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Ultraviolet resistant near space airship

A near-space, UV-resistant technology, applied in the field of airships, can solve the problems of airship skin performance adverse effects, air bubbles, wrinkles, etc.

Active Publication Date: 2014-02-26
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-layers of the existing adjacent space airship skin usually use hot-melt coating technology or the way of coating rollers or the way of film bonding to achieve mutual bonding, but because the thickness of each layer of film is generally very thin , so the precision requirements for the above-mentioned processes are very high, but defects such as air bubbles or wrinkles still often inevitably appear, which also has an adverse effect on the performance of the manufactured near-space airship skin

Method used

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Embodiment Construction

[0010] According to the present invention, the airship skin in adjacent space comprises a weather-resistant layer, a primer layer, a load-bearing layer, an adhesive layer, a helium-blocking layer and a heat-sealing layer sequentially from the outside to the inside. The heat-sealing layer is polyurethane film, the helium barrier layer is aluminum-plated polyester (Al-PET) film, the adhesive layer is polycarbonate, the load-bearing layer is PBO plain fabric, and the primer layer is two-component epoxy polyamide. The weather-resistant layer is nano-fluorocarbon coating. Preferably, the thickness of the heat-sealing layer is 18 microns; the helium barrier layer is based on a PET film, and a thin and dense metal aluminum film is deposited on it by magnetron sputtering process, and the surface density of the substrate PET film is 60g / m 2 , the thickness of the aluminum coating is 70 nanometers, the thickness of the helium barrier layer is 34 microns, the thickness of the bonding l...

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Abstract

An ultraviolet resistant near space airship comprises an airship skin, the skin sequentially comprises a weatherproof layer, a primer layer, a load carrying layer, a cohesive layer, a helium barrier layer and a heat sealing layer, the heat sealing layer is a polyurethane film, the helium barrier layer selects an aluminized polyester (Al-PET) film, the cohesive layer is polycarbonate, the load carrying layer selects a PBO plain fabric, the primer layer is two-component epoxy polyamide, and the weatherproof layer is a nanometer fluorocarbon coating. The adoption of the nanometer fluorocarbon coating in the invention enhances the automatic cleaning effect, the ultraviolet resistance and the environmental protection capability of the weatherproof layer, and substantially enhances the weatherproof property of the airship skin. The invention also relates to a making method of the airship skin.

Description

technical field [0001] The invention relates to an airship, in particular to an ultraviolet-resistant near-space airship. Background technique [0002] The near-space airship is a new type of near-space multi-functional flying platform developed with the continuous development of science and technology. It is different from airplanes and low-altitude airships flying in the aviation layer, and also different from 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. etc. have great application value. However, the flying altitude of airships in near space is generally around 20km. The air in this area is thin, and the density is about 1 / 14 of the surface air density. Mainly UV-B, its spectrum ranges from 290 to 360nm, and the radiation intensity of ultraviolet rays, ozone and high-energy particles is much stronger th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/12B32B15/09B32B15/095B32B27/12B32B27/20
Inventor 张俊
Owner LIYANG TECH DEV CENT
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