Preparation method of super-hydrophobic coating with phase change function

A superhydrophobic coating and superhydrophobic technology, which is applied in the direction of microsphere preparation, coating, microcapsule preparation, etc., can solve the problems of undisclosed preparation methods, achieve superhydrophobic phase change heat preservation, simple preparation method, convenient and large area The effect of construction

Active Publication Date: 2014-03-26
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation method is not disclosed

Method used

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  • Preparation method of super-hydrophobic coating with phase change function
  • Preparation method of super-hydrophobic coating with phase change function
  • Preparation method of super-hydrophobic coating with phase change function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Add 20g deionized water, emulsifier (a mixture of 0.08g sodium dodecylsulfonate and 0.08g OP-10), 0.2g sodium bicarbonate into a four-neck bottle, heat up to 75°C after isolating oxygen, add 3g of methyl methacrylate and 4g of 0.5% potassium persulfate aqueous solution until a faint blue light appears in the reaction to form a seed emulsion. After keeping warm for 0.5 hours, raise the temperature to 80°C, slowly add a mixture of 3g methyl methacrylate, 3g butyl acrylate and 0.4g hydroxyethyl methacrylate, at the same time, continue to drop 6g of 0.5% potassium persulfate aqueous solution. After the dropwise addition and reaction for 0.5 hours, slowly add 1g methyl methacrylate, 3g butyl acrylate, 0.6g methacryloxypropyl triisopropoxysilane and 4g dodecafluoroheptyl methacrylate dropwise At the same time, continue to dropwise add 12g0.5% potassium persulfate aqueous solution. After the dropwise addition was completed, the reaction was continued for 3 to 4 hours. Th...

Embodiment 2

[0034] 1) Add 20g deionized water, emulsifier (a mixture of 0.06g sodium dodecylsulfonate and 0.06g OP-10), 0.2g sodium bicarbonate into a four-neck bottle, heat up to 75°C after isolating oxygen, add 2g of methyl methacrylate and 3g of 0.5% aqueous solution of potassium persulfate until a faint blue light appears in the reaction to form a seed emulsion. After 0.5 hours of heat preservation, the temperature was raised to 80° C., and a mixture of 3 g of methyl methacrylate and 0.7 g of hydroxyethyl methacrylate was slowly added. At the same time, 6 g of 0.5% potassium persulfate aqueous solution was continued to be added dropwise. After the dropwise addition was completed and reacted for 0.5 hours, slowly add dropwise a mixture of 2g methyl methacrylate, 4g butyl acrylate, 1g methacryloxypropyl triisopropoxysilane and 3g trifluorooctyl methacrylate. Mixed solution, at the same time, continue to dropwise add 12g of 0.5% potassium persulfate aqueous solution. After the dropwise ...

Embodiment 3

[0038] 1) Add 20g of deionized water, emulsifier (a mixture of 0.08g of sodium dodecylsulfonate and 0.08g of OP-10), and 0.2g of sodium bicarbonate into a four-necked bottle, and heat up to 75°C after blocking oxygen, and add 3g of methyl methacrylate and 4g of 0.5% potassium persulfate aqueous solution until a faint blue light appears in the reaction to form a seed emulsion. After 0.5 hours of heat preservation, the temperature was raised to 80° C., and a mixture of 6 g of butyl methacrylate and 1 g of hydroxyethyl methacrylate was slowly added. At the same time, 6 g of 0.5% potassium persulfate aqueous solution was continued to be added dropwise. After the dropwise addition was completed and reacted for 0.5 hours, a mixed solution of 6g butyl methacrylate, 2g vinyltriethoxysilane and 4g trifluorooctyl methacrylate was slowly added dropwise, and at the same time, 12g0. 5% potassium persulfate in water. After the dropwise addition was completed, the reaction was continued for...

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Abstract

The invention discloses a preparation method of a super-hydrophobic coating with a phase change function applied to the fields of a building exterior wall and a thermal insulation pipeline, and relates to the technical fields of coatings and general heat insulation. The super-hydrophobic phase-change coating with a micro-nano secondary structure is built by a composite water-based fluorine silicone acrylic emulsion, an organic phase-change microcapsule and nano particles. The fluorine silicone acrylic emulsion, the organic phase-change microcapsule, the nano particles, a defoamer and water are evenly mixed, and then dispersed by adopting a high-speed disperser or an ultrasonic crusher for 0.3-2 hours, so as to obtain the super-hydrophobic coating. The preparation method disclosed by the invention is simple, the prepared super-hydrophobic coating has heat-insulating and self-cleaning properties, and large-area construction is facilitated.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic coating with a phase change function used in the field of building exterior walls and thermal insulation pipelines, and relates to the technical fields of coatings and general heat insulation. Background technique [0002] Insulation coatings are more and more widely used in oil pipelines, heating pipelines and construction industries. Chinese patent CN102367353A discloses "a low thermal conductivity composite thermal insulation coating and its preparation method". The coating uses phenolic resin as a film-forming substance, and airgel and hollow glass microspheres are used as low thermal conductivity materials. After compounding, a composite coating is prepared. The thermal conductivity can reach 0.04W / m.K. Chinese patent CN102070951A discloses "A thermal insulation coating and its preparation method". The coating uses water-based emulsion as the main film-forming substance, hollow c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D133/08C09D133/14C09D133/16C09D7/12C08F220/18C08F220/22C08F230/08C08F220/14C08F220/28C08F2/26B01J13/14
Inventor 周建伟刘玮莉李春漫常维纯刘诚张志恒李国平
Owner PIPECHINA SOUTH CHINA CO
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