A group of researchers has developed a method to transform silk from silkworms into a material with strength approaching that of Kevlar, yet fully biodegradable. Unlike traditional technologies, the new approach requires no complex chemical processing: fibers are aligned and pressed under specific temperature and pressure, preserving the silk's natural structure. This was reported by Ixbt.com reporting on the findings.
The result is a dense, transparent material with high tensile strength. Optimal pressing parameters include temperatures of 125–215 °C and pressures between 1900 and 9800 atmospheres. Under these conditions, fibers bond to form a wood-like structure with strong inter-fiber connections that distribute loads evenly.
The new material is transparent in the visible light range, allowing for use in optical technologies and sensors. Ballistic tests showed it rivals carbon fiber plastics (CFRP) used in aviation and automotive industries. Furthermore, the material is easily biodegradable, making it promising for sustainable technologies.
Scientists also tested the material for medical purposes: it dissolves slowly in the body, which is crucial for temporary medical implants. In the future, the team plans to scale the technology and create complex-shaped objects for industrial use. Researchers emphasize that natural materials can be not only eco-friendly but also high-tech.
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