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Making method of vapor barrier film for vacuum heat insulating shield

A technology for vacuum insulation panels and production methods, which is applied in the field of building materials production, can solve the problems that air barrier films cannot be used on building exterior walls, etc., achieve excellent sealing integrity, good economical efficiency, and improve the overall heat insulation performance

Inactive Publication Date: 2010-07-07
ANHUI KERUIKE INSULATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that the gas barrier film in the prior art cannot be used for the building exterior wall, and provides a method for manufacturing the gas barrier film for the vacuum insulation panel of the building exterior wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1, this example prepares a high-barrier film of about 150 μm: the uppermost layer is composed of PDVC material, which enhances mechanical properties, high temperature sealing and ironing, etc.; the second layer is an adhesive material, which is used to bond the PDVC material of the first layer And the PA material of the third layer, so that the two materials with poor compatibility are co-extruded and compounded; An auxiliary barrier layer that blocks oxygen and other gases; the fourth layer is composed of EVOH material, which functions to block oxygen and other gases; the sixth layer is an adhesive material, which is used to bond the fifth layer of PA material and the seventh layer of EVA material, so that the two materials with poor compatibility are co-extruded and compounded; the eighth layer is an adhesive material, which is used to bond the EVA of the seventh layer and the PE material of the ninth layer; the ninth layer is composed of It is made of PE mate...

Embodiment 2

[0043] Embodiment 2, this embodiment prepares a high barrier film of about 120 μm.

[0044]In the uppermost layer, the main raw material resin PS and additives are uniformly stirred in the mixing hopper at the front end of the extruder by the first extruder, and the resin is plasticized at 220°C to 300°C, and extruded into the uppermost layer of the mold. in the runner;

[0045] For the second layer, use the second extruder to plasticize the adhesive material resin at 160°C to 180°C, and extrude it into the runner of the second layer of the mold;

[0046] The third layer, the main raw material resin PVOH and additives are uniformly stirred in the mixing hopper at the front end of the extruder by the third extruder, and the resin is plasticized at 200°C to 270°C, and extruded into the third layer of the mold. In the flow channel of the layer;

[0047] For the fourth layer, use the fourth extruder to plasticize the adhesive material resin at 160°C to 180°C, and extrude it into...

Embodiment 3

[0054] Embodiment 3, this embodiment prepares a high barrier film of about 80 μm.

[0055] On the uppermost layer, the main raw material resin PET and additives are uniformly stirred in the mixing hopper at the front end of the extruder by the first extruder, and the resin is plasticized at 220°C to 280°C, and extruded into the uppermost layer of the mold. in the runner;

[0056] For the second layer, use the second extruder to plasticize the adhesive material resin at 160°C to 180°C, and extrude it into the runner of the second layer of the mold;

[0057] The third layer, the main raw material resin PS and additives are uniformly stirred in the mixing hopper at the front end of the extruder by the third extruder, and the resin is plasticized at 200°C to 300°C, and extruded into the third layer of the mold. In the flow channel of the layer;

[0058] For the fourth layer, use the fourth extruder to plasticize the adhesive material resin at 160°C to 180°C, and extrude it into ...

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PUM

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Abstract

The present invention relates to a making method of a vapor barrier film for a vacuum heat insulating shield, and a choke film of the vacuum heat insulating shield special for construction. The choke film not only satisfies the high choke performance needed by the vacuum heat insulating shield, but also has the advantages of puncture resistance, weather resistance, cracking resistance, easy hot sealing and good protective effect. The making method uses the following technical scheme: upper-layer material is fed to the topside flow way, and middle-layer material, lower-layer material, binder between the middle-layer material and the upper-layer material and binder between the middle-layer material and the lower-layer material are fed to each flow way of a module in turn; the upper-layer material is selected from PDVC, PS or PET, the middle-layer material is selected from PE, PVOH, PA, EVOH, EVA, PET or PP, and the lower-layer material is PE; a film bubble pipe is extruded through the module; the film bubble pipe is cooled; a clamping plate device in a shape of a character of 'ren' is leaded in to planish the film bubble pipe; and a single-layer flat film of 50 t 200 mum is made through a winder.

Description

technical field [0001] The invention relates to a method for manufacturing building materials, in particular to a method for manufacturing an air-insulating film for a vacuum heat insulation panel on an exterior wall of a building. Background technique [0002] Vacuum insulation panels are mainly used in home appliances, refrigeration or refrigeration equipment, and there is no precedent for applying vacuum insulation panels to building exterior wall insulation in China. The ultra-thin vacuum thermal insulation decorative panel developed by our company is developed from the excellent thermal insulation material used in refrigerator equipment. The thermal insulation effect of this material is 5 to 8 times that of the commonly used external thermal insulation materials in Europe. It has good environmental performance similar to glass wool and EPS. It is mainly composed of three parts: core insulation material, core sealing material and vacuum sealing material. Its thermal con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C55/28B29C47/56B29C47/06B29C47/92B29C48/92
Inventor 翟传伟李壮贤苏珍
Owner ANHUI KERUIKE INSULATION MATERIAL
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