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Preparation method of organic phase change energy storage composite material

A composite material and organic phase technology, which is applied in the preparation of microspheres, heat exchange materials, chemical instruments and methods, etc., can solve the problems of poor core material emulsification effect and affect the core material coating efficiency, etc., and achieve a wide range of industrial uses. , low cost, cheap and easy-to-obtain raw materials

Active Publication Date: 2012-10-17
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The traditional preparation methods of organic solid-liquid phase change energy storage materials, such as the preparation method disclosed in CN200510024707.7 and CN200810068422.7, which blend and emulsify the core material and shell material and then polymerize, cannot effectively make styrene and methyl Methyl acrylate is completely polymerized into corresponding polymers (polystyrene and polymethyl methacrylate), and the emulsification effect of the core material is not good, which further affects the coating efficiency of the shell material on the core material

Method used

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  • Preparation method of organic phase change energy storage composite material
  • Preparation method of organic phase change energy storage composite material
  • Preparation method of organic phase change energy storage composite material

Examples

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Effect test

Embodiment 1

[0036] Take 24g of stearic acid and place it in a 1000mL three-necked flask, heat it to 70°C, and after it is completely melted, add 240mL of an aqueous solution containing 2.0g of OP-10 and 1.6g of sodium dodecylbenzenesulfonate, while vigorously stirring mechanically, fully After 60 minutes of emulsification, the temperature was lowered to 50°C, and it was recorded as A emulsion. Take 24mL of styrene and place it in a 500mL three-neck flask, heat it to 50°C, add 200mL of an aqueous solution containing 2.0g of OP-10 and 2.0g of sodium dodecylbenzenesulfonate, and emulsify for 180min under vigorous mechanical stirring, denoted as B lotion. Add emulsion B into emulsion A, stir mechanically at 45°C for 60 minutes, add 80 mL of an aqueous solution containing 2.4 g of ammonium persulfate dropwise, continue the reaction for 4 hours, cool to room temperature, transfer the obtained emulsion to a 1000 mL beaker, and add After demulsification with 50 mL of sodium hydroxide solution wi...

Embodiment 2

[0042] Take 24g of stearic acid and place it in a 1000mL three-necked flask, heat it to 70°C, and after it is completely melted, add 240mL of an aqueous solution containing 2.0g of OP-10 and 1.6g of sodium dodecylbenzenesulfonate, while vigorously stirring mechanically, fully After 60 minutes of emulsification, the temperature was lowered to 60°C, and it was recorded as A emulsion. Take 12 mL of styrene and place it in a 500 mL three-neck flask, heat it to 60°C, add 200 mL of an aqueous solution containing 2.0 g of OP-10 and 2.0 g of sodium dodecylbenzenesulfonate, emulsify for 180 min under vigorous mechanical stirring, and record it as B Emulsion: Add B emulsion to A emulsion, mechanically stir at 25°C for 120 minutes, add 80 mL of an aqueous solution containing 1.2 g of ammonium persulfate dropwise, continue the reaction for 4 hours, cool to room temperature, and transfer the obtained emulsion to a 1000 mL beaker , adding 25mL of sodium hydroxide solution with a concentrati...

Embodiment 3

[0048] Take 24g of stearic acid and place it in a 1000mL three-necked flask, heat it to 70°C, and after it is completely melted, add 240mL of an aqueous solution containing 2.0g of OP-10 and 1.6g of sodium dodecylbenzenesulfonate, while vigorously stirring mechanically, fully After emulsification for 60 minutes, the temperature was lowered to 50°C, and it was recorded as emulsion A; 6 mL of styrene was placed in a 500 mL three-neck flask and heated to 50°C, and an aqueous solution containing 2.0 g of OP-10 and 2.0 g of sodium dodecylbenzenesulfonate was added 200mL, emulsified under vigorous mechanical stirring for 180min, and recorded as B emulsion; add B emulsion to A emulsion, mechanically stir at 25°C for 180min, add dropwise 80mL aqueous solution containing 0.6g ammonium persulfate, continue to react for 4h, cool After reaching room temperature, transfer the emulsion obtained by the reaction into a 1000mL beaker, add 75mL of sodium hydroxide solution with a concentration o...

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Abstract

The invention relates to a preparation method of an organic phase change energy storage composite material, which is mainly based on a two-phase interfacial polymerization method and comprises the following steps: at a certain temperature, when an oil-soluble core material is molten, emulsifying the oil-soluble core material and water by utilizing a surfactant to form small droplets; then, cooling to solidify the small droplets into small solid particles; and then, polymerizing a shell material on the surfaces of the particles to form the organic phase change energy storage composite materialwith a core-shell structure. Because the core material and the shell material are respectively emulsified and then mixed for reacting, thus the emulsifying effect is good; and the core material is changed into small solid particles after being cooled, thus the adsorption rate of the shell material can be improved, the coating efficiency is improved, and the physicochemical stability of the composite material is enhanced.

Description

【Technical field】 [0001] The invention relates to the technical field of preparation of novel functional composite materials, in particular to a preparation method of a phase-change energy storage material. 【Background technique】 [0002] Energy is the basis for the survival and development of human society. The vast majority of countries in the world are based on the use of conventional energy. This type of energy reserves are limited, non-renewable in the short term, and the storage capacity will gradually decrease with the increase of use. However, with the development of society, the human demand for energy is increasing. In addition, the utilization rate of energy is generally not high, which makes the world's energy supply increasingly tense. Improving energy efficiency has become an important issue in human society, and low-carbon economy, energy-saving and emission-reduction technologies have therefore received great attention. Phase change materials have the abil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F112/08C08F120/14C08F2/30C08F2/26C08F4/40B01J13/16C09K5/06
Inventor 孙蓉赵涛胡有根王依海赖茂柏
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI