Preparation method of wear-resistant, heat-insulation and corrosion-resistant powder coating

A powder coating and composite ultrasonic technology, applied in powder coatings, anti-corrosion coatings, fire-retardant coatings, etc., can solve problems such as limiting the scope of application, and achieve the effect of expanding the scope of application, maintaining color and gloss, and meeting the needs of efficient operation.

Inactive Publication Date: 2020-02-07
孙振龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, thermosetting powder coatings must be baked at a high temperature to be cured into a film, which limits its application to a large extent.

Method used

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  • Preparation method of wear-resistant, heat-insulation and corrosion-resistant powder coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of its preparation method of wear-resisting, heat-insulating and anti-corrosion powder coating, concrete steps are as follows: 1, put mercaptan and epoxy resin in the reaction still that has condensing tube, heat, then add acid catalyst to carry out ring-opening reaction, reaction temperature The temperature is 40°C, and the open-loop reaction time is 2.5h. The entire reaction process is carried out in a multi-frequency composite ultrasonic auxiliary device, wherein the multi-frequency composite ultrasonic auxiliary is a triple-frequency composite ultrasonic auxiliary. The triple-frequency composite ultrasonic auxiliary is specifically: The axial ultrasonic frequency is 28kHz, 48kHz; the radial ultrasonic frequency is 35kHz; during the reaction process, samples are taken regularly to measure the epoxy value. When the epoxy value no longer decreases, stop the reaction, cool the above reaction system to room temperature, and filter and recover Solid catalyst, place ...

Embodiment 2

[0029] A preparation method of wear-resistant, heat-insulating and anti-corrosion powder coating, the specific steps are as follows: 1. Put mercaptan and epoxy resin in a reaction kettle with a condenser tube, heat, then add an acid catalyst to carry out ring-opening reaction, and the reaction temperature is 30~40°C, the open-loop reaction time is 1h, and the entire reaction process is carried out in a multi-frequency composite ultrasonic auxiliary device, wherein the multi-frequency composite ultrasonic assistance is a triple-frequency composite ultrasonic assistance, and the triple-frequency composite ultrasonic assistance is specifically, The axial ultrasonic frequency is 28kHz, 48kHz; the radial ultrasonic frequency is 35kHz; during the reaction process, samples are taken regularly to measure the epoxy value. When the epoxy value no longer decreases, stop the reaction, cool the above reaction system to room temperature, and filter and recover Solid catalyst, place the remai...

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Abstract

The invention discloses a preparation method of a wear-resistant, heat-insulation and corrosion-resistant powder coating. The powder coating is prepared from the following raw materials: benzoxazine resin, epoxy resin, chlorinated polyether, carboxylated-terminated acrylonitrile-polybutadiene rubber, a curing agent, barite powder and wollastonite powder. The wear-resistant, heat-insulation and corrosion-resistant powder coating can be prepared by processes such as melting, mixing and extruding, cooling for tabletting, crushing and sieving and has excellent wear and corrosion resistance and heat insulation properties, the surface of a processed coating meets the national and industrial standards on the aspects such as adhesive force, flexibility, impact strength, smoothness, hardness and chemical resistance, and the wear-resistant, heat-insulation and corrosion-resistant powder coating is low in curing temperature, convenient to use and capable of reducing the cost.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a preparation method of wear-resistant, heat-insulating and anti-corrosion powder coatings. Background technique [0002] Epoxy powder coatings are thermosetting powder coatings developed in the last century. Its film-forming substance epoxy resin has excellent physical and mechanical properties, and the coating film has good adhesion to the substrate, good electrical insulation, and excellent chemical corrosion resistance. It has been widely used in the internal and external anti-corrosion of chemical industry, electrical appliances, instruments, machinery and transportation pipelines, and occupies a leading position in anti-corrosion coatings. However, due to the characteristics of epoxy resin itself, epoxy powder coatings have poor weather resistance and wear resistance in practical applications, and the coating film is easy to pulverize, so it is not suitable for out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D161/34C09D113/00C09D171/00C09D5/08C09D5/03C09D7/61
CPCC08K2201/011C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2205/05C09D5/033C09D5/08C09D5/18C09D163/00C08L63/00C08L61/34C08L13/00C08L71/00C08K3/30C08K3/34
Inventor 孙振龙
Owner 孙振龙
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