Composites are obtained by the association of at least two different types of materials in order to obtain the optimum properties of the final product.
Although polyester resin appeared at the beginning of the 20th century, it was not until the 1940’s that composites started to be talked about, combining polyester resin with glass fibre to not only constantly improve the mechanical resistance but also the behaviour of the finished product to natural ageing.
For several decades now, research laboratories and companies have begun to study the possibilities of replacing fiberglass with natural fibres like linen with the idea of reducing not only the weight of parts but also due to the awareness of industrialists and consumers, the environmental impact.
Today we are convinced that linen combined with resin has multiple advantages compared to resin associated with a conventional fiberglass. These advantages include low density, acceptable and sometimes similar mechanical properties, a reduction in the ecological footprint. It is a material that can be burned without residue. However, it must be kept in mind that flax fibre also has some drawbacks: its price, its hydrophilicity and still to this day, insufficient knowledge about the durability of the finished composite.
For all these reasons, we must continue to push science further and continue to promote the combination of a composite resin/natural fibre to further improve its performance and develop its use in diverse and varied fields such as automotive, transport, construction.
Our imagination is our only limit.