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Prepetition method of protective powder coating

A powder coating and alloy powder technology, applied in the field of preparation of protective powder coatings, can solve the problems of poor dispersion of nanoparticles, prone to cracks, and can not be greatly improved in performance, achieve excellent corrosion resistance and surface wear resistance, and improve coating performance. Layer compactness, the effect of improving anti-pollution ability

Inactive Publication Date: 2015-09-30
张作玮
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Modified by physical blending, due to the problems of poor dispersion, poor stability and easy agglomeration of nanoparticles, the performance cannot be greatly improved
[0005] At present, inorganic fillers are used to modify water-soluble resins, the effect is poor, and problems such as cracks are prone to occur.
Blending modification with nanomaterials is widely used in plastic resins, which can solve the problem of cracks, but the method of blending in water-based resins will cause demulsification and other phenomena, which will cause separation of nanoparticles and resin during storage, forming Precipitation, flocculation and agglomeration, resulting in unstable storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of Cu / Ni / Ti / Sn / Si alloy powder: based on the total weight of the alloy, according to the percentage by weight, Cu is 5%, Ti is 2%, Sn is 0.02%, Si is 2%, and the rest To prepare ingredients for Ni, put the raw materials into a crucible with a bottom hole equipped with an induction coil for heating and melting. The diameter of the bottom hole is about 1-1.5mm. It is carried out under normal pressure, and the induction coil plays the role of heating and melting the alloy. When the alloy is melted, the induction coil is energized, and the nitrogen pressure system is turned on after the raw material is melted. The edge of the runner is in contact, the linear speed of the edge of the runner is 18-20m / s, and the edge of the runner shakes the alloy liquid into strips with a thickness of 0.5mm; 600 mesh alloy powder, spare.

[0023] Preparation of protective powder coatings: weigh 10 parts of hexafluorobutyl methacrylate, 20 parts of hexafluorobutyl methacrylate mo...

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Abstract

The invention relates to a protective powder coating. The protective powder coating comprises 10 parts of hexafluorobutyl methacrylate, 20 parts of hexafluorobutyl methacrylate modified epoxy resin, 20 parts of polyester resin, 2 pars of curing agent, 2 parts of nano sodium-montmorillonite, 1 part of flatting agent, 3 parts of rutile titanium dioxide, 2 parts of wetting accelerant, 15 parts of Cu / Ni / Ti / Sn / Si alloy powder and 10 parts of pigment. The protective powder coating has excellent hydrophobicity and oleophobicity, good wear resistance and good corrosion resistance.

Description

technical field [0001] The invention relates to a preparation method of a protective powder coating. Background technique [0002] Traditional metal surface treatment often uses solvent-based coatings, which not only cause serious environmental pollution, but also cause great harm to human health. At the same time, there are safety hazards such as flammability and explosion during construction, storage, and transportation. Based on the awareness of energy saving and environmental protection, metal surface treatment is gradually developing in the direction of non-toxic and water-based. [0003] The market share of water-based anti-corrosion coatings in Japan, Europe and the United States has exceeded 60%, while the proportion in my country is obviously low. With the improvement of technology and formula, water-based metal protective coatings are the development direction and trend of the coatings industry . However, water-based resin products in the domestic and foreign mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D167/00C09D5/10C09D5/03C09D5/16C09D7/12B22F9/04
Inventor 张作玮
Owner 张作玮
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