Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel using same

A technology of vacuum insulation material and core material, which is used in heat exchange equipment, household refrigeration devices, lighting and heating equipment, etc., can solve the problems of insulation material limitation, reduced durability, and reduced durability performance, and achieve excellent thermal insulation performance and long-term performance. Excellent durability, initial thermal insulation performance and long-term durability

Active Publication Date: 2013-05-15
ES GLOBAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the case of using glass fiber wool as the core material of the vacuum insulation material, although excellent initial thermal insulation performance can be ensured, when used for a long time, the thermal conductivity increases due to the gas permeating through the outer skin material film, so there is a problem. The problem of reduced long-term durability
[0006] On the contrary, in the case of using a glass fiber board as a core material for a vacuum insulation material, even if it is used for a long time, when the gas permeates, the small pore diameter of the glass fiber board minimizes the heat transfer of the gas, resulting in long-term durability. Excellent advantages, but there is a disadvantage that the initial thermal conductivity is below 0.0035Kcal / mhr℃, which is higher than that of glass fiber cotton
[0007] As a result, in the case of using glass fiber wool as the core material in the existing vacuum insulation materials, the long-term durability performance is reduced and the service life is short. When it is still used in the field of household appliances, there are reliability problems
[0008] In addition, in the case of using a glass fiber board as a core material, there is a problem that application to heat insulating materials is limited due to the decrease in initial heat insulating performance.

Method used

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  • Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel using same
  • Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel using same
  • Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel using same

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preparation example Construction

[0043] The preparation of glass fiber board can be prepared by wet preparation method, which is to disperse glass fiber into inorganic binder (one or more of soluble sodium silicate, alumina sol, silica sol, alumina phosphate) The method of making the board. In particular, soluble sodium silicate comprises water, silica powder and sodium hydroxide.

[0044] The following glass fiber board 110 can be proposed, which is composed of 55% to 70% of silicon oxide, 0.5% to 5.0% of aluminum oxide, 2.5% to 4.0% of magnesium oxide, 4.5% to 12% of calcium oxide and 0.1% to 0.5% Formation of potassium oxide, etc. Additionally, fiberglass panels are available in a variety of configurations.

[0045] The fiberglass board 110 includes a material that ensures excellent long-term durability, and may be in the form of a fiberglass board, sheet, or paper product. In addition, as a material for improving long-term durability, one or more of fumed silica powder, silica powder, perlite powder, and...

Embodiment 1

[0072] First, the above figure 1 The core material formed by laminating a single layer of glass fiber wool and glass fiber board by the lamination method is prepared into a size of 8 mm × 190 mm × 250 mm (thickness × width × length) and then used for vacuum insulation Material core material.

[0073] Next, form the outer skin material, which is composed of 12 μm polyvinylidene chloride (PVDC) / polyethylene terephthalate (PET) film, 25 μm nylon (Nylon) film, 7 μm aluminum foil and 50 μm linear Structure formation of low density polyethylene (LLDPE) films.

[0074] Second, if Figure 9 As shown, 2 getter materials made by bagging 25 g of quicklime (CaO) with a purity of 95% were inserted into the surface of the core material.

[0075] Then, after inserting the core material into the bag body, it was sealed in a vacuum state of 10 Pa, and the vacuum heat insulating material of the present invention was produced.

Embodiment 2

[0077] The vacuum insulation material was prepared under the same conditions as in the above-mentioned Example 1, but the core material was formed by laminating a layer of glass fiber board on top of two layers of glass fiber wool by lamination, and the core material was made of Into the size of 8mm×190mm×250mm (thickness×width×length).

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Abstract

The present invention relates to a composite core material for a vacuum insulation panel with excellent initial insulation properties and long-term durability, a preparation method thereof, and a vacuum insulation panel using the same. According to the present invention, the vacuum insulation panel comprises: a core material made of composite comprising glass fiber wool and glass fiber board; and outer skin material for vacuum packing the core material, having a layered structure comprising a surface protective layer, a metal barrier layer and an adhesive layer from the outside.

Description

technical field [0001] The present invention relates to a vacuum heat insulating material, and more specifically, to a vacuum heat insulating material that ensures excellent initial heat insulating performance and long-term durability by forming a core material of two or more composite materials of glass fiber wool (wool) and glass fiber board Material. Background technique [0002] Vacuum insulation materials (Vacuum Insulation Panel) are generally produced as follows: a bag formed of a composite plastic laminated film with excellent gas barrier properties is accommodated as a core material such as an open-cell rigid plastic foam or an inorganic substance, and the inside is sealed. After the decompression, the laminated portion between the gas barrier films at the peripheral edges was heat-sealed. [0003] In this case, the core material used for the vacuum insulation material is an inorganic compound that has low thermal conductivity and generates a small amount of gas. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/00B32B15/08B32B38/00F16L59/06
CPCB32B27/304B32B37/06B32B2309/02B32B27/12B32B2307/304E04B1/803B32B15/08B32B2315/08B32B37/1054B32B2305/20Y02B80/12B32B15/14B32B2262/101B32B5/26B32B17/02B32B37/14B32B15/20D04H18/00B32B27/36B32B17/067B32B2250/02F16L59/065B32B27/08B32B37/1027B32B2607/00B32B7/08F25D2201/14D04H1/4218B32B15/04B32B27/18B32B3/08B32B2250/40B32B2260/021B32B2264/10B32B2264/102B32B2264/104B32B2307/30B32B2307/732Y02A30/242Y10T156/10Y10T428/231Y10T442/60Y10T442/623Y10T442/699Y02B80/10
Inventor 韩程弼黄承锡
Owner ES GLOBAL CO LTD
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