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Graphene-modified building coating material

A technology of graphene modification and architectural coatings, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor water resistance and mechanical strength, adhesion, contrast ratio, and poor scrubbing resistance, and achieve increased attachment Concentrate, improve cohesion, improve the effect of adhesion

Active Publication Date: 2014-04-23
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a kind of environmental protection, improve the water resistance of architectural coatings and improve the defects of poor water resistance and mechanical strength of existing architectural coatings, and the adhesion with the substrate, contrast ratio, and washing resistance are poor and limited. Graphene-modified architectural coatings with mechanical strength, improved adhesion to substrates, contrast ratio, and scrub resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Architectural coatings are commercially available acrylic emulsion-based architectural coatings. Graphene powder is added to the architectural coatings, stirred evenly, and left to stand for 1 hour; bamboo charcoal fibers and bone glue are first mixed with acetone, stirred at 45°C for 1.5 hours, and then Centrifuge and dry at 80°C; add auxiliary additives to the architectural coatings added with graphene, stir evenly and let stand; wherein, the amount of graphene added accounts for 0.001% by weight of architectural coatings, and the auxiliary additives The added amount of the architectural coating accounts for 0.5% by weight, wherein the mass ratio of bamboo charcoal fiber to bone glue is 1:1, and the solvent is acetone.

[0032]

Embodiment 2

[0034] Architectural coatings are commercially available alkali metal sodium silicate as the base material. Graphene slurry is added to the architectural coatings, stirred evenly and left to stand for 1 hour; Stir at ℃ for 2.5h, then centrifuge and dry at 65℃; add auxiliary additives to the architectural coatings added with graphene, stir evenly and let stand; wherein, the amount of graphene added accounts for the weight percentage of architectural coatings 0.01%, the amount of auxiliary additives accounted for 1% by weight of architectural coatings, wherein the mass ratio of bamboo charcoal fiber to nano-titanium dioxide is 1:2, and the solvent is deionized water.

Embodiment 3

[0036] Architectural coatings are commercially available architectural coatings based on alkali metal sodium silicate. Graphene powder is added to the architectural coatings, stirred evenly and left to stand for 1 hour; nano-alumina and bone glue are mixed with deionized water first, Stir for 3 hours, then centrifuge and dry at 120°C; add auxiliary additives to the architectural coatings added with graphene, stir evenly and let stand; wherein, the amount of graphene added accounts for 5% by weight of architectural coatings. %, the amount of additives accounted for 8% by weight of architectural coatings, wherein the mass ratio of nano-alumina to bone glue is 3:1, and the solvent is deionized water.

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PUM

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Abstract

The present invention discloses a graphene-modified building coating material, which comprises a solvent, a commonly used additive and a main film forming substance, and further comprises graphene for modification, wherein the amount of the added graphene is 0.001-20% of the weight of the building coating material, the building coating material can further be added with the auxiliary additive, and the amount of the added auxiliary additive is 0-8% of the weight of the building coating material. According to the present invention, graphene is added to the existing building coating material so as to modify the water resistance mechanical strength of the building coating material and increase adhesion of the building coating material and the substrate, the contrast ratio and the scrubbing resistance; the bamboo carbon fibers are added to the building coating material so as to provide effects of bacterial inhibition, antibacterial and anti-ultraviolet light, such that the building coating material has the characteristic of green environmental protection; and the bone glue is added to the building coating material so as to improve bonding property and increase adhesion.

Description

technical field [0001] The invention relates to an architectural coating, in particular to a graphene-modified architectural coating that improves the water resistance and mechanical strength of the architectural coating, and improves the adhesion to the substrate, the contrast ratio, and the scrubbing resistance. [0002] Background technique [0003] Architectural coatings include water-based architectural coatings and solvent-based architectural coatings. Solvent-based architectural coatings are restricted in architectural coatings because they release toxic solvents during the curing process and do not meet environmental protection requirements. It has strong aging resistance and is still used in the exterior wall decoration of high-rise buildings. [0004] Architectural coatings for exterior wall coating require the underlying surface to be dry, solid, and firm without sanding, cracks, and looseness. However, most architectural coatings suitable for exterior walls now ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D131/04C09D133/00C09D175/04C09D127/12
Inventor 唐长林王樑付正伟张羽蔡凤新
Owner NINGBO MORSH TECH
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