Composites One
Published

Hyosung transforms nylon for use as liner in hydrogen fuel tanks

The company has succeeded in developing and using nylon as a core liner material in hydrogen storage vessels, overcoming metal and HDPE liner alternatives.  

Share

Nylon-lined hydrogen storage vessel. Photo Credit: Hyosung TNC

Hyosung TNC (Seoul, South Korea), a comprehensive fiber manufacturer, has announced that it has succeeded in developing and using nylon for the liner material — a core component to prevent gas leakage — of hydrogen vehicle fuel tanks with its own technology, the first of its kind for a Korean company.

Hyosung TNC’s nylon material is said to be superior to conventional metal and high-density polyethylene (HDPE) liner materials in terms of light weight, gas barrier and impact resistance. Specifically, the nylon liner material is 70% lighter than metal and 50% lighter than HDPE. Its gas barrier property is also reported to be 30% higher than metal and 50% higher than HDPE, effectively improving hydrogen gas leakage.

Conventional metal liners are heavy with a high risk of brittleness when exposed to hydrogen for a long period of time, whereas the nylon liner is said to have a low hydrogen absorption and air permeability, eliminating potential brittleness. HDPE liners, which are used as high-pressure containers at 400-bar levels, cannot withstand the 700-bar pressure required by typical hydrogen electric vehicles.

In addition, the hydrogen container liner must be able to withstand rapidly changing temperature fluctuation caused by frequent charging and discharging of hydrogen. Hyosung says this is solved through the nylon liner’s optimized impact resistance from -40ºC to 85ºC.

The development has laid the foundation for Hyosung TNC to enter the nylon liner market. According to H2 Research, the import substitution effect of the nylon material liner market is expected to grow to about 270 billion won (approximately $180 billion) annually in 2030. In addition, with the expansion of various hydrogen mobility markets such as hydrogen electric vehicles, drones, trams, ships and urban air mobility (UAM), nylon is expected to gain more attention as a liner material for hydrogen containers.

In addition, as Hyosung TNC works to develop what is says will be the first recycled nylon fiber technology from recycled fishing nets discarded in the sea.

Ultimately, the novel nylon liner is expected to contribute to the completion of Hyosung’s hydrogen value chain, which currently includes hydrogen charging stations in Korea, construction of liquefied hydrogen plants and liquefied hydrogen filling stations.

“Hyosung TNC’s development of nylon liner material demonstrates, even in the textile industry, which has been regarded as a declining industry, [that] the innovation that transforms it into a key material for the high-tech hydrogen industry can happen if it’s supported by technology,” chairman Cho Hyun-Joon says. “We will contribute to the development of the future eco-friendly energy industry with the technology of materials and textiles.”

Hyosung TNC’s nylon-applied hydrogen container passed the hydrogen container international quality standard (UN/ECE R134) in June 2022. The company also plans to conduct commercial tests in cooperation with hydrogen fuel tank manufacturers and automakers. It expects to expand the application of nylon as a liner material from tube trailers of commercial trucks to CNG and hydrogen vessels sailing the seas globally, such as Antarctica and the Equator, by enhancing the impact and heat resistance range from -60ºC to 90ºC.

In addition, as Hyosung TNC works to develop what is says will be the first recycled nylon fiber technology from recycled fishing nets discarded in the sea, it plans to expand the eco-friendly plastic material market by applying recycled nylon to a liner material in the future.

Vacuum and Controlled Atmosphere furnaces
Park Aerospace Corp.
Fire Retardant Epoxies
Wickert Hydraulic Presses
Nanoparticles filled epoxy adhesives
Composites One
Ad showing Janicki CNC Mill machining part in tool
Large Scale Additive Manufacturing
CIJECT machines and monitoring systems
Alpha’s Premier ESR®
Release agents and process chemical specialties
HEATCON Composite Systems

Related Content

Wind/Energy

JEC World 2023 highlights: Recyclable resins, renewable energy solutions, award-winning automotive

CW technical editor Hannah Mason recaps some of the technology on display at JEC World, including natural, bio-based or recyclable materials solutions, innovative automotive and renewable energy components and more.

Read More
Wind/Energy

Composites end markets: Energy (2024)

Composites are used widely in oil/gas, wind and other renewable energy applications. Despite market challenges, growth potential and innovation for composites continue.

Read More
Trends

MingYang reveals 18-MW offshore wind turbine model with 140-meter-long blades

The Chinese wind turbine manufacturer surpasses its 16-MW platform, optimizes wind farm construction costs for 1-GW wind farms.  

Read More
Work In Progress

Drag-based wind turbine design for higher energy capture

Claiming significantly higher power generation capacity than traditional blades, Xenecore aims to scale up its current monocoque, fan-shaped wind blades, made via compression molded carbon fiber/epoxy with I-beam ribs and microsphere structural foam.

Read More

Read Next

Carbon Fibers

Hyosung to add fourth carbon fiber line in South Korea

The $38.5 million expansion will bring the company’s total carbon fiber capacity to 9,000 metric tonnes per year. 

Read More
Sustainability

Avient launches reclaimed nylon-based long fiber composites 

The post-consumer recycled nylon 6 material is reclaimed from end-of-life fishing nets, reducing ocean-bound plastic waste while fostering material deployment for demanding environments.

Read More
Automotive

“Structured air” TPS safeguards composite structures

Powered by an 85% air/15% pure polyimide aerogel, Blueshift’s novel material system protects structures during transient thermal events from -200°C to beyond 2400°C for rockets, battery boxes and more.

Read More
Composites One