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18-03-2020 | Lightweight Design | News | Article

New System Coats Rovings Flexibly and at High Speed

Author:
Thomas Siebel
1 min reading time

A new system now allows high-module fibres to be coated with thermosets and thermoplastics in a short period of time. This means that tests can be carried out with different materials within a day.

Researchers at the Institute of Textile Technology (ITA) at the RWTH Aachen University have developed a new system for impregnating and coating high-module fibres such as those used in the winding or braiding processes during the production of automotive drive shafts or in the aerospace industry. The multi-material coating system can produce towpregs with circular cross-sections of up to five millimetres in diameter and tape-like geometries up to 20 millimetres in width at a production speed of about five metres per minute. It can therefore process thermosets and thermoplastics.  

According to the institute, it can process high-temperature thermoplastics due to its maximum processing temperature of 400 degrees Celsius. Set-up times of less than an hour enable different materials to be tested on a laboratory scale within one day. The researchers believe that the technology can be scaled up to an industrial scale.

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