Plastic produced by plant waste

The current plastics of biological origin are produced by short molecules called monomers that join together to gather longer molecules of polymers that are what form plastics. This material is biodegradable, but the way it is produced is not without criticism. Your production needs a lot of energy and often crops are used for this purpose that would otherwise be used for food production.

Ilker Bayer of the Italian Institute of Technology of Genoa, Italy is investigating the plastic production of vegetable origin. The cellulose of the cotton and hemp plant, after a series of acid and alkaline baths, changes from its natural crystalline form to another amorphous, suitable for molding, as if it were plastic without the need for any other process.

The research has been carried out on other residues of plant origin such as rice or cocoa husks, spinach or parsley wastes. With all of them you can produce plastic, but the More interesting is the rice husk.

The new materials have a different combination of stiffness and elasticity compared to other plastics of plant origin and traditional plastics. Plastics thus produced can inherit plant properties They have produced cellulose, for example, a parsley-based plastic could retain its antioxidant properties.

So far the studies have not passed the laboratory, but it is a good idea to give a use to waste from agribusiness activity.

Video: Pavement tile from plastic waste (April 2020).