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Layered vacuum insulation board core material and preparation method thereof

A technology of vacuum insulation panels and core materials, which is applied in heat exchange equipment, chemical instruments and methods, glass/slag layered products, etc. Simple, high thermal insulation effect

Inactive Publication Date: 2012-08-08
周介明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, the literature shows that whether the fiber diameter is uniform will also affect the thermal conductivity of the vacuum insulation panel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] A layered vacuum insulation panel core material with a thermal conductivity of 0.02W / m·K, which is composed of 25 layers of glass fiber mats with a thickness of 1mm. The thermal conductivity of the vacuum insulation panel prepared by vacuuming is very low, which can reach 0.002W / m·K.

[0032] When the layered vacuum insulation board core material is prepared, the specific process steps are as follows:

[0033] (1) Take continuous glass fibers with uniform diameter distribution, the fiber diameter is 6-13 μm, and the fiber length is 5-20 mm;

[0034] (2) Stir the continuous glass fiber with water, thickener and dispersant evenly, and then send it to the mixing tank for dilution, and the dilution concentration is 0.2%; the dilution concentration of the thickener and dispersant is 1%;

[0035] (3) Send the diluted continuous glass fiber slurry into the storage tank;

[0036] (4) Send the slurry in the stock tank into the head box, and use the forming wire to dehydrate t...

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Abstract

The invention discloses a layered vacuum insulation board core material and a preparation method thereof. The thickness of the vacuum insulation board core material is between 5 and 50mm, the coefficient of heat conductivity is between 0.018 and 0.03 W / mK, and the vacuum insulation board core material is formed by overlying a plurality of layers of glass fiber mats and can be prepared into vacuum insulation boards with high-efficient thermal insulation. According to the layered vacuum insulation board core material, continuous glass fiber with 6 to 13 mu m of diameter and 5 to 20mm of length is used and cannot be sucked into the deep parts of human lungs after being authenticated by world health organization, so that the layered vacuum insulation board core material is safe and harmless, meets the requirements of materials, can be used at ease for a long time and solves the problems of sanitation and safety of vacuum insulation board products.

Description

technical field [0001] The invention relates to a layered vacuum heat insulation board core material and a preparation method thereof, in particular to a vacuum heat insulation board core material prepared from continuous glass fibers. Background technique [0002] Vacuum insulation panel is a kind of super thermal insulation material. During its production and application, ODS substances are not used, and it is harmless to the environment. Its thickness can be reduced to one-third of that of traditional thermal insulation materials, but its thermal insulation performance is the same as that of traditional thermal insulation materials. 5 to 10 times the material. At present, vacuum insulation panels have been successfully used in refrigerators, freezers, refrigerated containers, building wall insulation, etc., and have broad development prospects. [0003] Through investigation and actual operation, it can be seen that the selection and preparation method of the core materi...

Claims

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Application Information

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IPC IPC(8): F16L59/02B32B17/02
Inventor 周介明陈照峰吴王平
Owner 周介明
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