Nano silicon salt filler zinc-aluminum composite thermal-insulation coating and preparation method thereof

Abstract

The invention discloses a nano silicon salt filler zinc-aluminum composite thermal-insulation coating. The coating comprises, in parts by mass, 18-24 parts of a silicone-acrylate emulsion, 12-14 parts of rutile type titanium dioxide, 2-4 parts of an aid, 55-60 parts of functional filler, 3-4 parts of propylene glycol, 10-15 parts of PPESK (poly(phthalazinone ether sulphone ketone)) modified resin, 15-25 parts of silicon carbide micro-powder, 15-20 parts of fluorinated graphite and 30-35 parts of a coupling agent, wherein the PPESK modified resin comprises, in parts by mass, 40-70 parts of epoxy resin and 20-35 parts of PPESK; the particle size of the silicon carbide micro-powder is 6 mu m; the particle size of the fluorinated graphite is in a range of 5-10 mu m; the functional filler comprises nano-montmorillonite type silicate and barrier type functional filler in the mass ratio of 1:1.5; the barrier type functional filler comprises, in parts by mass, 2-6 parts of hollow glass beads, 10-15 parts of graphite, 20-35 parts of black silicon carbide, 25-30 parts of fine-grained aluminum oxide, 5-10 parts of molybdenum disulfide, 1-5 parts of zinc oxide and 3-6 parts of talc powder. The invention further designs a preparation method of the nano silicon salt filler zinc-aluminum composite thermal-insulation coating.

Description

technical field

[0001] The invention relates to the field of preparation of nano-composite coatings, in particular to a nano-silicon salt filler zinc-aluminum composite heat-insulating coating and a preparation method thereof. Background technique

[0002] The surface of the metal structure exposed to the wild environment is very easy to corrode due to chemical and electrochemical interactions with the surrounding environment. Therefore, it is necessary to coat the surface with an anti-corrosion layer to protect the main body of the metal structure from corrosion. However, when the performance of the anti-corrosion coating material on the surface of the metal structure is poor and damaged, the metal structure body will also be exposed to rust.

[0003] At present, the following methods are used: the traditional anti-rust paint coating, the anti-rust paint film cannot completely prevent the hydration oxygen in the air from penetrating, and the polymer paint material has "agin...

Examples

Embodiment 1

[0037] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 20 parts, rutile titanium dioxide: 13 parts, additives: 3 parts, functional filler: 58 parts, Propylene glycol: 3 parts, polyaryl ether sulfone ketone modified resin: 12 parts, silicon carbide micropowder: 16 parts, fluorinated graphite: 18 parts, coupling agent: 31 parts, of which:

[0038] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 40 parts, polyarylether sulfone ketone: 35 parts;

[0039] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 5 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0040] Functional fillers include:

[0041] Nano-montmorillonite silicate and barrier functional filler, and the mass...

Embodiment 2

[0052] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 19 parts, rutile titanium dioxide: 12 parts, additives: 4 parts, functional fillers: 56 parts, Propylene glycol: 4 parts, polyaryl ether sulfone ketone modified resin: 11 parts, silicon carbide micropowder: 22 parts, fluorinated graphite: 16 parts, coupling agent: 33 parts, of which:

[0053] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 70 parts, polyarylether sulfone ketone: 20 parts;

[0054] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 10 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0055] Functional fillers include:

[0056] Nano-montmorillonite silicate and barrier functional filler, and the ...

Embodiment 3

[0067] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 19 parts, rutile titanium dioxide: 12 parts, additives: 4 parts, functional fillers: 56 parts, Propylene glycol: 4 parts, polyaryl ether sulfone ketone modified resin: 11 parts, silicon carbide micropowder: 22 parts, fluorinated graphite: 16 parts, coupling agent: 33 parts, of which:

[0068] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 56 parts, polyarylether sulfone ketone: 26 parts;

[0069] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 8 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0070] Functional fillers include:

[0071] Nano-montmorillonite silicate and barrier functional filler, and the m...

technical field

[0001] The invention relates to the field of preparation of nano-composite coatings, in particular to a nano-silicon salt filler zinc-aluminum composite heat-insulating coating and a preparation method thereof. Background technique

[0002] The surface of the metal structure exposed to the wild environment is very easy to corrode due to chemical and electrochemical interactions with the surrounding environment. Therefore, it is necessary to coat the surface with an anti-corrosion layer to protect the main body of the metal structure from corrosion. However, when the performance of the anti-corrosion coating material on the surface of the metal structure is poor and damaged, the metal structure body will also be exposed to rust.

[0003] At present, the following methods are used: the traditional anti-rust paint coating, the anti-rust paint film cannot completely prevent the hydration oxygen in the air from penetrating, and the polymer paint material has "agin...

Examples

Embodiment 1

[0037] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 20 parts, rutile titanium dioxide: 13 parts, additives: 3 parts, functional filler: 58 parts, Propylene glycol: 3 parts, polyaryl ether sulfone ketone modified resin: 12 parts, silicon carbide micropowder: 16 parts, fluorinated graphite: 18 parts, coupling agent: 31 parts, of which:

[0038] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 40 parts, polyarylether sulfone ketone: 35 parts;

[0039] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 5 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0040] Functional fillers include:

[0041] Nano-montmorillonite silicate and barrier functional filler, and the mass...

Embodiment 2

[0052] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 19 parts, rutile titanium dioxide: 12 parts, additives: 4 parts, functional fillers: 56 parts, Propylene glycol: 4 parts, polyaryl ether sulfone ketone modified resin: 11 parts, silicon carbide micropowder: 22 parts, fluorinated graphite: 16 parts, coupling agent: 33 parts, of which:

[0053] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 70 parts, polyarylether sulfone ketone: 20 parts;

[0054] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 10 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0055] Functional fillers include:

[0056] Nano-montmorillonite silicate and barrier functional filler, and the ...

Embodiment 3

[0067] A zinc-aluminum composite heat-insulating coating with nano-silicon salt fillers provided in this example contains silicon acrylic emulsion: 19 parts, rutile titanium dioxide: 12 parts, additives: 4 parts, functional fillers: 56 parts, Propylene glycol: 4 parts, polyaryl ether sulfone ketone modified resin: 11 parts, silicon carbide micropowder: 22 parts, fluorinated graphite: 16 parts, coupling agent: 33 parts, of which:

[0068] The polyarylether sulfone ketone modified resin includes the following components in parts by mass: epoxy resin: 56 parts, polyarylether sulfone ketone: 26 parts;

[0069] The particle size of silicon carbide powder is 6 μm; the particle size of fluorinated graphite is 8 μm; the coupling agent is γ-aminopropyltriethoxysilane, γ-(2,3 glycidoxy)propyltrimethoxysilane, One or more mixtures of 3-methacryloxypropyltrimethoxysilane;

[0070] Functional fillers include:

[0071] Nano-montmorillonite silicate and barrier functional filler, and the m...