Unlock instant, AI-driven research and patent intelligence for your innovation.

Inorganic salt phase change energy storage microcapsule as well as preparation method and application thereof

A phase-change energy storage and microcapsule technology, applied in the field of materials, can solve the problems of poor durability and fire resistance, volatile environment, low phase-change temperature, etc., to solve strict transportation and storage conditions, widen the scope of application, and good thermal conductivity. Effect

Active Publication Date: 2020-04-17
INST OF CHEM CHINESE ACAD OF SCI
View PDF14 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the core materials of phase change energy storage microcapsules are organic phase change core materials, which have produced a series of problems such as low phase transition temperature, volatile environment pollution, poor durability and fire resistance, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inorganic salt phase change energy storage microcapsule as well as preparation method and application thereof
  • Inorganic salt phase change energy storage microcapsule as well as preparation method and application thereof
  • Inorganic salt phase change energy storage microcapsule as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1, NaOH phase change energy storage microcapsules

[0056] Grind in NaOH with a pulverizer until the particle size is below 100 μm for later use.

[0057] Disperse 10g NaOH in 50ml of toluene, dissolve 0.5g maleic anhydride in toluene, absorb under mechanical stirring conditions for 1h, pour off the toluene, add 100ml of n-hexane, inject 4g DVB monomer and 0.4g AIBN solution with a syringe the above system. Under anhydrous and oxygen-free conditions, the reaction temperature was 70° C., and mechanical stirring was performed for 24 hours. After the reaction was completed, it was washed twice with n-hexane (toluene). After drying, the NaOH phase change energy storage microcapsule dry powder is obtained.

[0058] From the scanning electron microscope photos, the size of NaOH phase-change energy storage microcapsules is 1-100 μm (such as figure 1 Shown), the obtained NaOH phase change energy storage microcapsule dry powder was washed with water and centrifuged t...

Embodiment 2

[0060] Embodiment 2: Composite Fe 2 o 3 Granular NaOH phase change energy storage microcapsules

[0061] Grind in NaOH with a pulverizer until the particle size is below 100 μm for later use. Disperse 10g NaOH in 50ml of toluene, dissolve 0.5g maleic anhydride in toluene, absorb under mechanical stirring conditions for 1h, pour off the toluene, add 100ml of n-hexane, inject 4g DVB monomer and 0.04g AIBN solution with a syringe The above system, while adding 15nm to 20nm Fe in the system 2 o 3 Granules, under anhydrous and oxygen-free conditions, the reaction temperature is 70°C, and mechanically stirred for 24h. After the reaction was completed, it was washed twice with n-hexane (toluene). After drying, the phase change energy storage microcapsule dry powder of NaOH is obtained.

[0062] The size of the phase-change energy-storage microcapsules of NaOH is 1-100 μm. After washing and centrifuging the dry powder of the phase-change energy-storage microcapsules of NaOH thre...

Embodiment 3

[0064] Example 3, Composite salt LiCl(37)-LiOH(63) phase change energy storage microcapsules

[0065] Grind 10g LiCl and 9.615g LiOH into powder and put them into a crucible, the molar ratio of the two is 37:63. Place in a tube furnace, under a nitrogen atmosphere, raise the temperature to 650°C at a heating rate of 5°C / min, and get the compound salt LiCl(37)-LiOH(63) after cooling down to room temperature, and grind it to below 100μm with a pulverizer for later use .

[0066] Disperse 10g of the above-mentioned compound salt in 50ml of toluene, dissolve 0.5g of maleic anhydride in toluene, absorb under mechanical stirring conditions for 1h, pour off the toluene, add 100ml of n-hexane, and inject 4g of DVB monomer and 0.4g of AIBN solution with a syringe Inject the above system. Under anhydrous and oxygen-free conditions, the reaction temperature was 70° C., and mechanical stirring was performed for 24 hours. After the reaction was completed, it was washed twice with n-hexa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an inorganic salt phase change energy storage microcapsule as well as a preparation method and application thereof. Through high-molecular polymer coating, the problem of melt flow of inorganic salt phase change materials can be solved. Metal or metal oxide particles are absorbed, or graphene or carbon nanotubes are adopted in the forming process of a polymer shell, so that the heat-conducting property is improved. The inorganic salt phase change energy storage microcapsule provided by the invention has the advantages of medium-high temperature phase change temperature, high enthalpy value and good heat-conducting property, and is easy to blend with a high polymer material matrix.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a phase change energy storage microcapsule and a preparation method thereof, in particular to an inorganic salt phase change energy storage microcapsule, a preparation method and an application thereof. Background technique [0002] Energy is an important material basis of the national economy. With the rapid development of industry, the demand for energy is increasing day by day, so the development of new energy and the improvement of the utilization rate of new energy provide a new way of thinking to solve energy problems. [0003] Therefore, in order to better utilize energy efficiently, phase change energy storage materials have been widely used. The use of encapsulation technology to prepare microcapsule phase change materials can effectively solve the problems of leakage, phase separation and corrosion of phase change materials, help to improve the application performance of phase c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/14C09K5/06
CPCB01J13/14C09K5/063
Inventor 王倩
Owner INST OF CHEM CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com