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Composite core material vacuum insulation panel and preparation method thereof

A technology of vacuum insulation panels and composite cores, which is used in heat exchange equipment, mechanical equipment, and pipelines through thermal insulation protection to achieve the effects of creating economic and social benefits, low prices, and improving material utilization.

Active Publication Date: 2010-04-07
FUJIAN SUPERTECH ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the existing hard phenolic foam plastics industry and rigid polyurethane foam plastics industry etc. to have a large amount of rigid foam plastic corner waste problem, provides a kind of utilization A large amount of rigid foam wastes exist in the polyurethane foam industry, etc., which can significantly improve the comprehensive utilization rate of rigid foam, improve the environment, and promote material recycling. Composite core vacuum insulation panels and preparation methods thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: The vacuum insulation panel of the present invention consists of three parts: a composite core material, a getter, and a closed high-barrier packaging bag. The preparation process is as follows:

[0045] 1) Crushing and screening the collected waste of hard phenolic foamed plastics to obtain hard phenolic foamed plastics powder, the particle diameter of the hard phenolic foamed plastics powder is 1-2 μm.

[0046] 2) Mix the screened hard phenolic foam plastic powder with ultra-fine glass wool, beat the mixture, transfer the obtained mixture to a metering tank, discharge water to a standard water level, and measure the pH value of the mixture to be 1-6. The diameter of described superfine glass wool is 3.5~4.5 μ m; According to mass ratio, rigid phenolic foamed plastic powder: superfine glass wool is 15: 100, and described gained mixture is transferred to measure mixture after draining water to standard water level The pH value is 1~6;

[0047] 3) Arrangin...

Embodiment 2

[0057] Embodiment 2: similar to Example 1, the difference is that the particle diameter of the hard phenolic foam plastic powder is 2~2.5 μ m, and the inorganic fiber adopts centrifugal cotton, and the diameter of centrifugal cotton is 7~8 μ m; The ratio of phenolic foam plastic powder: centrifugal cotton is 20:100; the drying temperature after pressurized molding is 100°C, and the thickness of the formed composite core material is 10mm; Place it in a heat treatment furnace to heat it up to 120°C and keep it warm for 10 minutes, then open the heat treatment furnace and take out the sheet-shaped composite core material with slots from the vacuum chamber; the thickness of the packaging bag is 110 μm, and the aluminum-plastic composite material is selected from linear Low-density polyethylene film LLDPE, metallocene polyethylene film mPE and oxide-coated film GX3 are aluminum-plastic composite materials composed of three films and aluminum foil. Table 2 shows the key index of the...

Embodiment 3

[0060] Embodiment 3: similar to Example 1, its difference is that the particle diameter of described rigid phenolic foam plastic powder is 2.5~3 μm, and inorganic fiber adopts vermiculite fiber, and the diameter of vermiculite fiber is 1.2~2.5 μm; By mass ratio , the ratio of rigid phenolic foam plastic powder: vermiculite fiber is 1:100; the drying temperature after pressure molding is 130°C, and the thickness of the formed composite core material is 8mm; The composite core material is heated in a heat treatment furnace. When it rises to 140°C, it is kept for 7 minutes, and then the heat treatment furnace is opened to take out the sheet composite core material with slots from the vacuum chamber; the thickness of the packaging bag is 80 μm, aluminum-plastic composite material The aluminum-plastic composite material is composed of three kinds of films selected from aluminum foil Al, polypropylene cast film CPP and biaxially oriented polypropylene film BOPP and aluminum foil. Ta...

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Abstract

The invention discloses a composite core material vacuum insulation panel and a preparation method thereof and relates to a vacuum insulation panel. The invention provides the composite core material vacuum insulation panel which utilizes a large number of scraps of rigid foam plastics in the existing rigid phenolic foam plastic industry, the rigid polyurethane foam plastic industry and the like and can significantly improve the comprehensive utilization rate of the rigid foam plastics, improve the environment and promote the recycling of materials, and the preparation method thereof. The composite core material vacuum insulation panel comprises a composite core material, a getter and a closed packaging bag. The composite core material vacuum insulation panel can be prepared by adopting the wet method or the dry method.

Description

technical field [0001] The invention relates to a vacuum insulation panel (VIP panel), in particular to a method for preparing a composite core material vacuum insulation panel by using leftover waste materials. Background technique [0002] Vacuum insulation panel (VIP panel) is a new type of high-tech insulation material integrating high efficiency and energy saving. Since the thermal conductivity of the VIP board is one-eighth of that of ordinary insulation materials with the same area and thickness under the same working conditions, its thickness can be reduced to half or even less than that of ordinary refrigerator insulation materials when used in the insulation layer of refrigerators. The effective utilization space of the refrigerator is increased, and the heat preservation effect can be greatly improved, thereby saving more than 30% of electric energy. At present, the design and production of VIP boards has become mature, and most refrigerator freezer manufacturers...

Claims

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Application Information

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IPC IPC(8): F16L59/06
Inventor 汪坤明胡永年洪国莹
Owner FUJIAN SUPERTECH ADVANCED MATERIAL
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