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Water-based nano thermal insulation coating and preparation method thereof

A nano-coating technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient adhesion between coatings and equipment pipelines, paint detachment, influence of thermal insulation effect, etc., and achieve excellent adhesion performance. , Improve adhesion, excellent thermal insulation effect

Pending Publication Date: 2022-03-11
常州艾肯智造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nowadays, there are many kinds of thermal insulation coatings on the market, but when the coatings disclosed so far are applied to the surface of equipment pipes, their heat insulation effect is better, but the adhesion between the coatings and equipment pipelines cannot meet our requirements. requirements, and after working in a high-temperature environment for a period of time, the coating is easy to separate from the surface of the pipeline, which affects the heat insulation effect. Therefore, the application discloses a water-based nano-thermal insulation coating and its preparation method to solve this technical problem

Method used

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  • Water-based nano thermal insulation coating and preparation method thereof
  • Water-based nano thermal insulation coating and preparation method thereof

Examples

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Embodiment 1

[0036] A preparation method of water-based nano thermal insulation coating, comprising the following steps:

[0037] (1) Take sodium hydroxide and tetrahydrofuran, mix well, the concentration of the mixed solution is 4mol / 11L, add trifluoroethanol under nitrogen atmosphere, react at 28°C for 1.2h, cool down to 0°C, add pentafluorostyrene, tetrahydrofuran mixed solution, The concentration of the mixed solution is 2mol / 3L, continue to react for 1h, heat up to 70°C and reflux for 18h, cool after reaction, quench with ice water, extract the organic phase, wash with saturated brine, and purify to obtain the fluorine monomer. The molar ratio of the pentafluorostyrene, trifluoroethanol and sodium hydroxide is 1:1:2.

[0038] Take the emulsifier and deionized water, mix them evenly, and obtain the emulsified aqueous solution;

[0039] Take 1 / 2 amount of emulsified aqueous solution, 1 / 2 amount of ammonium persulfate, and 2 / 3 amount of comonomer, and mix them evenly to obtain solution ...

Embodiment 2

[0049] A preparation method of water-based nano thermal insulation coating, comprising the following steps:

[0050] (1) Take sodium hydroxide and tetrahydrofuran, mix well, the concentration of the mixed solution is 4mol / 11L, add trifluoroethanol under nitrogen atmosphere, react at 29°C for 1.1h, cool down to 0°C, add pentafluorostyrene, tetrahydrofuran mixed solution, The concentration of the mixed solution is 2mol / 3L, continue to react for 1.1h, heat up to 72°C and reflux for 17h, cool after reaction, quench with ice water, extract the organic phase, wash with saturated brine, and purify to obtain fluorine monomer. The molar ratio of the pentafluorostyrene, trifluoroethanol and sodium hydroxide is 1:1:2.

[0051] Take the emulsifier and deionized water, mix them evenly, and obtain the emulsified aqueous solution;

[0052] Take 1 / 2 amount of emulsified aqueous solution, 1 / 2 amount of ammonium persulfate, and 2 / 3 amount of comonomer, and mix them evenly to obtain solution A;...

Embodiment 3

[0062] A preparation method of water-based nano thermal insulation coating, comprising the following steps:

[0063] (1) Take sodium hydroxide and tetrahydrofuran, mix well, the concentration of the mixed solution is 4mol / 11L, add trifluoroethanol under nitrogen atmosphere, react at 30°C for 1h, cool down to 0°C, add pentafluorostyrene, tetrahydrofuran mixed solution, mix The concentration of the solution is 2mol / 3L, continue to react for 1.2h, heat up to 75°C and reflux for 16h, cool after reaction, quench with ice water, extract the organic phase, wash with saturated brine, and purify to obtain the fluorine monomer. The molar ratio of the pentafluorostyrene, trifluoroethanol and sodium hydroxide is 1:1:2.

[0064] Take the emulsifier and deionized water, mix them evenly, and obtain the emulsified aqueous solution;

[0065] Take 1 / 2 amount of emulsified aqueous solution, 1 / 2 amount of ammonium persulfate, and 2 / 3 amount of comonomer, and mix them evenly to obtain solution A;...

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Abstract

The invention discloses a water-based nano thermal insulation coating and a preparation method thereof, during preparation, the coating prepared from components such as an acrylic polyurethane emulsion, a dispersing agent, a defoaming agent, a wetting agent, a coalescing agent, a pH regulator, a thermal insulation filler and the like has excellent thermal insulation performance; according to the scheme, fluorine and silicon monomers are introduced into the acrylate emulsion during preparation, so that the corrosion resistance of the coating can be improved, the hydrophobicity and the chemical medium resistance of the coating are excellent, the crosslinking sites between the coatings can be improved, the crosslinking density of all the components is improved, the adhesive force of the coating and a base material can be improved, and the corrosion resistance of the coating is improved. And the barrier property to corrosive media is further improved. The process design is reasonable, the component proportion is appropriate, when the coating is applied to the surface of a pipeline, the heat preservation and heat insulation effect is excellent, the coating surface is hydrophobic, the corrosion resistance is excellent, and high practicability is achieved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation coatings, in particular to a water-based nano thermal insulation coating and a preparation method thereof. Background technique [0002] Energy competition is becoming increasingly fierce, and energy issues have become a bottleneck restricting my country's economic development. In order to effectively alleviate energy issues, energy conservation and consumption reduction has become an important task for industrial enterprises, and it is essential to take thermal insulation measures for equipment and pipelines. At present, most of the industrial equipment with temperature adopts the wrap-type heat insulation method for heat preservation. In the actual use process, the heat insulation system has problems such as high thermal conductivity, easy moisture absorption of heat insulation materials, complicated wrapping process, and poor heat insulation effect. Research and development of therma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/08C09D7/61C09D7/62C08F8/20C08F8/42C08F220/18C08F220/14C08F220/20C08F220/06C08G18/12C08G18/34C08G18/42C08G18/66C08G18/62
CPCC09D175/14C09D5/08C09D7/61C09D7/62C08F8/20C08F8/42C08F220/1804C08G18/12C08G18/348C08G18/42C08G18/6659C08K7/28C08K9/04C08K9/06C08K3/36C08K3/042C08K13/06C08F220/14C08F220/20C08F220/06C08G18/6295
Inventor 陈震翔邱绵
Owner 常州艾肯智造科技有限公司
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