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Functional type powdery paint and preparation method thereof

A powder coating, functional technology, applied in the field of coatings, to achieve low cost, overcome the problem of agglomeration, and achieve the effect of large-scale production

Active Publication Date: 2017-07-04
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, there is no relevant report that microsilica powder, opal, and graphene are simultaneously modified to obtain silica powder / opal / graphene composite fillers, and the composite fillers are added to coatings, especially powder coatings. After compounding silica powder, opal and graphene, the traditional single-function powder coating is transformed into a functional powder with multiple effects such as releasing negative ions, disinfection and sterilization, air purification, high temperature resistance, corrosion resistance, impact resistance and wear resistance. Coating related reports

Method used

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  • Functional type powdery paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] 1. Preparation of microsilica powder / opal / graphene composite:

[0049] 1) Mix 3.0 g of KH560 coupling agent, 64.5 g of deionized water, and 34.5 g of ethanol evenly, adjust the pH to 4.0, stir at room temperature for 40 minutes to fully hydrolyze the coupling agent, and obtain a coupling agent hydrolyzate;

[0050] 2) Disperse 0.1g sulfonated graphene aqueous solution, 0.1g wetting agent (Triton CF-10), 0.2g dispersant (P-19), 1.3g p-toluenesulfonic acid in 50.0g deionized water, and heat to reflux , to obtain a graphene mixed solution;

[0051] 3) Add 1.0 g coupling agent hydrolyzate to the graphene mixed solution, and reflux reaction for 2 hours to obtain a coupling-modified graphene solution;

[0052] 4) 65g particle diameter is 50nm silicon micropowder and 65g coupling agent hydrolyzate are added in step 3) in the coupling modified graphene solution, insulation reaction 3.5 hours, obtain the coupling modified graphene / silicon micropowder solution;

[0053] 5) Add...

Embodiment 2

[0060] 1. Preparation of microsilica powder / opal / graphene composite:

[0061] 1) Mix 1.4g of KH792 coupling agent, 64.5g of deionized water, and 34.5g of ethanol evenly, adjust the pH to 4.0, stir at room temperature for 20 minutes to fully hydrolyze the coupling agent, and obtain a coupling agent hydrolyzate;

[0062] 2) Disperse 0.1g sulfonated graphene aqueous solution, 0.1g wetting agent (Triton CF-10), 0.2g dispersant (P-19), 1.3g p-toluenesulfonic acid in 50.0g deionized water, and heat to reflux , to obtain a graphene mixed solution;

[0063] 3) Add 1.0 g coupling agent hydrolyzate to the graphene mixed solution, and reflux reaction for 5 hours to obtain a coupling-modified graphene solution;

[0064] 4) 65g particle diameter is 50nm silicon micropowder and 65g coupling agent hydrolyzate are added in step 3) in the graphene solution of coupling modification, insulation reaction 2 hours, obtain the graphene / silicon micropowder of coupling modification solution;

[006...

Embodiment 3

[0072] 1. Preparation of microsilica powder / opal / graphene composite:

[0073] 1) Mix 2.0 g of KH550 coupling agent, 64.5 g of deionized water, and 34.5 g of ethanol evenly, adjust the pH to 4.0, stir at room temperature for 30 minutes to fully hydrolyze the coupling agent, and obtain a coupling agent hydrolyzate;

[0074] 2) Disperse 0.1g sulfonated graphene aqueous solution, 0.1g wetting agent (Triton CF-10), 0.2g dispersant (P-19), 1.3g p-toluenesulfonic acid in 50.0g deionized water, and heat to reflux , to obtain a graphene mixed solution;

[0075]3) Add 1.0 g coupling agent hydrolyzate to the graphene mixed solution, and reflux reaction for 4 hours to obtain a coupling-modified graphene solution;

[0076] 4) 65g particle diameter is 50nm silicon micropowder and 65g coupling agent hydrolyzate are added in the coupling modified graphene solution of step 3), insulation reaction 3 hours, obtain the coupling modified graphene / silicon micropowder solution;

[0077] 5) Add 34...

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Abstract

The invention discloses a functional type powdery paint and a preparation method thereof. The functional type powdery paint is composed of the following components in parts by weight: 50 to 60 parts of resin, 3 to 5 parts of curing agent, 15 to 25.5 parts of silica micro powder / opal / graphene composite, 4 to 9 parts of titanium dioxide, and 3 to 6 parts of calcium carbonate. By adding a silica micro powder / opal / graphene composite into the powdery paint, under the synergetic effect of silica micro powder, opal, and graphene, the functions of the powdery paint such as negative ion releasing, sterilizing, air purifying, and the like, are enhanced; at the same time, the properties such as high temperature resistance, corrosion resistance, impact resistance, wear resistance, hardness, and the like, are strengthened; the powdery paint is enabled to have multiple functions; the application range of the powdery paint is enlarged; furthermore, the preparation technology is economic and practical, the preparation process is simple, the cost is low, no any special instrument or severe condition is needed, and massive production can be realized easily.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a functional powder coating and a preparation method thereof, belonging to the technical field of coatings. Background technique [0002] Coatings are playing an increasingly important role in people's lives, and have become an indispensable material for the development of modern society. As global environmental problems become more and more prominent, environmental protection laws and regulations in various countries are becoming stricter, consumers' awareness of environmental protection is improving, and the coatings industry is also facing the test of environmental protection issues. Environmentally friendly coatings have become a research hotspot in the coatings industry. Powder coating is a kind of solid powder coating without any solvent, which is the key development of environmental friendly coating products. However, the current powder coatings still have def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/03
CPCC08K3/04C08K3/22C08K3/26C08K3/36C08K9/04C08K9/06C08K13/06C08K2003/2241C08K2003/265C08K2201/014C09D5/033C09D7/61C09D7/62C09D163/00
Inventor 温绍国余大洋王继虎杜中燕罗健吴攸同
Owner SHANGHAI UNIV OF ENG SCI
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