Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of epoxy water-based baking varnish coating and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An epoxy water-based, baking paint technology, applied in the field of baking paint, can solve the problems of low anti-corrosion performance, different electrical conductivity, and inappropriate electrophoretic coating.
Active Publication Date: 2022-06-28
CHONGQING HAILIAN WATERBORNE COATING
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] Water-based electrophoretic coatings have strong anti-corrosion performance, but have limitations: 1. The workpieces composed of various metals with different conductivity are not suitable for electrophoretic coating; 2. Electrophoretic coating is dip coating construction, and some can only be partially coated The workpiece is not suitable for electrophoretic coating
[0004] Water-based acrylic high-temperature baking varnish has the characteristics of strong decoration and excellent weather resistance, but in terms of anti-corrosion performance, it can only be used for light anti-corrosion projects, especially when the paint film is thinner, the anti-corrosion performance is low, and it cannot meet long-term anti-corrosion. Require
[0005] On some auto parts or some very small electrical parts that only require partial coating, high anti-corrosion performance is required, and the coating is thin (thickness less than 30μm), water-based electrophoretic coatings and water-based acrylic coatings are not suitable for use coating of these parts
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0038] The present invention also provides the preparation method of the epoxy water-based stoving varnish coating described in above-mentioned technical scheme, comprises the following steps:
[0039] Mix the dispersant, defoamer, anti-sedimentation agent, pigments and fillers and part of water and then grind to obtain slurry;
[0040] Mix the slurry, water-based two-component epoxy resin, one-component water-based epoxy resin, amino resin, wetting agent, corrosion inhibitor, film-forming aid and the remainder of water to obtain the epoxy water-based baking varnish coating.
[0041] In the invention, the dispersant, defoamer, anti-sedimentation agent, pigment and filler and part of water are mixed and then ground to obtain slurry.
[0042] In the present invention, the grinding parameters preferably include: the temperature is preferably <50°C, and the fineness after grinding is preferably <50 μm.
[0043] After obtaining the slurry, the present invention mixes the slurry, ...
Embodiment 1
[0048] A kind of epoxy waterborne stoving varnish coating, comprises the component of following mass percent:
[0052] Mix and grind the dispersant, defoamer, anti-sedimentation agent, pigment and filler and part of water to obtain slurry;
[0053] Stir and mix the slurry, water-based two-component epoxy resin, one-component water-based epoxy resin, amino resin, wetting agent, corrosion inhibitor, film-forming aid and the remainder of water at room temperature for 1 hour to obtain the obtained The epoxy water-based baking varnish coating.
Embodiment 2
[0055] A kind of epoxy waterborne stoving varnish coating, comprises the component of following mass percent:
[0058] The preparation method is the same as in Example 1.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
glass transition temperature
aaaaa
aaaaa
particle diameter
aaaaa
aaaaa
particle size (mesh)
aaaaa
aaaaa
Login to View More
Abstract
The invention belongs to the technical field of baking varnish and provides an epoxy water-based baking varnish and a preparation method thereof. The epoxy water-based baking varnishcoating of the present invention comprises the following components in mass percentage: 20-30% of water-based two-component epoxy resin, 20-40% of single-component water-based epoxy resin, 1-3% of amino resin, Dispersant 0.5-1%, defoamer 0.1-0.3%, anti-settling agent 0.1-0.2%, wetting agent 0.2-0.5%, corrosion inhibitor 1-2%, film-forming aid 4-7%, pigment and filler 15-20%, the balance of water. The water-based two-component epoxy resin of the present invention makes the epoxy water-based baking varnish coating have excellent anti-corrosion property under the thin coating situation; the addition of corrosion inhibitor further consolidates and improves the anti-corrosion performance of the epoxy water-based baking varnish coating; by adding high hardness The unique one-component water-based epoxy resin and pigments and fillers solve the problem of anti-sticking of epoxy resin at high temperature.
Description
technical field [0001] The invention relates to the technical field of baking varnish, in particular to an epoxy water-based baking varnish and a preparation method thereof. Background technique [0002] Water-based epoxy resin has good anti-corrosion performance, but because the paint film of water-based epoxy resin is anti-sticky and easily damaged when baked at high temperature, water-based epoxy resin is rarely used in baking paint formulations. Currently on the market, water-based high-temperature baking varnish coatings with anti-corrosion properties are generally water-based electrophoretic coatings and water-based acrylic coatings. [0003] Water-based electrophoretic coatings have strong anti-corrosion performance, but have limitations: 1. The workpieces composed of various metals with different conductivity are not suitable for electrophoretic coating; 2. Electrophoretic coating is dip coating construction, and some can only be partially coated The workpiece shoul...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More