China develops a process that turns wind turbine blades into graphene with a half-second discharge
Researchers at Tsinghua University developed a process that uses a half-second electrical discharge to convert wind turbine blades into graphene and silicon carbide. The blades are crushed into powder, mixed with carbon black and subjected to Joule heating up to about 2000 degrees. The recovered material, added at 0.3% by weight to epoxy resin, increased tensile stiffness by 27%. The results are from laboratory tests and the challenge is scaling them up.
In 40 seconds
- The method crushes the blades into powder, mixes it with carbon black and applies an electrical pulse that raises the temperature to about 2000 degrees in 0.5 seconds.
- Silica from the glass fiber becomes silicon carbide and the resin's carbon compounds generate graphene, without solvents or catalysts.
- The material added at 0.3% by weight to epoxy resin raised tensile stiffness by 27% and flexural stiffness by 9%.
Read the full story at MARCA
IASummary generated by artificial intelligence from a story by MARCA. It may contain errors: the original source prevails.
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