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A kind of nanocomposite thermal insulation coating and preparation method thereof

A thermal insulation coating and nano-composite technology, applied in starch derivative coatings, coatings, etc., can solve the problems of inability to apply, inconvenient construction, and high thermal conductivity of thermal insulation coatings, preventing heat transfer, small porosity, and improved insulation. The effect of thermal properties

Active Publication Date: 2019-08-09
宁波运通新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of thermal insulation coating has a high thermal conductivity of 0.08-0.1W / (m K), and the thermal insulation efficiency is low
Due to the poor sagging and ductility of this kind of paint, it is almost impossible to apply it, and the construction is inconvenient. It can only be piled up by hand, resulting in uneven coating

Method used

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  • A kind of nanocomposite thermal insulation coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The nanocomposite thermal insulation coating of this embodiment includes a dispersion medium and a dispersion phase, and the mass ratio between the dispersion medium and the dispersion phase is 1-1.5:1.

[0030] The dispersion medium contains in parts by mass: 5-12 parts of high temperature resistant fiber, 0.5-1.5 parts of surfactant, 0.5-1.5 parts of thickener, 3-9 parts of binder and 70-90 parts of water. Wherein the binder includes polyacrylamide, hydroxypropyl methylcellulose and starch ether. The high temperature resistant fiber is one or a combination of carbon fiber, glass fiber, alumina fiber and aluminum silicate fiber. The surfactant is polyoxyethylene lauryl ether sulfosuccinic acid monoester disodium salt and / or sodium diisooctyl succinate sulfonate. The thickener is a mixture of one or more of methylcellulose, hydroxyethylcellulose, hydroxymethylcellulose and sodium hydroxymethylcellulose.

[0031] The dispersed phase contains in parts by mass: 10-20 par...

Embodiment 2

[0039] The difference between this example and the above example is that the nanocomposite thermal insulation coating in this example includes a dispersion medium and a dispersion phase, and the mass ratio between the dispersion medium and the dispersion phase is 1:1.

[0040] The dispersion medium contains in parts by mass: 5 parts of carbon fiber, 0.4 part of polyoxyethylene lauryl ether sulfosuccinic acid monoester disodium salt, 0.1 part of diisooctyl sodium sulfonate, 0.5 part of methyl cellulose, 0.5 parts of polyacrylamide, 2 parts of hydroxypropyl methylcellulose, 0.5 parts of starch ether, 70 parts of water.

[0041] The dispersed phase contains in parts by mass: 10 parts of titanium dioxide, 30 parts of vacuum ceramic microspheres, 5 parts of vitrified microspheres, 10 parts of fumed silica, and 2 parts of microsilica.

[0042] The preparation method of the nanocomposite thermal insulation coating of the present embodiment is as follows:

[0043] The first step: slu...

Embodiment 3

[0047] The difference between this example and the above example is that the nanocomposite thermal insulation coating in this example includes a dispersion medium and a dispersion phase, and the mass ratio between the dispersion medium and the dispersion phase is 1.5:1.

[0048] The dispersion medium contains in parts by mass: 12 parts of aluminum silicate fiber, 1 part of disodium lauryl polyoxyethylene ether sulfosuccinic acid monoester, 0.5 part of sodium diisooctyl sulfonate, hydroxyethyl cellulose 1.5 parts, 2 parts of polyacrylamide, 6 parts of hydroxypropyl methylcellulose, 1 part of starch ether, 90 parts of water.

[0049] The dispersed phase contains in parts by mass: 20 parts of silicon carbide powder, 50 parts of vacuum ceramic microspheres, 18 parts of vitrified microspheres, 15 parts of fumed silicon dioxide, and 10 parts of microsilica powder.

[0050] The preparation method of the nanocomposite thermal insulation coating of the present embodiment is as follows:...

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Abstract

The invention discloses a nano composite heat-insulating coating and a preparation method thereof. The nano composite heat-insulating coating comprises a dispersion medium and a dispersion phase, wherein the mass ratio of the dispersion medium to the dispersion phase is (1-1.5):1; the dispersion medium contains the following components in parts by weight: 5-12 parts of high-temperature-resistant fibers, 0.5-1.5 parts of a surfactant, 0.5-1.5 parts of a thickening agent, 3-9 parts of a bonding agent and 70-90 parts of water; the dispersion phase contains the following components in parts by weight: 10-20 parts of light shading powder, 45-83 parts of vacuum heat-insulating powder and 2-10 parts of micro silicon powder. The nano composite heat-insulating coating which has a high temperature heat-insulating function and is excellent in coating performance is prepared by taking the vacuum heat-insulating powder and the light shading powder as heat-insulating function materials, taking the high-temperature-resistant fibers as reinforcing materials and adding a functional filler used for reinforcing the flowability and the fusion ability of inorganic powder as well as an auxiliary having the functions of ductility, anti-settlement, anti-hanging flow and the like.

Description

technical field [0001] The invention relates to the field of industrial coatings, in particular to a nanocomposite thermal insulation coating and a preparation method thereof. Background technique [0002] In the production of petrochemical, textile printing and dyeing, metallurgical industry and other fields, heat flow transmission pipes, kilns, high-temperature valves, components and other equipment are used. These pipeline equipment have high temperature and need to be insulated to reduce heat loss. , while preventing the operator from being scalded. At present, there are two commonly used heat preservation measures. One is to use rock wool to wrap and add iron sheets. With the increase of time, the rock wool will gradually sink due to gravity, and it will be separated from the parts that need heat preservation. Insulation effect. At the same time, the heat preservation method of rock wool and iron sheet has a high thermal conductivity, generally above 0.1W / (m·K), the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D101/28C09D133/26C09D103/08C09D7/61C09D7/63C09D7/65C09D1/00
CPCC08L2201/08C08L2205/02C08L2205/025C08L2205/035C09D1/00C09D7/61C09D7/63C09D7/65C09D7/70C09D101/284C08L1/28C08L33/26C08L3/08C08L71/02C08K13/04C08K7/06C08K7/18C08K7/20C08K3/36C08K2003/2241C08K5/42C08L1/284C08K7/10C08K3/34C08K7/08C08K7/14C08L1/286
Inventor 魏莉
Owner 宁波运通新材料科技有限公司
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