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Preparation method of inorganic hybrid nano phase change energy storage capsule

A nano-phase and hybridization technology, applied in microcapsule preparations, chemical instruments and methods, microsphere preparation, etc., can solve the problems of preparation technology of inorganic hybrid nano-organic phase change energy storage capsules that are rarely reported, and achieve improved thermal conductivity efficiency effect

Active Publication Date: 2017-11-28
广东威凯表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the preparation technology of inorganic hybrid nano-organic phase change energy storage capsules

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] First synthesize the amphiphilic ternary molecular brush polymer, which is prepared by the following steps:

[0036] Step 1 P(GMA-N 3 ) Synthesis of Main Chain A

[0037]Take 2 parts of ethyl 2-bromoisobutyrate initiator, 200 parts of glycidyl methacrylate (GMA), 200 parts of diphenyl ether, 3 parts of CuBr and 2 parts of N,N,N', N',N"-pentamethyldiethylenetriamine (PMDETA), under the protection of nitrogen, the temperature was controlled at 30 ° C, and the ATRP reaction was carried out for 1 hour to obtain polyglycidyl methacrylate with a degree of polymerization (DP) of 30 (PGMA);

[0038] Take 100 parts of polyglycidyl methacrylate (PGMA) (DP=30), 50 parts of NaN 3 and 300 parts of dimethylformamide (DMF), the temperature is controlled at 50°C, and the reaction is carried out for 24 hours to obtain P(GMA-N 3 ) main chain;

[0039] Step 2 Synthesis of three side chains

[0040] Synthesis of hydrophilic polymer side chain D: Take 100 parts of monomethoxypolyethyl...

Embodiment 2

[0051] First synthesize the amphiphilic ternary molecular brush polymer, which is prepared by the following steps:

[0052] Step 1 P(GA-N 3 ) Synthesis of Main Chain A

[0053] Take 2 parts of ethyl 2-bromoisobutyrate initiator, 200 parts of glycidyl acrylate (GA), 200 parts of diphenyl ether, 3 parts of CuBr and 2 parts of N,N,N',N' , N"-pentamethyldiethylenetriamine (PMDETA), under the protection of nitrogen, when the temperature is controlled at 30 ° C, perform ATRP reaction for 2 hours to obtain polyglycidyl methacrylate with a degree of polymerization (DP) of 60 ( PGA);

[0054] Take 100 parts of PGA (DP=60), 50 parts of NaN 3 and 300 parts of dimethylformamide (DMF), the temperature is controlled at 50°C, and the reaction is carried out for 24 hours to obtain P(GMA-N 3 ) main chain;

[0055] Step 2 Synthesis of three side chains

[0056] Synthesis of hydrophilic polymer side chain D: take 100 parts of monomethoxypolyethylene glycol (Mn=2000), 40 parts of 2-propynyl...

Embodiment 3

[0067] First synthesize the amphiphilic ternary molecular brush polymer, which is prepared by the following steps:

[0068] Step 1 P(GA-N 3 ) Synthesis of Main Chain A

[0069] Take 2 parts of ethyl 2-bromoisobutyrate initiator, 200 parts of glycidyl acrylate (GA), 300 parts of diphenyl ether, 3 parts of CuBr and 2 parts of N,N,N',N' , N"-pentamethyldiethylenetriamine (PMDETA), under the protection of nitrogen, the temperature was controlled at 30 ° C, and the ATRP reaction was carried out for 3 hours to obtain polyglycidyl methacrylate (PGA) with a degree of polymerization (DP) of 90 );

[0070] Take 100 parts of PGA (DP=90), 50 parts of NaN 3 and 300 parts of dimethylformamide (DMF), reacted at 50°C for 24 hours to obtain P(GMA-N 3 ) main chain.

[0071] Step 2 Synthesis of three side chains

[0072]Synthesis of hydrophilic polymer side chain D: take 100 parts of monomethoxypolyethylene glycol (Mn=2000), 40 parts of 2-propynylacetic acid, and 40 parts of 4-dimethylamin...

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Abstract

The invention relates to a preparation method of an inorganic hybrid nanophase-change energy storage capsule, which is characterized in that the steps include: dissolving 1-10 parts of amphiphilic ternary molecular brush polymer in 1-40 parts of dichloromethane and 1 to 40 parts of organic phase change materials, drop into 100 to 400 ℃ of water, stir at 28 oC to 32 oC to obtain a mixed solution, then heat and stir the mixed solution at a heating temperature of 48 oC to 52 oC, Stirring time is 28-32 minutes, then keep warm and stir for 28-32 minutes, cool to normal temperature to obtain "oil-in-water" nanophase-change material emulsion; add 1 ~5 parts of metal ions, react for 28~32 minutes, then add 1~5 parts of metal ion precipitant, carry out inorganic hybrid crosslinking reaction at room temperature for 1~2 hours, and obtain inorganic hybrid nanophase with stable structure Energy storage capsules. The invention introduces inorganic nanoparticles into the surface layer of the phase change energy storage capsule, thereby improving the thermal conductivity and stability of the phase change energy storage capsule.

Description

technical field [0001] The invention belongs to the field of phase change energy storage materials and self-assembled polymer materials, and in particular relates to a preparation method of an inorganic hybrid nano phase change energy storage capsule. Background technique [0002] In today's world, the energy shortage problem has become one of the important problems facing the world. As the continuous consumption and depletion of non-renewable energy become more and more prominent, improving energy utilization rate and developing renewable energy have become important issues facing human beings. In order to improve energy efficiency, humans have proposed the concept of green buildings. Green building refers to a building that saves resources to the greatest extent, provides healthy, applicable, efficient use, and harmonious coexistence with nature during the entire life cycle of the building. One of the core issues of green buildings is the control of indoor temperature, m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/14C08G81/02C09K5/06
Inventor 刘锋彭建兵陈嘉怡
Owner 广东威凯表面技术有限公司