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Composite thermosetting film for inflated spatial expanded structure and its making and rigidizing process

A technology of composite film and space inflation, which is applied in the direction of layered products, etc., and can solve problems such as being in the confidentiality stage

Inactive Publication Date: 2005-09-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, judging from the publicly published literature in China, there is no information directly related to this field.
Most of the foreign materials are conceptual descriptions, and the key technologies are still in the confidential stage.

Method used

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  • Composite thermosetting film for inflated spatial expanded structure and its making and rigidizing process

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Experimental program
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specific Embodiment approach 1

[0005] Specific implementation mode one: (see figure 1 ) The thermosetting composite film of this embodiment is composed of an internal gas barrier layer 1, a stiffening layer 2, a heating layer 3, and an external heat insulating layer 4; the stiffening layer 2 is arranged on the outside of the inner gas barrier layer 1, and the heating layer 3 is arranged on Outside the stiffening layer 2 , an external thermal insulation layer 4 is arranged outside the heating layer 3 . The thickness of the inner gas barrier layer 1 is 0.025mm-0.05mm; the thickness of the rigid layer 2 is 0.1-0.8mm; the thickness of the heating layer 3 is 0.1-0.3mm; the thickness of the outer heat insulation layer 4 is 0.5-1mm. The method of making and stiffening the thermosetting composite film in this embodiment is as follows: 1. The making of the internal gas barrier layer 1: make the polyimide film or the polyester film into a spherical, cylindrical or tubular shape (the shape after inflation and expansio...

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Abstract

The present invention relates to composite film and its making and rigidizing process. The composite thermoset film for inflated spatial expanded structure includes inner gas blocking layer, rigidized layer, heating layer, and outer heat insulating layer successively from inside to outside. Fiber fabric woven in two or three directions is soaked in thermoset resin to form the pre-soaked fabric; and metal foil or metal filament is set between two layers of polyimide film with thermoset adhesive painted in the inner layer and formed via heating and pressurizing in a hot press. Perforated polyimide film or polyester film with aluminum plated to the one or two sides is adhered to dacron net and formed into shape the same as the required inner gas blocking layer. The composite thermoset film of the present invention has the advantages of light weight, small occupied emitting volume, lowered emitting cost and high reliability.

Description

Technical field: [0001] The invention relates to a composite film and a method for making the film and thermosetting rigidity. Background technique: [0002] In the field of modern national defense, the competition of national defense forces has increasingly developed into the competition of space technology. Future wars will largely depend on the competition for air supremacy. In the future, space technology and competition for air supremacy will increasingly rely on large-scale (or ultra-large) space structure construction technologies, such as large-scale space antennas, solar panels, and large-scale space-based weapon system combat platforms, Aerospace vehicles, etc., have a large demand in the fields of aerospace and national defense in my country. The development of large-scale space structure technology is of great significance to improving my country's future competitiveness in international space technology and aerospace combat capabilities. At the same time, due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08
Inventor 刘宇艳谢志民谭慧丰杜星文
Owner HARBIN INST OF TECH
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