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Skin of stratospheric aerostat and preparation method thereof

An aerostat and stratosphere technology, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of insufficient weather resistance of the stratospheric aerostat skin, and achieve good radiation resistance, high resistance Shear strength, effect of improving weather resistance

Active Publication Date: 2015-07-01
INSTITUTE OF SCIENCE & TECHNOLOGY INNOVATION DONGGUAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a stratospheric aerostat skin and its preparation method to solve the problem of insufficient weather resistance of the stratospheric aerostat skin in the prior art

Method used

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  • Skin of stratospheric aerostat and preparation method thereof
  • Skin of stratospheric aerostat and preparation method thereof
  • Skin of stratospheric aerostat and preparation method thereof

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preparation example Construction

[0031] In addition, according to another aspect of the present invention, there is also provided a method for preparing the skin of a stratospheric aerostat, which includes the following steps: the weather-resistant layer, the first gas barrier layer, the bearing layer and the second gas barrier layer Stacked in sequence and hot pressed to form the skin of the stratospheric aerostat.

[0032] According to the above preparation method provided by the present invention, the weather-resistant layer in the skin of the prepared stratospheric aerostat is an ETFE layer. Ethylene-tetrafluoroethylene copolymer (ETFE) has a wide temperature range, between minus 65°C and 150°C, and its embrittlement temperature is as low as minus 100°C, and has good radiation resistance and high Shear strength. Using the ETFE layer as the weather-resistant layer of the skin of the stratospheric aerostat can greatly improve the weather resistance of the skin of the stratospheric aerostat.

[0033] In a ...

Embodiment 1

[0039] Lay the ETFE layer, thermoplastic polyurethane film, aluminized PET layer, thermoplastic polyurethane film, PBO fabric layer, thermoplastic polyurethane film, Tedlar film layer (produced by DuPont) and thermoplastic polyurethane film from bottom to top, heat Press to form the stratospheric aerostat skin. Wherein, the hot pressing temperature is 80° C., and the pressure is 1 mpa.

[0040] In the formed skin of the stratospheric aerostat, the thickness of the ETFE layer is 8 μm, the thickness of the aluminized PET layer is 10 μm, the thickness of the PBO fabric layer is 80 μm, and the thickness of the Tedlar film layer is 10 μm.

Embodiment 2

[0042] Lay the ETFE layer, thermoplastic polyurethane film, aluminized PET layer, thermoplastic polyurethane film, PBO fabric layer, thermoplastic polyurethane film, Tedlar film layer (produced by DuPont) and thermoplastic polyurethane film from bottom to top, heat Press to form the stratospheric aerostat skin. Wherein, the hot pressing temperature is 80° C., and the pressure is 1 mpa.

[0043] In the formed skin of the stratospheric aerostat, the thickness of the ETFE layer is 30 μm, the thickness of the aluminized PET layer is 15 μm, the thickness of the PBO fabric layer is 200 μm, and the thickness of the Tedlar film layer is 10 μm.

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Abstract

The invention provides a skin of a stratospheric aerostat and a preparation method thereof. The skin comprises a weather resistance layer, a first air barrier, a force bearing layer and a second air barrier, wherein the weather resistance layer is an ETFE (ethylene-tetra-fluoro-ethylene) layer; the using temperature range of ETFE is wide; the brittle temperature of ETFE is as low as minus 100 DEG C between minus 65 DEG C and minus 150 DEG C; ETFE has good radiation resistance and higher shear strength. The skin of the stratospheric aerostat uses the ETFE layer as the weather resistant layer, so that the weather resistance of the skin of the stratospheric aerostat can be substantially improved.

Description

technical field [0001] The invention relates to the technical field of aerostat manufacturing, in particular to a stratospheric aerostat skin and a preparation method thereof. Background technique [0002] The stratospheric aerostat is a new type of near-space multifunctional flying platform developed with the continuous development of science and technology. It is different from aircraft flying in the aviation layer, low-altitude aerostats, and satellites working in low orbits. It has a very wide range of military and civilian values, such as in missile defense, anti-terrorism, communications, remote sensing, space observation and Atmospheric measurement and other aspects have great application value. [0003] As the main structure of the aerostat, the performance of the skin directly affects the application performance of the aerostat. The flight altitude of stratospheric aerostats is generally around 18-24km. The air in this area is thin, the density is about 1 / 14 of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/09B32B15/20B32B27/12B32B27/30B32B27/40B32B9/04B32B7/12B32B37/12B32B37/15
Inventor 不公告发明人
Owner INSTITUTE OF SCIENCE & TECHNOLOGY INNOVATION DONGGUAN UNIVERSITY OF TECHNOLOGY
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