A magnesium alloy base material with high salt spray resistance and strong weather resistance protective coating, preparation method and application method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of protective coatings and magnesium alloys, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of limited practical application and prone to corrosion, and achieve excellent salt spray resistance and good corner coverage , the effect of uniform coating
Active Publication Date: 2019-08-06
WUHU CHUNFENG NEW MATERIAL
View PDF3 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
As a structural material, magnesium alloy is extremely prone to corrosion in the service environment, which greatly limits its practical application
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
Embodiment 1
[0033] A magnesium alloy base material with high salt spray resistance and strong weather resistance protective coating, the coating includes the following raw materials in parts by weight, as shown in Example 1 in Table 1:
[0034] Table 1 Coating Formulation
[0035] (1) Stir the hydrogenated silicon-containing epoxy resin of the formula amount under the condition of 300-700 rev / min, and stir
[0036]
[0037] Add titanium dioxide, fumed silica, light stabilizer and UV absorber, xylene, graphene, nano-tantalum, yellow pigment, carbon black in turn under the same conditions, and stir for 10 minutes at 700-1200 rpm , and then, grind to a fineness of less than 15 microns;
[0038] (2) Stir the ground raw materials in step (1) at 300-700 rpm, add talcum powder and glass flakes under stirring conditions, stir at 800-1200 rpm for 15-20 minutes, and the fineness is less than 35 microns to make the coating.
Embodiment 2
[0040] A magnesium alloy base material with high salt spray resistance and strong weather resistance protective coating, the coating includes the following raw materials in parts by weight, as shown in Example 2 in Table 1:
[0041] The preparation method of the coating is the same as that of the coating in Example 1.
Embodiment 3
[0043] A magnesium alloy base material with high salt spray resistance and strong weather resistance protective coating, the coating includes the following raw materials in parts by weight, as shown in Example 3 in Table 1:
[0044] The preparation method of the coating is the same as that of the coating 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
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
Login to view more
Abstract
The invention provides a high-salt-smog-resistance and high-weather-resistance type protecting coating for a magnesium alloy base material, a preparation method and an application method. The high-salt-smog-resistance and high-weather-resistance type protecting coating is characterized in that hydrogenated silicon bonded epoxy resin is used as main resin, and enables a coating layer to meet the demands of indexes on basic salt smog resistance and weather resistance; strongly hydrophobic fumed silica provides high settling resistance of the coating in storage and outstanding sag resistance in construction; a light stabilizer is combined and matched with an ultraviolet absorbent to further ensure the high weather resistance of the coating layer; graphene, nano-tantalum and glass flakes are combined to enable the improvement on the high slag smog resistance and corrosion resistance of the coating layer; talcum powder in the formula acts together with a KH-560 epoxy silane coupling agent to greatly improve the wet adhesion of a coating film to the magnesium alloy coating; xylene is used for adjusting the viscosity of the whole coating system. Compared with the prior art, the prepared special protecting coating for the magnesium alloy is high in weather resistance, outstanding in salt smog resistance, high in solid content, low in viscosity, and uniform in the coating layer.
Description
technical field [0001] The invention belongs to the field of paint preparation, and in particular relates to a protective paint with high salt spray resistance and strong weather resistance for a magnesium alloy base material, a preparation method and a use method. Background technique [0002] Magnesium alloys have the advantages of small specific gravity, specific strength, high specific stiffness, damping, machinability, good thermal conductivity, strong electromagnetic shielding ability, and easy recycling. They are called green engineering materials in the 21st century. In recent years, magnesium alloys have The worldwide annual growth rate is as high as 20%, and it has been widely used in the fields of automobile industry, communication electronics industry and aerospace industry. my country is rich in magnesium ore resources, and strengthening the research and application of magnesium alloys is an important direction for the benefit of the country and the people. [...
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