A stratospheric airship

Abstract

A stratospheric airship comprises an airship skin. The skin comprises a weather-proof layer, a primer layer, a force-bearing layer, an adhesive layer, a helium resistant layer and a heat sealing layer sequentially from outside to inside. The heat sealing layer is a polyurethane film, the helium resistant 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 two-component epoxy polyamide, and the weather-proof layer is a nano-fluorocarbon coating. According to the stratospheric airship, the nano-fluorocarbon coating is adopted, capabilities of self-cleaning, ultraviolet proofing and environment protecting of the weather-proof layer are enhanced, and the weather proofing capability of the airship skin is improved greatly. The invention further relates to a production method of the airship skin.

Description

technical field [0001] The invention relates to an airship, in particular to a stratospheric airship. Background technique [0002] Stratospheric 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 stratospheric 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. Mainly UV-B, its spectrum ranges from 290 to 360nm, and the...

AI Technical Summary

Problems solved by technology

The multi-layers of the existing stratospheric 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 often inevitably appear, which also have an adverse effect on the performance of the manufactured stratospheric airship skin