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 high material cost, non-environmental protection, high energy consumption, etc., achieve low price and reduce raw material cost , the effect of low thermal conductivity
Active Publication Date: 2015-02-04
ANHUI KERUIKE INSULATION MATERIAL
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[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
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[0026] The invention relates to a method for producing a vacuum insulation board using expanded perlite. The core material is put into a high gas barrier film bag, and the bag is sealed after being vacuumed. It is characterized in that the composition and weight parts of the core material are: expanded pearl Rock 60-90, fiber 10-20, vacuum active stabilizer 3-6. The vacuum active stabilizer is composed of activated carbon, barium-lithium alloy activator, calcium oxide, magnesium oxide, and a mixture of one or more of them (in any ratio). The fiber includes one of rock wool, glass fiber, lignin fiber and glass ceramic fiber, or two or more of the foregoing fibers mixed in any ratio. The length of the fiber is 3-12mm, and the diameter is 0.2-13 microns.
[0027] The production process includes the following steps:
[0028] (1) Ingredients: put the materials into the mixer for full mixing;
[0029] (2) Drying: Dry the evenly stirred mixture; the drying temperature is 100-120℃, and th...
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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 materials 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 traditional insulated plate uses organic foam or rock wool, so that the traditional insulated plate is inflammable or the coefficient of thermal conductivity is high; the researched insulated plate using perlite as the main ingredient of core materials can achieve the lower coefficient of thermal conductivity; the perlite is an inorganic material and is not easy to burn.
Description
Technical field [0001] The invention relates to a method for producing a vacuum insulation board by using expanded perlite, which is used to produce a vacuum insulation board, which is used as a building or industrial insulation material. Background technique [0002] Existing vacuum insulation panels are mainly composed of an internal thermal insulation core material and an outer high gas barrier film. The thermal insulation core material is generally made of conventional thermal insulation materials (such as foamed plastics), glass fibers or / and aerogels. Its disadvantages are high material cost, high energy consumption, and not environmentally friendly. Summary of the invention [0003] The invention aims to provide a method for producing a vacuum insulation board by using expanded perlite to solve the problems of high material cost, high energy consumption and environmental protection in the prior art. [0004] The technical scheme of the present invention is: a method for prod...
Claims
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IPC IPC(8): B32B37/10B32B38/16
Inventor 何奕侯钦鹏
Owner ANHUI KERUIKE INSULATION MATERIAL