solid content of the color paste and reduces its viscosity by adjusting the pigment-base ratio of the color paste, adding polyether polyols, and using some low-oil-absorbing pigments and fillers. In addition, the present invention improves the synthetic method of the dispersion resin Redu...
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Abstract
The invention discloses a preparation method of a high-solid-content low-viscosity cathode electrophoresis paint. The preparation method comprises the following steps: respectively and sequentially preparing a curing agent, a dispersion resin and an emulsion main body resin, preparing a high-solid-content low-viscosity color paste and an emulsion, adding the color paste, emulsion and deionized water in a ratio of 1:3:4 in the workpiece application process, and circulating for 48 hours for use. The invention also discloses a high-solid-content low-viscosity cathode electrophoresis paint and an application method of the paint. The paint can lower the viscosity of the high-solid-content color paste and reduce the renewal quantity of the color paste in the electrophoresis paint tank, thereby lowering the use cost. The coated film has excellent physical and mechanical coating energy and favorable appearance.
Description
technical field [0001] The invention relates to the technical field of electrophoretic coating, in particular to a cathodic electrophoretic coating with high solid content and low viscosity, and a preparation method and application method thereof. Background technique [0002] Two-component cathodic electrophoretic coatings are widely used in the motor vehicle industry due to their good corrosion resistance, high throwing power, simple operation, convenient management of electrophoretic coating lines, and less coating pollution. Surface anticorrosion and decoration of household appliances, hardware and handicrafts. The two-component cathodic electrophoretic coating is composed of emulsion and color paste. The two parts are mixed according to a certain ratio, and an appropriate amount of water is added to prepare a bath solution, which can be used after aging. [0003] With the increasing awareness of environmental protection and the improvement of environmental regulations ...
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IPC IPC(8): C09D175/08C09D175/04C09D5/44C09D7/12C25D13/06
CPCC08L2205/02C09D5/4465C09D5/448C09D175/08C25D13/04C08L75/04C08K13/02C08K3/04C08K3/346
Inventor 陈裕峰李文庄何愿文高睿刘雪萍梁卫南
Owner KEDE CHEM IND SHUNDE