Heat preservation and insulation heavy duty anti-corrosion coating with low thermal conductivity and preparation method thereof

A low thermal conductivity, thermal insulation technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor temperature resistance and unusability of coatings, and achieve obvious adhesion and heat blocking Transmission, excellent anti-corrosion effect

Active Publication Date: 2012-03-21
SHANGHAI HILONG SHINE NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature resistance of the coating is not good, so it cannot be used at a temperature above 150°C

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A thermal insulation heavy-duty anti-corrosion coating with low thermal conductivity, the mass percentage of its raw material composition is:

[0042] Porous airgel 7%, using products from Cabot Corporation or Allison Asia Pacific Electronics Co., Ltd.;

[0043] Novolak epoxy resin 35%;

[0044] Modified amine curing agent 12%;

[0045] Solvent 20%;

[0046] Titanate coupling agent 3%;

[0047] Defoamer 0.01%;

[0048] Dispersant 1%;

[0049] Thixotropic agent 1.5%;

[0050] Zinc phosphate 6.78%;

[0051] Titanium dioxide 7%;

[0052] Potassium titanate whiskers 6.71%.

[0053] The preparation method of the thermal insulation heavy-duty anti-corrosion coating with low thermal conductivity comprises the following steps:

[0054] (1) Add a surfactant to the novolac epoxy resin solution and disperse it evenly;

[0055] (2) Add porous airgel with a particle size of 5 μm to 20 μm and a thermal conductivity of 0.009 to 0.02 W / (m K) into the novolac epoxy resin solut...

Embodiment 2

[0059]A thermal insulation heavy-duty anti-corrosion coating with low thermal conductivity, the mass percentage of its raw material composition is:

[0060] Porous airgel 5.5%;

[0061] Novolak epoxy resin 40%;

[0062] Modified amine curing agent 15%;

[0063] Solvent 16%;

[0064] Titanate coupling agent 2%;

[0065] Defoamer 0.05%;

[0066] Dispersant 0.8%;

[0067] Thixotropic agent 1.0%;

[0068] Zinc phosphate 5.93%;

[0069] Titanium dioxide 5.5%;

[0070] Potassium titanate whiskers 8.22%.

[0071] The preparation method of the heat-insulating heavy-duty anti-corrosion coating with low thermal conductivity is shown in Example 1.

Embodiment 3

[0073] A thermal insulation heavy-duty anti-corrosion coating with low thermal conductivity, the mass percentage of its raw material composition is:

[0074] Porous airgel 4%;

[0075] Novolak epoxy resin 45%;

[0076] Modified amine curing agent 18%;

[0077] Solvent 12%;

[0078] Titanate coupling agent 1.5%;

[0079] Defoamer 0.08%;

[0080] Dispersant 0.5%;

[0081] Thixotropic agent 0.8%;

[0082] Zinc phosphate 4.0%

[0083] Titanium dioxide 4.0%

[0084] Potassium titanate whiskers 10.12%.

[0085] The preparation method of the heat-insulating heavy-duty anti-corrosion coating with low thermal conductivity is shown in Example 1.

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Abstract

The invention relates to a heat preservation and insulation heavy duty anti-corrosion coating with low thermal conductivity and a preparation method thereof. The heat preservation and insulation heavy duty anti-corrosion coating comprises phenolic epoxy resins, porous aerogel, inorganic pigment fillers, a surfactant, a solvent and auxiliary agents. The preparation method comprises the following steps: 1) adding the surfactant into a solution of the phenolic epoxy resins and uniformly dispersing the surfactant; 2) adding the porous aerogel, carrying out stirring, and carrying out high speed dispersion at first and ultrasonic dispersion next; 3) adding an antifoaming agent, a dispersant, an adhesion promoter and a thixotropic agent, and carrying out dispersion; 4) sequentially adding the inorganic pigment fillers, and carrying out high speed dispersion until the particle size of the coating is less than 80 mu m so as to obtain the coating. The coating provided in the invention has good corrosion resistance, temperature resistance, insulating properties and adhesiveness, has thermal conductivity of 0.04 w/m.k and can be extensively used in high temperature pipelines of chemical plants and power plants, in storage equipment for oil products and in housing of transportation pipelines; the preparation method is simple and is easy for industrial production.

Description

Technical field [0001] The present invention belongs to the field of petrochemical industry and involves a low -heat insulation coating and preparation method with a low heat -conducting coefficient. Background technique [0002] Thermal insulation coating is a functional coating that plays the actual insulation and insulation. It is usually manufactured with relatively low thermal conductivity.Thermal insulation coatings are coated with professional requirements on the surface of high -temperature work with professional requirements to form armal insulation coating, so as to avoid directly acting on the surface of the metal substrate on the surface of the metal substrate.It becomes a barrier on the surface of the metal substrate heating at a high temperature medium, which forms an effective protection of the substrate.Thermal insulation coatings can also be applied to the surface of the pipeline, which plays the role of heat insulation, so that the temperature of the fluid in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/04C09D7/12C09D5/08C09D5/00
Inventor 丁武斌杨铭杜传芹李芳
Owner SHANGHAI HILONG SHINE NEW MATERIAL
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