Composite film production technology

A production process and composite film technology, applied in the direction of layered products, lamination devices, lamination, etc., can solve the problems of high cost, long delivery time, cumbersome operation, etc. The effect of convenient construction

Inactive Publication Date: 2017-11-17
广盟环保新材料(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually this kind of film has the following disadvantages, such as: high cost, long lead time, cumbersome operation

Method used

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  • Composite film production technology
  • Composite film production technology
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of production technology of composite film, comprises the following steps:

[0041] Gluing: Coating polyurethane adhesive on one side of the PET film, the coating amount is 4.4g / m 2 , smoothing, the main solid ratio of polyurethane adhesive is 16:1.5;

[0042] Drying: Send the PET film coated with polyurethane adhesive to the oven, and pass through the first zone with a temperature of 60°C, the second zone with a temperature of 65°C, the third zone with a temperature of 70°C, the fourth zone with a temperature of 80°C, and the fifth zone It is a cold wind zone, blown to 30°C in the cold wind zone and then compounded with aluminum foil to obtain a PET-aluminum foil film;

[0043] Curing: Curing the PET-aluminum foil film at 57°C for 8 hours;

[0044] Preheating: The cured PET-aluminum foil film is preheated to 150°C;

[0045] Bonding: The preheated PET-aluminum foil film is bonded to the polymer film to obtain a composite film.

[0046] The obtained composite ...

Embodiment 2

[0048] A kind of production technology of composite film, comprises the following steps:

[0049] Gluing: Coating polyurethane adhesive on one side of the PET film, the coating amount is 4.5g / m 2 , smoothing, the main solid ratio of polyurethane adhesive is 16:1.5;

[0050] Drying: Send the PET film coated with polyurethane adhesive to the oven, and pass through the first zone with a temperature of 60°C, the second zone with a temperature of 65°C, the third zone with a temperature of 70°C, the fourth zone with a temperature of 80°C, and the fifth zone It is a cold wind zone, blown in the cold wind zone to 35°C and then compounded with aluminum foil to obtain a PET-aluminum foil film;

[0051] Curing: Curing the PET-aluminum foil film at 55°C for 10 hours;

[0052] Preheating: The cured PET-aluminum foil film is preheated to 140°C;

[0053] Bonding: The preheated PET-aluminum foil film is bonded to the polymer film to obtain a composite film.

[0054] The obtained composite...

Embodiment 3

[0056] A kind of production technology of composite film, comprises the following steps:

[0057] Gluing: Coating polyurethane adhesive on one side of the PET film, the coating amount is 4.3g / m 2 , smoothing, the main solid ratio of polyurethane adhesive is 16:1.5;

[0058] Drying: Send the PET film coated with polyurethane adhesive to the oven, and pass through the first zone with a temperature of 60°C, the second zone with a temperature of 65°C, the third zone with a temperature of 70°C, the fourth zone with a temperature of 80°C, and the fifth zone It is a cold wind zone, blown to 25°C in the cold wind zone and compounded with aluminum foil to obtain a PET-aluminum foil film;

[0059] Curing: Curing the PET-aluminum foil film at 60°C for 6h;

[0060] Preheating: The cured PET-aluminum foil film is preheated to 160°C;

[0061] Bonding: The preheated PET-aluminum foil film is bonded to the polymer film to obtain a composite film.

[0062] The obtained composite film is cool...

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Abstract

The invention discloses a composite film production process, comprising: 1) coating a polyurethane adhesive on one side surface of a PET film, the coating amount is 4-5g/m2, and smoothing; 2) coating the polyurethane adhesive The PET film of the mixture is sent to an oven, and after heating in the oven from 60-80°C, it is compounded with aluminum foil under the action of cold wind to obtain a PET-aluminum foil film; 3) The PET-aluminum foil film is cured at 55-60°C6 ‑10h; 4) preheating the cured PET‑aluminum foil film to 140‑160 °C; and 5) bonding the preheated PET‑aluminum foil film to a polymer film to obtain a composite film. This production process abandons the traditional way of using two-component adhesives for gluing. It has short curing time, high peel strength, greatly shortens the process cycle, and makes the process more environmentally friendly. The obtained composite film has good heat resistance and aging resistance, and can be applied to the surface of heat insulation materials.

Description

technical field [0001] The invention relates to the field of heat insulation materials, in particular to a production process of a composite film. Background technique [0002] At present, composite films for heat insulation materials usually use two-component glue to compound several layers of films, such as 4050A and 4050B two-component glue. Usually this kind of film has the following disadvantages, such as: high cost, long delivery time, and cumbersome operation. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a composite membrane production process with short construction period and stable product performance. [0004] The purpose of the present invention adopts following technical scheme to realize: [0005] A kind of production technology of composite film, comprises the following steps: [0006] Gluing: Coating polyurethane adhesive on one side of the PET film, the coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B37/06
CPCB32B37/12B32B37/06B32B2307/306
Inventor 曾鹏辉周秉东詹瑞鑫
Owner 广盟环保新材料(广州)有限公司
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