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Anti-icing coating containing alkane phase change microcapsules and preparation method thereof

A phase-change microcapsule and anti-icing technology, which is applied in the direction of microcapsule preparation, microsphere preparation, coating, etc., can solve the problems that cannot meet the requirements of anti-icing coatings, and the phase change properties of paraffin wax mixture microcapsules cannot be precisely designed. , to achieve the effect of simple preparation process

Active Publication Date: 2011-12-07
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phase change properties of paraffin wax mixture microcapsules cannot be precisely designed, so they cannot meet the requirements of anti-icing coatings such as aerospace
[0005] In the existing anti-icing coating materials, there are no research reports or invention patents on the use of microcapsules with controllable phase transition properties to prevent supercooled water from freezing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Dissolve 5g of SMA in 95mL of deionized water, adjust the pH value to 8 with 1M NaOH solution, set the temperature at 60°C, and stir at a stirring speed of 600rpm until the solid powder is completely dissolved and the solution is clear to obtain a SMA solution. Mix 5 g of melamine, 8.6 mL of formaldehyde solution with a mass fraction of 37% and 20 mL of deionized water, control the temperature at 60 ° C, adjust the pH value to between 8 and 9 with 1M NaOH solution, and stir at a stirring speed of 600 rpm until the solution After clarification, a PMF prepolymer solution was obtained. Mix 15g of n-dodecane and 0.45g of n-hexadecane evenly, add the above SMA solution, stir at 60°C at a speed of 3000rpm for 10min to obtain an emulsion, then continue stirring at a speed of about 1200rpm, and adjust the pH with 1M citric acid to 4.6, and the emulsion was cooled to 45°C. Slowly add the PMF resin prepolymer to the emulsion dropwise, and the dropwise addition is completed withi...

Embodiment 2

[0035] Dissolve 6 g of SMA in 95 mL of deionized water, adjust the pH value to 8 with 1M NaOH solution, set the temperature at 60 ° C, and stir at a stirring speed of 600 rpm until the solid powder is completely dissolved and the solution is clear to obtain a SMA solution. Mix 4g of melamine, 8mL of formaldehyde solution with a mass fraction of 37% and 25mL of deionized water, control the temperature at 60°C, adjust the pH value to between 8 and 9 with 1M NaOH solution, and stir at a stirring speed of 600rpm until the solution is clear , to obtain the PMF prepolymer solution. Mix 10g of n-dodecane, 5g of n-tetradecane and 0.45g of n-tetradecane evenly, add the above SMA solution, stir at 55°C at a speed of 2700rpm for 15min to obtain an emulsion, then continue stirring at a speed of about 1300rpm, and use 1M citric acid was used to adjust the pH to 4.4, and the emulsion was cooled to 40°C. Slowly add the PMF resin prepolymer to the emulsion dropwise, and the dropwise addition...

Embodiment 3

[0039] Dissolve 7g of SMA in 105mL of deionized water, adjust the pH value to 8 with 1M NaOH solution, set the temperature at 60°C, and stir at a stirring speed of 400rpm until the solid powder is completely dissolved and the solution is clear to obtain an SMA solution. Mix 6g of melamine, 9mL of formaldehyde solution with a mass fraction of 40% and 18mL of deionized water, control the temperature at 60°C, adjust the pH value to between 8 and 9 with 1M NaOH solution, and stir at a stirring speed of 500rpm until the solution is clear , to obtain the PMF prepolymer solution. Mix 5g of n-dodecane, 10g of n-tetradecane and 0.15g of n-octadecane evenly, add the above SMA solution, stir at 65°C at a speed of 2400rpm for 12min to obtain an emulsion, then continue stirring at a speed of about 1400rpm, and use The pH was adjusted to 4.5 with 1M citric acid, and the emulsion was cooled to 45°C. Slowly add the PMF resin prepolymer to the emulsion dropwise, and the dropwise addition is c...

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PUM

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Abstract

The invention discloses icing-resisting paint containing alkane phase change microcapsules and a preparation method thereof. The icing-resisting paint comprises the following components by weight percent: 1-50% of alkane phase change microcapsules, 1-50% of nano particles with a particle size of 30-80 nm, 1-85% of hydrophobic resin, 0-30% of curing agent and 10-90% of solvent. The preparation method of the icing-resisting paint comprises the following steps: preparing the alkane phase change microcapsules; and evenly mixing the alkane phase change microcapsules with the nano particles, hydrophobic resin, curing agent and solvent, so as to obtain the paint. The icing-resisting paint has the advantages that the preparation process of the icing-resisting paint is simple; the paint contains the alkane phase change microcapsules which can inhibit supercooling phase change, the phase change temperature interval of the microcapsules is an icing temperature range, and the microcapsules can generate phase change nearby an ice point; and a coating prepared from the paint can inhibit supercooling water from freezing on the surface of the coating.

Description

Technical field: [0001] The invention relates to an anti-icing coating containing alkane phase-change microcapsules and a preparation method thereof, belonging to the anti-icing surface protection coating technology. Background technique: [0002] The combination of hydrophobic resin surface and nanoparticles has been paid attention to in the research of anti-icing coatings. At present, there have been some researches on hydrophobic resins and nano-particles anti-icing coatings. For example, Yan Guoping proposed a fluorine-containing Anti-icing nano-composite coating composed of silicone resin and nano-materials (Yan Guoping, Ai Chaowu, Li Liang, etc., "Anti-icing nano-composite coating and its application", CN 101358106A), Zhao Guozhi applied for the invention of microcapsules Patent (Zhao Guozhi, "anti-icing coating compound", CN101514270A), Gao et al. compounded silicone resin with acrylic resin and nanoparticles to construct an anti-icing coating with superhydrophobic st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D133/16C09D7/12B01J13/02
Inventor 袁晓燕朱孔营周建伟王爽祁恒治赵蕴慧
Owner TIANJIN UNIV
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