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Thermal energy storage spacing bar based on ethylene-vinyl acetate copolymer and preparation method of spacing bar

A technology of spacer and copolymer, which is applied to the field of heat storage and energy storage spacer based on ethylene-vinyl acetate copolymer and its preparation, can solve the problems of affecting the thermal insulation effect of insulating glass, no fundamental solution, and large thermal conductivity of aluminum. , to achieve the effect of improving energy saving and heat preservation effect, prolonging life and improving heat preservation.

Active Publication Date: 2014-06-25
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional insulating glass is mostly separated by aluminum material, which affects the insulation effect of the insulating glass due to the high thermal conductivity of aluminum, and causes condensation and mildew of the insulating glass to leak. In severe cases, it may be caused by the inner and outer glass. Excessive stress caused the insulating glass to burst during transportation and installation
Although aluminum-containing composite spacers can alleviate the above problems, they still have not been fundamentally resolved

Method used

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  • Thermal energy storage spacing bar based on ethylene-vinyl acetate copolymer and preparation method of spacing bar
  • Thermal energy storage spacing bar based on ethylene-vinyl acetate copolymer and preparation method of spacing bar
  • Thermal energy storage spacing bar based on ethylene-vinyl acetate copolymer and preparation method of spacing bar

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Effect test

Embodiment 1

[0033] Preparation of bimodal phase-change substances: Take 20 grams of phase-change paraffin (melting point: 28°C) and 80 grams of polyethylene wax, crush them with a pulverizer, put them into a three-necked bottle, put the three-necked bottle in an oil bath and heat up to 100°C, stir After 50 minutes, it was taken out, cooled, and pulverized to obtain a bimodal phase change substance.

Embodiment 2

[0035] Preparation of bimodal phase-change substances: Take 30 grams of phase-change paraffin (melting point: 28°C) and 70 grams of polyethylene wax, pulverize them with a pulverizer, put them into a three-necked bottle, put the three-necked bottle in an oil bath, heat up to 110°C, and stir After 45 minutes, it was taken out, cooled and pulverized to obtain a bimodal phase change substance.

Embodiment 3

[0037] Preparation of bimodal phase-change substances: take 25 grams of phase-change paraffin (melting point: 28°C) and 75 grams of polyethylene wax, pulverize them with a pulverizer, put them into a three-necked bottle, put the three-necked bottle in an oil bath, heat up to 120°C, and stir After 40 minutes, it was taken out, cooled, and pulverized to obtain a bimodal phase change substance.

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Abstract

The invention discloses a spacing bar which is applicable to hollow glass and has a thermal energy storage function. The spacing bar takes an ethylene-vinyl acetate copolymer as a main component, and contains a bimodal phase change material and a porous material with a moisture absorbing component; as general super spacing bars, the spacing bar has such characteristics as being flexible, easy to process and shape, convenient to use, low in thermal conductivity and the like; moreover, due to the bimodal phase change material, the spacing bar has the functions of storing thermal energy and balancing a microenvironment of the hollow glass, i.e., the phase change material absorbs or releases heat energy when outdoor temperature is increased or reduced to balance increase or decrease in heat energy due to temperature rise or drop on the outer surface of the glass, so that a micro-climate in the hollow glass is kept constant and influence on service life and an energy-saving effect of the hollow glass due to air leakage in case of deformation or cracking of the spacing bar under a pressure difference inside and outside the glass is avoided; moreover, the hollow glass prepared from the spacing bar can be effectively protected from exploding in case of an excessive indoor and outdoor temperature difference in a cold region.

Description

technical field [0001] The invention relates to a method for preparing a functional spacer for insulating glass, in particular to a spacer for insulating glass with heat storage and energy storage functions, and belongs to the technical field of hollow glass production. Background technique [0002] The energy consumption of doors, windows and curtain walls accounts for a large proportion of building energy consumption, so how to improve the energy-saving effect of doors, windows and curtain walls is an important link to realize building energy conservation. The use of insulating glass has made an important contribution to the energy saving of doors and windows. However, the traditional insulating glass is mostly separated by aluminum material, which affects the insulation effect of the insulating glass due to the high thermal conductivity of aluminum, and causes condensation and mildew of the insulating glass to leak. In severe cases, it may be caused by the inner and outer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L71/08C08K13/02C08K5/01C08K3/34C08K3/22C08K5/098C08J9/10B32B27/06B32B27/32B32B27/30
CPCB32B27/06B32B27/30B32B27/32B32B2307/30C08L23/0853C08L2205/03C08L23/06C08L91/06C08K13/02C08L71/02
Inventor 郭静有祥康管福成宫玉梅张森刘元法
Owner DALIAN POLYTECHNIC UNIVERSITY
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