A UV-resistant high-altitude airship

Abstract

An ultraviolet-resistant high-altitude airship comprises an airship skin. The skin comprises a weather-proof layer, a primer layer, a force bearing layer, an adhesive layer, a helium blocking layer and a thermal sealing layer sequentially from outside to inside, wherein the thermal sealing layer is a polyurethane film; the helium blocking layer is an aluminized polyester (Al-PET) film; the adhesive layer is made of polycarbonate; the force bearing layer is made of PBO plain weave fabric; the primer layer is made of double-component epoxy polyamide; the weather-proof layer is made of nanometer fluorocarbon coating. As the nanometer fluorocarbon coating is adopted, the ultraviolet-resistant high-altitude airship enhances self-cleaning effect, ultraviolet resistance and environment protection ability of the weather-proof layer and greatly enhances weather resistance of the airship skin. The invention also relates to a manufacturing method of the airship skin.

Description

technical field [0001] The invention relates to an airship, in particular to an ultraviolet-resistant 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 ...

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