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A polyamide resin composition that includes a polyamide resin at 85–40 weight percent, a copolyamide at 5–30 weight percent, and an impact-resistant material at 10–30 weight percent makes up a hydrogen tank liner material.
The impact-resistant material is preferably an acid-modified ethylene/-olefin-based copolymer, and the copolyamide is preferably PA6/66. It is possible to create a hydrogen tank lining material with great impact resistance even at low temperatures and outstanding gas barrier qualities.
Hydrogen tank liners are one of the most significant components of a hydrogen storage system because they assure the tank body’s impermeability to hydrogen, which, being an extremely light gas, can readily penetrate material.
The Global Hydrogen storage liner materials market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Hyosung transforms nylon for use as liner in hydrogen fuel tanks.The first of its type for a Korean firm, Hyosung TNC, a complete fibre maker, has stated that it has succeeded in manufacturing and employing nylon for the liner material — a vital component to prevent petrol leaking — of hydrogen car fuel tanks using its own technology.
In terms of light weight, gas barrier, and impact resistance, Hyosung TNC’s nylon material is considered to be superior to standard metal and high-density polyethylene (HDPE) liner materials.
The nylon liner material, in particular, is 70% lighter than metal and 50% lighter than HDPE. Its gas barrier capability is also 30% more than metal and 50% greater than HDPE, substantially reducing hydrogen gas leakage.
The nylon liner is said to have a low hydrogen absorption and air permeability, which eliminates possible brittleness. Conventional metal liners are hefty and have a significant risk of brittleness when exposed to hydrogen for a lengthy period of time. above 400 bar, HDPE liners are employed as high-pressure containers, but above 700 bar, conventional hydrogen electric cars cannot operate.
