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Core material used in vacuum insulation board, preparation method thereof, and purpose thereof

A technology for vacuum insulation panels and core materials, which is applied in heat exchange equipment, mechanical equipment, and pipelines through heat insulation protection, and can solve problems such as difficult displacement, complicated process, and easy breakage of core materials, and achieve easy displacement and preparation Simple method, unbreakable effect

Inactive Publication Date: 2013-05-01
FUJIAN SUPERTECH ADVANCED MATERIAL
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the shortcomings of the core material made by the sol-gel method and "sandwich structure" in the prior art that are easily broken, difficult to shift, and complicated in process, and to provide a core material for vacuum insulation panels.

Method used

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Embodiment Construction

[0027] The present invention will be described in detail below through specific embodiments.

[0028] A method for preparing a core material for a vacuum insulation panel, the specific steps are as follows:

[0029] Step 1, according to the size of the vacuum insulation panel 200mm×200mm, make a non-woven film bag with one side opening;

[0030] Step 2, according to the core material density is set to 300kg / m 3 1. Mix 120g of loose powder quantitatively with 3g of glass fiber material, fill the non-woven film bag through the opening reserved in step 1, and seal it under normal pressure;

[0031] Step 3, place the non-woven fabric film bag in step 2 flat on a molding machine mold with comparable specifications;

[0032] Step 4, flatten the powder in the non-woven film bag, so that the powder is relatively evenly distributed in the bag;

[0033] Step 5, set the pressure on the molding machine panel to 10000N, and the pressing speed to 24mm / s;

[0034] Step 6, unloading the p...

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Abstract

The invention relates to the field of vacuum insulation board, and especially relates to a core material used in a vacuum insulation board, a preparation method thereof, and a purpose thereof. The core material comprises a sealed film bag manufactured by using an air-permeable and powder-impermeable filtering material, and a powder material filled in the film bag. The powder material is a porous material with a particle size smaller than 20mum. The filtering material can at least resist high temperature of 120 DEG C. Compared with a core material obtained with a sandwiching structure and with a sol-gel method in prior art, the vacuum insulation board provided by the invention has the advantages of crushing resistance, easy moving, and simple preparation method. With the vacuum insulation board, the requirements of fields such as refrigerators on vacuum insulation boards can be satisfied, and requirements of the field of construction energy saving and insulation on service lives of 20 years or even 50 years can be satisfied. The vacuum insulation board can be widely applied in the field of construction energy saving and insulation.

Description

technical field [0001] The invention relates to the field of vacuum heat insulation panels, in particular to a core material for vacuum heat insulation panels, a preparation method and application thereof. Background technique [0002] At present, the world is facing an energy crisis, and energy conservation and emission reduction have become the focus of worldwide attention. The development of new energy, new technologies and new materials is imperative. As a new type of insulation material, vacuum insulation panel (Vacuum Insulation Panel, referred to as "VIP") has low thermal conductivity and thin thickness. Vacuum insulation panels have great potential for development. [0003] The composite core material made of powder particles mainly adopts the sol-gel method and the "sandwich structure" method. In the patent document of Chinese Patent No. 200710031196.0 "A Composite Core Material for Vacuum Insulation Panels and Its Preparation Method", a method for preparing a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/24B32B5/30F16L59/065
Inventor 陈桂花林晓斌陈孝行
Owner FUJIAN SUPERTECH ADVANCED MATERIAL
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