are made from compounds extracted from petroleum, natural gas and carbon. the majority of plastics belog to this group

the transformation of these raw materials and compounds into plastics is called polymerisation

strength, elasticity, rigidity, flexsibility, mechanical, acoustic, electrical,thermal, low density, impermeability

we apply chemical processes to make new materials from the original components of plastic residues

we can incinetrate plastics and the energy that is produced is used in industry, for heating or producting electricity

SEPARATION AND CRUSHING: We separate the plastics according to type and then they are crushed

FLOATING: we wash the plastics and then dry them by centrifugal force

AGGLUTINATION: the material is compacted and then incoporated into other materials

EXTRUSION: we melt the material, and then it's extruded into long filaments

PELLETISING: the filaments are then reduced to granules that we call pellets

we maunfacture thermoplastics from compounds acquired from petroleum
they're made up fo weakly formed molecular chains
when we heat them, they become soft, which allows them to be formed into different shapes

these plastics are made from compounds derived fron petroleum
they are formed by strongly-linked chains running in different directions
when heated, they become soft and can be shaped. when cooled, they cannot be remouled by applying heat

made by vulcanisation: mixing sulphur and rubber, and heating to 160
they are hard, resistant and very elastic-streching easily under force
they're formed by chains linked laterally and folded over themselves, like a ball of wool or string