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Vacuum insulation plate core material and preparation method thereof and vacuum insulation plate

A vacuum insulation board and core material technology, which is applied in heat exchange equipment, mechanical equipment, and pipelines through heat insulation protection, can solve the problems of poor fireproof performance, high expansion coefficient, and high production cost of microporous polyurethane core materials, and achieve promotion The effect of waste recycling

Active Publication Date: 2018-01-16
BEIJING NEW BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the core materials of vacuum insulation panels are mainly divided into powder core materials, microporous polyurethane core materials and glass fiber core materials. The powder core materials are vacuum insulation panels made of nano-scale meteorological silica, and the cost is relatively high; while Vacuum insulation panels with glass fiber cores have limitations in application due to their high expansion coefficients; microporous polyurethane cores have poor fire performance
In addition, these three core materials all have high production costs during the production process

Method used

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Examples

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preparation example Construction

[0030] In the method for preparing the above-mentioned vacuum insulation panel core material of the present invention, the steps of forming, drying, cutting, and vacuum plastic sealing after drying may be operating steps known to those skilled in the art, and the present invention will not repeat them here. A repeat.

[0031] The present invention also provides a vacuum insulation panel, which includes the core material of the vacuum insulation panel as described above.

[0032] The core material of the vacuum insulation panel provided by the present invention uses low-cost mineral wool board as raw material, and by controlling the density of the mineral wool board, the thermal conductivity of the core material of the vacuum insulation panel can be effectively controlled, thereby obtaining the core material of the vacuum insulation panel In addition to thermal insulation performance, the production cost of the core material of the vacuum heat insulation panel is obviously redu...

Embodiment 1

[0038] 2300kg of granular cotton (the acidity coefficient is 1.5; the weight ratio of steelmaking slag and fly ash is 1:0.05), 150kg of starch and 5kg of anionic polyacrylamide are pulped, formed, dried and cut into vacuum insulation panels Core. The density of the obtained vacuum insulation panel core material is 300Kg / m 3 , the thickness is 9mm. The thermal conductivity was tested by a thermal conductivity tester to be 0.024W / m·K.

Embodiment 2

[0040] 2300kg granular cotton (the acidity coefficient is 1.8; the weight ratio of steelmaking slag and fly ash is 1:0.1), 50kg starch and 4kg anionic polyacrylamide are pulped, shaped, dried, cut and dried, then vacuum plastic sealed to produce into a vacuum insulation panel core material. The density of the obtained vacuum insulation panel core material is 250Kg / m 3 , the thickness is 18mm. The thermal conductivity was tested by a thermal conductivity tester to be 0.010W / m·K.

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Abstract

The invention provides a vacuum insulation plate core material. The vacuum insulation plate core material comprises a mineral wool plate, and the density of the mineral wool plate is 250-300 Kg / m<3>.The invention further provides a preparation method of the vacuum insulation plate core material and a vacuum insulation plate which comprises the vacuum insulation plate core material. According to the vacuum insulation plate core material, waste recycle is promoted, the production cost of the vacuum insulation plate core material is remarkably lowered, and the vacuum insulation plate core material has good fireproof performance and can be economically and effectively applied to the field of production of mobile board rooms.

Description

technical field [0001] The invention relates to a core material of a vacuum heat insulation board, a preparation method thereof and a vacuum heat insulation board. Background technique [0002] The English of the vacuum insulation panel is "Vacuum Insulation Panel", referred to as VIP board. It is a kind of insulation material. It is composed of a filling core material and a vacuum protection surface. The coefficient can be greatly reduced, less than 0.0025w / m.k, and it does not contain any OD materials (ozone-depleting substances). It has the characteristics of environmental protection, high efficiency and energy saving, and is currently the most advanced high-efficiency thermal insulation material in the world. [0003] The core material is an important part of the VIP panel, which plays a vital role in the thermal conductivity of the vacuum insulation panel. The core material after vacuuming has a certain strength and can play the role of skeleton support, while the fiber...

Claims

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Application Information

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IPC IPC(8): F16L59/065F16L59/02
Inventor 金春来曲辉方祥文
Owner BEIJING NEW BUILDING MATERIAL
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