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Powder coating containing nano whisker material and preparation method thereof

A nano-whisker, powder coating technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., achieves the effects of reducing production costs, expanding the scope of use, and simple and efficient preparation methods

Inactive Publication Date: 2011-12-14
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology provided by this patent only adds calcium sulfate whiskers as an antibacterial agent to waterproof and anti-crack exterior wall coatings, and does not apply it to powder coatings

Method used

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  • Powder coating containing nano whisker material and preparation method thereof
  • Powder coating containing nano whisker material and preparation method thereof
  • Powder coating containing nano whisker material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add the Si-69 coupling agent of 1g in 499g nano barium sulfate whisker, mix at a high speed at 50 DEG C, obtain the modified nano barium sulfate whisker after stirring;

[0029] Nano-barium sulfate whiskers have an average diameter of 50nm and an average length of 200μm;

[0030] (2) 500g mixture in step (1), polyester of 600g, 50g triglycidyl isocyanurate, 5g acrylate, 10g antioxidant 1010, 2g benzylethanol ketone, 40g aluminum stearate are mixed Mix evenly in the machine;

[0031] (3) Extruding the mixture containing the nano whisker material in step (2) at 120° C., then crushing, grading and sieving to obtain the nano whisker powder coating immediately.

[0032] Paint film performance:

[0033]

Embodiment 2

[0035] Adopt the same method as embodiment 1, wherein:

[0036] (1) at first 2600g nano-calcium sulfate whiskers and 2600g nano-calcium carbonate whiskers are mixed, add the stearic acid coupling agent of 600g in, mix at 105 ℃, stir, obtain the nano-whisker material of modification after;

[0037] Nano-barium sulfate whiskers have an average diameter of 100nm and an average length of 30μm;

[0038] The average diameter of nano-calcium carbonate whiskers is 60nm, and the average length is 175μm;

[0039] (2) 6000g mixture in step (1), epoxy resin of 5000g, 1000g hydroxyalkyl amide, 100g polysiloxane, 500g antioxidant 264, 100g benzylethanol ketone, 200g silicon dioxide in mixer well mixed;

[0040] (3) Extrude the mixture containing the nano whisker material in step (2) at 105° C., then crush and classify and sieve to obtain the nano whisker powder coating immediately.

[0041] Paint film performance:

[0042]

[0043]

Embodiment 3

[0045] Adopt the same method as embodiment 1, wherein:

[0046] (1) Add the Si-69 coupling agent of 9g in 450g nano barium sulfate whisker, mix at 50 ℃, obtain the modified nano whisker material after stirring;

[0047] Nano-barium sulfate whiskers have an average diameter of 75nm and an average length of 100μm;

[0048] (2) The mixture of 459g in step (1), the polyester of 550g, 80g hydroxyalkyl amide, 9g acrylate, 25g antioxidant 264, 7g benzylethanolone, 28g zinc stearate are mixed in mixer ;

[0049] (3) Extrude the mixture containing the nano whisker material in step (2) at 105° C., then crush and classify and sieve to obtain the nano whisker powder coating immediately.

[0050] Paint film performance:

[0051]

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Abstract

The invention discloses a powder coating containing nano-whisker materials and a preparation method thereof. The parts by weight of each component are: 50-60 parts of resin, 5-10 parts of curing agent, 0.5-1 part of leveling agent, anti- 1-5 parts of oxygen agent, 0.2-1 part of defoamer, 2-4 parts of matting agent, 40-50 parts of modified nano whisker material. The invention adopts the nano-whisker material as the filler in the powder coating to replace the commonly used titanium dioxide and lithopone, and can reduce the production cost while obtaining the high-performance powder coating. The preparation method is simple and efficient, not only the powder coating with excellent performance can be obtained, but also the production cost can be greatly reduced, and the application range of the powder coating can be expanded.

Description

technical field [0001] The invention relates to a powder coating containing nano whisker material and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free 100% solid powder coating, which is composed of resin, pigment, filler and additives. The resin component as the main film-forming substance can be a resin and its curing system or it can be Several resin mixtures. The filler part is the most used in powder coatings. Common fillers include: titanium dioxide, lithopone, etc. Not only are the properties of the obtained powder coatings poor, but they are also expensive to produce. [0003] The related document that mentions whisker material in coating is that patent (Application No.: 200710158103.0) mentions a kind of waterproof and anti-cracking architectural exterior coating in patent (application number: 200710158103.0), including base material, filler and antibacterial agent, Artificially grown calcium sulfate whisker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/00C09D7/12C09D5/03
Inventor 温绍国王继虎刘宏波宋诗高杨健唐丽
Owner SHANGHAI UNIV OF ENG SCI
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