High-altitude airship

Abstract

The invention relates to a high-altitude airship which comprises an airship envelope, wherein the envelope sequentially comprises a weather-resistant layer, a primer layer, a load-bearing layer, a bonding layer, a helium-barrier layer and a heat-sealing layer from outside to inside, wherein the heat-sealing layer is a polyurethane; the helium-barrier layer adopts an aluminized polyester (Al-PET) film; the bonding layer is polycarbonate; the load-bearing layer adopts a PBO plain cloth; the primer layer is double-component epoxy polyamide; and the weather-resistant layer is a nano fluorocarbon paint. The nano fluorocarbon paint enhances the self-cleaning effect, ultraviolet resistance and environmental protection capacity of the weather-resistant layer, and greatly enhances the weather resistance of the airship envelope. The invention also relates to a manufacturing method of the airship envelope.

Description

technical field [0001] The invention relates to an airship, in particular to a high-altitude (stratospheric) airship. Background technique [0002] The high-altitude airship is a new type of near-space multifunctional 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 high-altitude airships is generally around 20km. The air in this area is thin, the density is about 1 / 14 of the surface air density, the atmospheric pressure is about 5.5kPa, the average wind speed is 10m / s, and the maximum wind speed can reach 40m / s. It is UV-B, its spectrum ranges from 29...

AI Technical Summary

Problems solved by technology

The multi-layers of existing high-altitude airship skins are usually combined with each other by hot-melt coating technology or coating rollers or by film bonding. However, since the thickness of each layer of film is generally very thin, Therefore, the precision requirements for the above-mentioned processes are very high, but defects such as bubbles or wrinkles still often inevitably appear, which also adversely affects the performance of the manufactured high-altitude airship skin