Method utilizing expanded perlite to produce vacuum insulated plate

A technology of expanded perlite and vacuum insulation panels, applied in chemical instruments and methods, layered products, lamination devices, etc., can solve the problems of environmental protection, high energy consumption, high material cost, etc., and achieve reduced raw material costs and low thermal conductivity Coefficient, cheap effect

Active Publication Date: 2012-10-10
QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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Problems solved by technology

[0003] The present invention aims to provide a method for producing vacuum insulation panels by using expanded perlite, so as to solve the problems of high material cost, high energy consumption and non-environmental protection existing in the prior art

Method used

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  • Method utilizing expanded perlite to produce vacuum insulated plate
  • Method utilizing expanded perlite to produce vacuum insulated plate
  • Method utilizing expanded perlite to produce vacuum insulated plate

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Embodiment Construction

[0028] The invention discloses a method for producing a vacuum insulation panel by using expanded perlite. The core material is put into a high-barrier gas film bag and sealed after vacuuming. It is characterized in that the composition and parts by weight of the core material are: expanded pearl Rock 55-75, auxiliary material 8-20, fiber 5-10, vacuum active stabilizer 3-7.

[0029] The manufacturing process includes the following steps:

[0030] (1) Ingredients: Put various materials of the formula into the mixer for thorough mixing.

[0031] (2) Drying: Dry the evenly stirred mixture, and control the drying temperature at 100-120°C. During the drying process, measure the moisture content of the mixture every 8 minutes until the moisture content of the mixture reaches 0.5 % below, stop drying.

[0032] (3) Non-woven bag making: The non-woven fabric is made into a three-side-sealed bag, or a three-side-sealed bag with gussets.

[0033] (4) Filling of core material: Put the ...

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Abstract

The invention relates to a method utilizing expanded perlite to produce a vacuum insulated plate. The fabrication process of the method comprises the following steps of: burdening: putting the expanded perlite, an auxiliary material, fiber and a vacuum active stabilizing agent into a mixing machine to be fully mixed; drying: drying the uniformly stirred mixture; core material forming: putting the dried materials and a getter into a mould, and putting the mould into a pressing machine for pressure forming; package: taking out a pressure-formed core plate from the mould, packing a layer of non-woven fabric at the periphery of the core plate so as to obtain the core plate of the vacuum insulated plate for buildings; putting the core plate into a high-resistance gas membrane bag, vacuumizing with the vacuum degree of 0.02-20Pa, and then sealing. The method has the advantages that the sound absorption of the expanded perlite is good, and the own coefficient of thermal conductivity of the expanded perlite is low; the mixing of the auxiliary material, the fiber and the perlite can form a high-performance thermal-protective layer among perlite particles, and further the thermal insulation properties and the strength are increased; and the expanded perlite is an inorganic materials and is not easy to burn.

Description

technical field [0001] The invention relates to a method for producing a vacuum heat insulation board by using expanded perlite, which is used for producing a vacuum heat insulation board, and the vacuum heat insulation board is used as a building or industrial heat preservation material. Background technique [0002] Existing vacuum insulation panels are mainly composed of internal heat-insulating core material and outer high-barrier film, in which the heat-insulation core material is generally made of conventional thermal insulation materials (such as foamed plastics), glass fiber or / and airgel, etc. Its disadvantages are high material cost, high energy consumption and not environmental protection. Contents of the invention [0003] The present invention aims to provide a method for producing vacuum insulation panels by using expanded perlite, so as to solve the problems of high material cost, high energy consumption and environmental protection in the prior art. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10
Inventor 翟传伟李壮贤
Owner QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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