Unlock instant, AI-driven research and patent intelligence for your innovation.

Nickel-coated fly ash and preparation method and application thereof

A fly ash and coating technology, applied in chemical instruments and methods, fibrous fillers, coatings, etc., can solve the problems of inability to enhance the conductivity of zinc powder, inability to improve anti-corrosion performance, poor impact resistance, etc., and achieve high economic efficiency Value and environmental significance, enhanced electrical conductivity, and the effect of reducing production costs

Active Publication Date: 2020-04-07
INST OF PROCESS ENG CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its composite powder is used in soft magnetic materials, and the nickel ferrite in it cannot enhance the conductivity between zinc powders, nor can it improve its anti-corrosion performance
[0009] In the current prior art, the problems of flexibility, poor impact resistance and low adhesion of inorganic zinc-rich coatings have not been effectively solved, and the required materials are expensive and the cost is high. From the comprehensive performance, economic benefits and From the perspective of sustainable development, there are different degrees of defects. Therefore, a new preparation process is urgently needed to improve the deficiencies and defects in the existing technology, and it can also bring certain economic benefits while improving the overall performance of the coating.

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
  • Nickel-coated fly ash and preparation method and application thereof
  • Nickel-coated fly ash and preparation method and application thereof
  • Nickel-coated fly ash and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] This embodiment provides a nickel-coated fly ash and a method for preparing an inorganic zinc-rich coating using the same. The method includes: first preparing nickel-coated fly ash; then, coating the nickel-coated fly ash Ash and zinc powder are mixed to prepare anti-rust filler; finally, a base material is prepared, and the base material is mixed with anti-rust filler to prepare an inorganic zinc-rich coating added with nickel-coated fly ash. The specific operation steps are as follows:

[0077] (1) Prepare the fly ash coated with nickel:

[0078] Mix the nickel sulfate solution with a concentration of 80g / L and the ammonia solution with a concentration of 14mol / L in a mass ratio of 17:1, then add fly ash and heat up to 70°C, and stir mechanically for 1h, wherein the nickel sulfate solution and The ratio of the total mass of the ammonia solution to the mass of the fly ash is 10:1; then dropwise add the nickel reducing agent hydrazine hydrate with a mass fraction of 3...

Embodiment 2

[0087] This embodiment provides a nickel-coated fly ash and a method for preparing an inorganic zinc-rich coating using the same. The method includes: first preparing nickel-coated fly ash; then, coating the nickel-coated fly ash Ash and zinc powder are mixed to prepare anti-rust filler; finally, a base material is prepared, and the base material is mixed with anti-rust filler to prepare an inorganic zinc-rich coating added with nickel-coated fly ash. The specific operation steps are as follows:

[0088] (1) Prepare the fly ash coated with nickel:

[0089] Mix the nickel chloride solution with a concentration of 80g / L and the ammonia solution with a concentration of 12mol / L at a mass ratio of 14:1, then add fly ash and heat up to 80°C, and stir magnetically for 2 hours, wherein nickel chloride The ratio of the total mass of the solution and the ammonia solution to the mass of the fly ash is 15:1; the nickel reducing agent hydrazine hydrate with a mass fraction of 2% is added ...

Embodiment 3

[0098] This embodiment provides a method of adding nickel-coated fly ash and using it to prepare an inorganic zinc-rich coating, the method comprising: first preparing nickel-coated fly ash; then, coating the nickel-coated powder Coal ash was mixed with zinc powder to prepare anti-rust filler; finally, a base material was prepared, and the base material was mixed with anti-rust filler to prepare an inorganic zinc-rich coating added with nickel-coated fly ash. The specific operation steps are as follows:

[0099] (1) Prepare the fly ash coated with nickel:

[0100] Mix the nickel sulfamate solution with a concentration of 80g / L and the ammonia solution with a concentration of 10mol / L at a mass ratio of 10:1, then add fly ash and heat up to 70°C, and ultrasonically disperse for 1.5h. Among them, amino The ratio of the total mass of nickel sulfonate solution and ammonia solution to the mass of fly ash is 10:1; then add dropwise the nickel reducing agent sodium borohydride with a...

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

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
modulusaaaaaaaaaa
adhesivityaaaaaaaaaa
Login to View More

Abstract

The invention provides nickel-coated fly ash, and a preparation method and application thereof. An inorganic zinc-rich coating is mainly prepared by mixing a base material and an antirust filler according to a mass ratio of 1: (1-3.5), wherein the antirust filler comprises zinc powder and the nickel-coated fly ash, and the mass ratio of the nickel-coated fly ash is 0.5%-15%. According to the invention, the fly ash coated with metallic nickel is added into the inorganic zinc-rich coating, so conductivity among zinc powder particles is improved, the utilization rate of zinc powder is improved, the modulus of silicate in the base material is improved to a certain extent, the surface drying time of the coating is shortened, and the comprehensive properties such as adhesive force, flexibility,impact resistance and the like of the coating are improved.

Description

technical field [0001] The invention belongs to the field of paint chemical industry, relates to the field of resource utilization of fly ash, in particular to a nickel-coated fly ash and its preparation method and application. Background technique [0002] Steel is used more and more in modern buildings. Due to its simple manufacturing process and excellent mechanical properties, it is very suitable for modern high-rise buildings with large spans. However, with the extensive use of steel, corrosion problems follow. The annual loss due to corrosion accounts for about 5% of the global GDP, which is more than the total losses caused by earthquake disasters, wind disasters and fires. In order to reduce this economic loss, a cost-effective anti-corrosion method is to apply anti-corrosion coatings. By applying anti-rust pigments on the metal surface, a dense anti-corrosion coating can be formed on the metal surface to strengthen the physical anti-corrosion effect. Anti-corrosion...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/24C09D5/10C09D7/61C09D7/63C09D7/65C09C1/00C09C3/06
CPCC09C1/00C09C3/063C09D1/04C09D5/106C09D5/24C09D7/61C09D7/63C09D7/65
Inventor 马淑花成立鸿王晓辉
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI