Nano composite powder coatings and dispersion polymerization preparation method thereof

A powder coating and nano-composite technology, applied in powder coatings, coatings and other directions, can solve the problems of uneven coating thickness, complicated manufacturing process, and difficult dispersion of nanoparticles, and achieve low equipment investment, light dust pollution, and obvious antibacterial. and anti-ultraviolet effect

Inactive Publication Date: 2009-02-04
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the traditional powder coating manufacturing process, the coating thickness is uneven and the nanoparticles are not easy to disperse in the polymer, and to provide a new nanocomposite powder coating and its manufacturing method

Method used

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Examples

Experimental program
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Embodiment

[0035] The distribution ratio for each group is:

[0036] Deionized water 250 Ethanol 50 Mixed monomer 100 Nano ZnO particles 10

[0037]Pigment and filler 20 Dispersion stabilizer 10 Initiator 1.5 Surface treatment agent 1.0.

[0038] The proportioning ratio of the ingredients contained in the above-mentioned mixed monomers is:

[0039] Hard monomer 80 soft monomer 30 functional monomer 2.

[0040] Among them, the inorganic nano-antibacterial particles use nano-zinc oxide powder, and the composition of the hard monomer is:

[0041] Methyl methacrylate (polymer grade) 65 Styrene (polymer grade) 15

[0042] The soft monomer is butyl acrylate (polymerization grade), the functional monomer is acrylic acid (polymerization grade), the dispersion stabilizer in the auxiliary agent is polyvinylpyrrolidone alcohol, the initiator is benzoyl peroxide, and the surface treatment agent is silane coupling agent.

[0043] The preparation method is:

[0044] A. Weigh methyl methacrylate,...

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PUM

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Abstract

The present invention relates to the field of nano-powder composite material preparation, in particular to a composite nano-powder coating and a preparation method adopting dispersion polymerization thereof. The ingredients used to prepare the nano-powder coating include water, alcohol, monomer mixture, inorganic nano-particles, pigment filler and assistant. Surface treatment is first carried out on the nano-particles and the pigment filler, which are then added into the monomer mixture and dispersed by ultrasonic so that mixed solution is produced. Then, the mixed solution is added into alcohol-water mixed solution containing dispersion stabilizer and dispersed by ultrasonic, and after six hours of temperature reaction, the product undergoes centrifugation and vacuum drying so that the final product is prepared. The present invention resolves the defects of the prior art, including large powder particle diameter, uneasy scumbling and uneven coating, and avoids the problems of the complexity of the traditional preparation technique and the easy agglomeration of nano-particles in organic polymers. The preparation method adopting dispersion polymerization has the advantages of short process flow, little investment, energy saving, no powder pollution, etc.; the prepared powder coating is characterized by neat particle shape, small particle diameter and easy scumbling and has functions such as antibacterial function and ultraviolet-resisting function; the powder coating in use has good leveling property.

Description

technical field [0001] The invention relates to the field of manufacturing nano-powder composite materials, in particular to a nano-composite powder coating and a dispersion polymerization manufacturing method thereof. Background technique [0002] Powder coatings have the advantages of environmental protection, energy saving, cost-effectiveness, and no solvent pollution during production and construction. They belong to a typical class of environmentally friendly coatings and are widely used in the fields of oil and gas pipeline anticorrosion, automobile manufacturing, air conditioners, refrigerators, washing machines, and hardware appliances. , In recent years, with the strict requirements of energy saving and emission reduction, powder coatings have developed rapidly. [0003] The powder coating is made of resin, pigment and a small amount of additives. After mixing, heating, melting and extruding, it is cooled and crushed into small flakes, and then mechanically crushed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D133/08C09D125/08C09D125/16C09D131/04C09D133/20C09D133/22C09D5/03
Inventor 唐二军
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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