Phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and preparation method of phase change energy storage material

A phase-change energy storage material, polyvinyl chloride technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of complicated preparation methods, serious phase separation, and long time consumption, and achieve low price and high preparation method The effect of simplicity and few operation links

Inactive Publication Date: 2012-07-25
XUCHANG UNIV +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Technical problem to be solved by the present invention: overcome the current preparation of Na 2 SO 4 10H 2 O phase change energy storage materials have many disadvantages such as complex preparation methods, long time consumption, large amount of organic matter, large particles, small calorific value, poor thermal conductivity, and serious phase separation.

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
  • Phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and preparation method of phase change energy storage material
  • Phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and preparation method of phase change energy storage material
  • Phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and preparation method of phase change energy storage material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation: Weigh 0.15g of polyvinyl chloride into a clean grinding bottle, and add magnetron and 20ml tetrahydrofuran into the grinding bottle, stir the solution from milky to clear solution ①, set aside;

[0038] Measure 2ml of oleic acid into a clean beaker, add 10ml of absolute ethanol to the beaker, shake the beaker slightly until the two solutions are miscible, and obtain a mixed solution of oleic acid-ethanol for later use;

[0039] 2. Reaction process: weigh 4.0g Na 2 SO 4 In a clean small beaker, add a stirring magnet and 10ml deionized water into the beaker, stir in a constant temperature water bath at 33°C until completely dissolved; then the saturated Na 2 SO 4 The solution was placed in a water bath at 16°C, and at the same time, 1.5ml of the prepared oleic acid-ethanol mixed solution was added to Na 2 SO 4 Add dropwise to the solution and stir while dripping to obtain a large amount of white solid. Put the white solid and the solution into a centri...

Embodiment 2

[0041] 1. Preparation: Weigh 0.15g of polyvinyl chloride into a clean grinding bottle, and add magnetron and 20ml tetrahydrofuran into the grinding bottle, stir the solution from milky to clear solution ①, set aside;

[0042] Measure 2ml of oleic acid into a clean beaker, add 10ml of absolute ethanol to the beaker, shake the beaker slightly until the two solutions are miscible, and obtain a mixed solution of oleic acid-ethanol for later use;

[0043] 2. Reaction process: weigh 4.0gNa 2 SO 4 In a clean small beaker, add a stirring magnet and 10ml deionized water into the beaker, stir in a constant temperature water bath at 33°C until completely dissolved; then the saturated Na 2 SO 4 Put the solution in a water bath at 16°C, and at the same time take 1.75ml of prepared oleic acid-ethanol mixture to Na 2 SO 4 Add dropwise to the solution and stir while dripping to obtain a large amount of white solid. Put the white solid and the solution into a centrifuge tube and centrifuge...

Embodiment 3

[0046] 1. Preparation: Weigh 0.15g of polyvinyl chloride into a clean grinding bottle, and add magnetron and 20ml tetrahydrofuran into the grinding bottle, stir the solution from milky to clear solution ①, set aside;

[0047] Measure 2ml of oleic acid into a clean beaker, add 10ml of absolute ethanol to the beaker, shake the beaker slightly until the two solutions are miscible, and obtain a mixed solution of oleic acid-ethanol for later use;

[0048] 2. Reaction process: weigh 4.0gNa 2 SO 4 In a clean small beaker, add a stirring magnet and 10ml deionized water into the beaker, stir in a constant temperature water bath at 33°C until completely dissolved; then the saturated Na 2 SO 4 The solution was placed in a water bath at 20°C, and at the same time, 1.5ml of the prepared oleic acid-ethanol mixture was added to Na 2 SO 4 Add dropwise to the solution and stir while dripping to obtain a large amount of white solid. Put the white solid and the solution into a centrifuge tub...

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 sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and a preparation method of the phase change energy storage material. The material adopts phase change energy storage material of polyvinyl chloride coated Na2SO4.10H2O, the granularity is 100nm to 1.5um, the mass ratio of polyvinyl chloride to Na2SO4 is 15:400, and the product initial thermal value is larger than 190J/g. The preparation method comprises the following steps: firstly, putting polyvinyl chloride and tetrahydrofuran in a container, stirring the polyvinyl chloride and the tetrahydrofuran into clear solution 1, with the ration being 1.15g/20ml; secondly, preparing the pour Na2SO4 into saturated solution, stirring while dripping mixed solution of oleic acid and absolute ethyl alcohol into a water bath at 16 to 20 DEG C, so as to obtain microscale Na2SO4.10H2O solid, thirdly, performing centrifugation to remove liquid, and fourthly, adding the solution 1 into the solid obtained in the third step, and performing air seasoning at 25 DEG C, so as to obtain the phase change energy storage material. The phase change energy storage material has high latent heat, and is simple to prepare and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of synthesis of energy storage materials, in particular to a microscale polyvinyl chloride-coated Na 2 SO 4 10H 2 O phase change energy storage material and preparation method thereof. Background technique [0002] Energy is the basis for human survival and development. With the development of science and technology, human's demand for energy is increasing day by day, but at the same time, the utilization rate of energy is still not very high, and there is a lot of waste, which causes the supply of energy to become increasingly tense, thus driving a lot of scientific research on energy. research work. Although different alternative energy sources such as wind energy, solar energy, nuclear energy, and biomass energy have emerged and developed one after another, so far, they still cannot replace oil and coal as the main energy sources. Therefore, how to develop high-efficiency energy and effectively utilize energy ...

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): C09K5/06
Inventor 郑直王宇黄保军葛素香法文君李艳巧黄晚霞
Owner XUCHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap