Flax is known as a vegetable fiber with which to obtain fabrics to make garments. It is actually an excellent natural alternative to fiberglass. Flax fibers are green by nature and being a 100% renewable raw material, they are also perfectly recyclable, biodegradable and compostable. In addition, they are both exceptionally durable and very light at the same time.
Flax fibers have specific mechanical properties comparable to glass fibers. Composites made from flax fibers and thermoplastic, thermosetting and biodegradable matrices have shown excellent mechanical properties.
Carbon fiber is stiffer by weight than flax, but flax has much higher damping than glass or carbon fiber. A vibration in a structure made of carbon or glass fiber reinforced polymers takes much longer to dampen than in a structure made of flax reinforced polymers. So, add damping to a structure made of carbon-fiber reinforced material.
Flax fiber is characterized by high stiffness and vibration absorption and low density (1.4 p (g/cm³)) compared to glass fiber (2.54 p (g/cm³)) and other composite fibers. As thermal and acoustic insulation, it offers many ecological advantages and its impact on the environment is limited.
The carbon footprint, the carbon footprint of flax – the energy used and consequently the CO2 emitted to produce the raw material – is much lower than that of carbon and fiberglass. Moreover, it does not interfere with the food supply, but complements it, because flax is typically used as a mobile crop. If your field needs to rest for a year, plant flax. Finally, there is no need for water to extract the fibers to be used.