Energy-storage phase-change film composite material, preparation method and application thereof

A thin-film composite material and energy storage phase change technology, which is applied in chemical instruments and methods, synthetic resin layered products, polyurea/polyurethane coatings, etc., can solve problems such as large heat generation, inability to quickly dissipate heat, and high product temperature. Achieve strong heat storage capacity, good heat transfer efficiency, and large contact area

Pending Publication Date: 2020-11-20
XIANGYANG SUNVALOR AEROSPACE FILMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of high heat generation in electronic products and technological processes, the heat cannot be quickly dissipated and the product temperature is too high, the present invention provides an energy storage phase change thin film composite material, which has the advantages of lightness, high enthalpy, reliability and durability, and can Meet the heat dissipation and temperature control requirements of electronic products and their processes

Method used

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  • Energy-storage phase-change film composite material, preparation method and application thereof
  • Energy-storage phase-change film composite material, preparation method and application thereof
  • Energy-storage phase-change film composite material, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Mix 40g of melamine, 37% formaldehyde solution and 152g of deionized water, adjust the pH to 7 with triethanolamine, keep the molar ratio of formaldehyde to melamine at 2, mix well and stir at 300r / min in a constant temperature oil bath at 70°C The prepolymerization reaction was carried out at a high speed, and a transparent viscous prepolymer solution was obtained after 30 minutes of reaction; 160g of phase-change paraffin was weighed and placed in a 250ml three-neck flask, 170g of deionized water was added, and the temperature was raised to 70°C to melt the phase-change paraffin. Add 6.4g of emulsifier Tween to dissolve it in water, then use an emulsifier at 10,000r / min to emulsify the paraffin wax for about 30 minutes to obtain a phase-change emulsion; use citric acid solution to adjust the pH of the phase-change emulsion to 4.5, raise the temperature to 80°C, and Slowly add the prepolymer solution dropwise under the stirring of 500r / min, wherein the weight ratio of t...

Embodiment 2

[0055] Mix 40g of melamine, 37% formaldehyde solution and 160g of deionized water, adjust the pH to 8 with triethanolamine, keep the molar ratio of formaldehyde to melamine at 2.5, mix well and stir at 300r / min in a constant temperature oil bath at 70°C The prepolymerization reaction was carried out at a high speed, and a transparent viscous prepolymer solution was obtained after 30 minutes of reaction; 160g of C with a high phase change enthalpy value was weighed 18 Place n-paraffin paraffin in a 250ml three-necked flask, add 160g of deionized water, and raise the temperature to 70°C to melt the phase-change paraffin, add 8g of emulsifier Tween to dissolve it in water, and then use a 20000r / min emulsifier to treat the paraffin Perform emulsification for about 30 minutes to obtain a phase change emulsion; use citric acid solution to adjust the pH of the phase change emulsion to 4.5, raise the temperature to 80°C, and slowly add the prepolymer solution dropwise under stirring at...

Embodiment 3

[0061] Mix 40g of melamine, 37% formaldehyde solution and 168g of deionized water, adjust the pH to 8.5 with triethanolamine, keep the molar ratio of formaldehyde to melamine at 3, mix well and stir at 300r / min in a constant temperature oil bath at 70°C The prepolymerization reaction was carried out at a high speed, and a transparent viscous prepolymer solution was obtained after 30 minutes of reaction; 160g of phase-change paraffin was weighed and placed in a 250ml three-neck flask, 150g of deionized water was added, and the temperature was raised to 70°C to melt the phase-change paraffin. Add 9.6g of emulsifier Tween to dissolve it in water, and then use a 30000r / min emulsifier to emulsify the paraffin wax for about 30 minutes to obtain a phase-change emulsion; use citric acid solution to adjust the pH of the phase-change emulsion to 4.5, raise the temperature to 80°C, and Slowly add the prepolymer solution dropwise under the stirring of 500r / min, wherein the weight ratio of ...

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Abstract

The invention discloses an energy-storage phase-change film composite material, a preparation method and application thereof. The energy-storage phase-change film composite material comprises a phase-change coating, pressure-sensitive adhesive layers attached to two surfaces of the coating and polyester protective films on two sides of the coating, wherein the phase-change coating is obtained by mixing an adhesive, an organic solvent and a phase-change microcapsule material to prepare slurry, coating the surface of a polyester film with the slurry and performing high-temperature drying, and the polyester film protective layer is obtained by coating the polyester film with a pressure-sensitive adhesive and drying at high temperature. According to the invention, the product can be used multiple times at 130 DEG C and under the pressure of 1MPa, and has good energy storage and temperature control capabilities and durability; and the energy-storage phase-change film composite material is high in phase-change enthalpy value, high in heat storage and absorption capacity, small in thickness, high in temperature control capacity, good in bendability, capable of being attached to a plane, capable of being rolled into the coiled material, convenient to store and use, capable of adapting to various machining and using environments, suitable for being used in various scenes and capable ofconducting good heat management on various electronic products.

Description

technical field [0001] The invention belongs to the technical field of electronic energy storage materials, and in particular relates to a microcapsule phase change material for energy storage and temperature control and its coating application. Especially phase change thin film materials used for energy storage and temperature control of electronic devices. Background technique [0002] With the high integration of electronic devices and the miniaturization and light weight of electronic devices, the heat production is getting higher and higher, and the requirements for heat dissipation and temperature control are becoming more and more stringent. More effective materials and technologies must be used for electronic devices. Not only that, in the production process of some electronic products, the reasonable use of phase change materials can also prevent the impact of high temperature on the process and greatly improve production efficiency. [0003] Among the many phase c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/36B32B33/00B32B7/12B32B37/12C08J7/04C09D175/04C09D133/04C09D161/28C08L67/04
CPCB32B27/08B32B27/36B32B33/00B32B7/12B32B37/1284C08J7/042C09D175/04C09D133/04C08J2367/02C08J2433/04C08J2475/04B32B2255/10B32B2307/30B32B2307/546B32B2307/302C08L61/28C08L91/06
Inventor 武鹏黄海龙权昌焕尹鹏李凤宇冯强辉李航黄明伟赵媛
Owner XIANGYANG SUNVALOR AEROSPACE FILMS CO LTD
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