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PLASTICS, image, image, image, image, image, image, image, image, image,…

- - - - We close the mould and blow pressurised air into it, so that the plastic adheres to the sides of the mould and takes its shape.
      - When the object is cold, we remove it from the mould.
      - We put a tubular-shaped piece of plastic into a hollow mould which has the same shape as the oblect that we want to make.
      - Used to form: hollow oblects.
    - - The outer part of the cavity
        mould, shaped the same, is closed to compress the matenal
        inside We then heat it and it becomes soft and mafleabie
      - The plastic adapts to the shape of the cavity between the two parts of the mould.
      - We put thermostable plastic which can be in granular form,
        into the base of a cavity mould.
      - We extract the oblect when the plastic has cooled and solidified.
      - Used to form: different types of containers.
    - - We tniect melted thermoplastic into a mould.
      - When the material has cooled and solidified, we extract tt from the mould.
      - Used to form: domesttc utensils .
- - - - Agglutination: material is compacted and incorporated into other materials
      - Extrusion: melt material and then it's extruded into long filaments
      - Floating: wash the plastics and dry them by centrifugal force
      - Pelletising: filaments are reduced to granules that we called pellets
      - Separation and crushing: we separed the plastics acording to their type and then they're crushed
    - - Plastics that decompose on contact with bacteria and biological agents
      - Plastics that dissolve in cold or hot water