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Flexible ceramic coating and preparation method thereof

A technology of flexible ceramics and coatings, which is applied in the field of coatings, can solve the problems that large bending deformation cannot occur, restrict the popularization and application of ceramic coatings, and the coatings do not have recoatability, so as to achieve long pot life, improve recoating performance, The effect of improving flexibility

Active Publication Date: 2019-05-24
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The application publication number is 101760057A, which discloses a ceramic coating, its preparation method, and a method for preventing cracking of the ceramic coating film. The ceramic coating disclosed in this patent consists of the following components: A component: composed of metal oxide sol, colored Pigments, flake pigments, orientation aids and water; component B: a mixture of at least two alkoxysilanes with different hydrolysis rates, the ceramic coating disclosed in this patent is prone to cracking when the film thickness is >40um, Falling off, and no large bending deformation can occur after curing and molding, the coated workpiece must be formed first and then sprayed, otherwise a small bending deformation of the substrate may cause damage to the coating, and the coating does not have recoatability and interlayer adhesion Poor, unqualified products must be polished to the metal substrate before re-spraying, and the work efficiency is low
[0004] The existence of the above defects seriously restricts the further popularization and application of ceramic coatings. Therefore, it is urgent to develop ceramic coatings with low curing temperature, good toughness, excellent adhesion, and recoatability to improve the construction performance of ceramic coatings and further expand ceramic coatings. Application field of coating

Method used

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  • Flexible ceramic coating and preparation method thereof
  • Flexible ceramic coating and preparation method thereof
  • Flexible ceramic coating and preparation method thereof

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Embodiment 1

[0037] The flexible ceramic coating of this embodiment is prepared by mixing component A, component B, and component C. The component A is mainly composed of the following components in parts by mass: acid silicon with a silicon dioxide content of 40%. Sol 99 parts, defoamer Airex 901W 0.2 parts, wetting and leveling agent BYK-333 0.8 parts; the B component is mainly composed of the following components in mass parts: 10 parts of methyl orthosilicate, methyl trimethyl 50 parts of oxysilane, 5 parts of phenyltrimethoxysilane, 10 parts of dimethyldimethoxysilane, 15 parts of γ-glycidyl etheroxypropyl trimethoxysilane, 2 parts of tetra-n-butyl titanate, 8 parts of ethanol; the C component is a silicone-modified acrylic emulsion; the mass ratio of the A component, B component, and C component is 25:10:4.

[0038] The organosilicon-modified acrylic emulsion of the present embodiment is mainly made of the following raw materials in mass percentage:

[0039] Methyl Methacrylate 18%,...

Embodiment 2

[0050] The flexible ceramic coating of this embodiment is prepared by mixing component A, component B, and component C. The component A is mainly composed of the following components in parts by mass: acid silicon with a silicon dioxide content of 30%. Sol 20 parts, pigment titanium dioxide 35 parts, filler precipitated barium sulfate 5 parts, filler talc powder 5 parts, dispersant BYK-190 5 parts, defoamer Airex 901W 0.5 parts, wetting and leveling agent BYK-333 1.5 parts, 0.5 parts of anti-sedimentation additive BENTONE LT, 27.5 parts of deionized water; the B component is mainly composed of the following components in mass parts: 10 parts of ethyl orthosilicate, 55 parts of methyltrimethoxysilane, dimethyl 5 parts of dimethoxysilane, 5 parts of diphenyldimethoxysilane, 10 parts of chloropropyltrimethoxysilane, 5 parts of γ-(methacryloxy)propyltrimethoxysilane, titanic acid 3 parts of tetra-n-butyl ester, 7 parts of ethanol; the C component is a silicone-modified acrylic emu...

Embodiment 3

[0063] The flexible ceramic coating of this embodiment is prepared by mixing component A, component B, and component C. The component A is mainly composed of the following components in parts by mass: acid silicon with a silicon dioxide content of 30%. 30 parts of colloidal sol, 10 parts of acidic silica sol with a silica content of 40%, 15 parts of pigment iron yellow, 5 parts of filler alumina, 5 parts of filler talc powder, 5 parts of filler mica powder, 7 parts of filler whisker silicon, disperse AFCONA 4530 6 parts, defoamer Airex 901W 0.5 parts, wetting and leveling agent BYK-333 1.0 parts, anti-sedimentation additive BENTONE LT 0.5 parts, deionized water 15 parts; the B component mainly consists of the following parts by mass Number of components: 69 parts of methyltrimethoxysilane, 8 parts of phenyltrimethoxysilane, 10 parts of γ-(methacryloyloxy)propyltrimethoxysilane, 4 parts of tetra-n-butyl titanate , 9 parts of ethanol; the C component is a silicone-modified acryl...

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Abstract

The invention relates to the technical field of coatings, in particular to a flexible ceramic coating and a preparation method thereof. The flexible ceramic coating is prepared by mixing a compositionA, a composition B and a composition C, wherein the composition A mainly comprises, by mass, 10-99 parts of acidic silica sol, 0-35 parts of pigments, 0-28 parts of a filler, 0-40 parts of deionizedwater, 0-10 parts of a dispersant, 0-0.7 part of an anti-settling aid, 0.2-0.5 part of a defoaming agent and 0.8-1.5 parts of a wetting leveling agent; the composition B mainly comprises, by mass, 85-93 parts of alkoxy silane monomers, 2-5 parts of a titanate coupling agent and 5-10 parts of an organic solvent; the composition C is an organosilicon-modified acrylic emulsion. The flexible ceramic coating is low in curing temperature, high in toughness and excellent in recoating property, and the phenomena of cracking, shedding and the like cannot occur when the thickness of a film reaches 90 micrometers.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a flexible ceramic coating and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the development of the economy, ceramic coatings prepared by the sol-gel method are incomparable to traditional organic coatings due to their high hardness, friction resistance, flame retardancy, super weather resistance, low surface energy, anti-graffiti, environmental protection and safety. It has been widely used in non-stick pans, building curtain walls, subway locomotives and other fields. [0003] The application publication number is 101760057A, which discloses a ceramic coating, its preparation method, and a method for preventing cracking of the ceramic coating film. The ceramic coating disclosed in this patent consists of the following components: A component: composed of metal oxide sol, colored Pigments, flake pigments, orienta...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D133/12C09D133/10C09D1/00C09D5/16
Inventor 刘仲阳史立平马智俊勾运书王木立何毅
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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