Please enable JavaScript.

Coggle requires JavaScript to display documents.

Plastics - Coggle Diagram

- - - - 1st step
        We put thermoplastic, in granular form, Into a previously heated cyhnder
        
        2nd step
        We apply pressure by means of a large, rotattng screw, whtch forces
        the melted matenal out, through a nuzzle
        
        3rd step
        We cool the shaped material slowly In a refngerated water bath until
        lt's solid
        
        4th
        Finally, we collect the pieces of plastic through a feeder system
  - - - We put thermoplasttc into a mould.
        
        We then use a heater to heat the mould and soften the plasuc.
        
        g. We extract the air below the sheet so that the plastic ts pulled against
        the instde walls of the shaped mould, and the desired form ts created
        
        We leave the mould to cool, then remove the obiect
  - - - Used to form: domesttc utensils such as buckets and contatners,
        vehicle and aircraft components.
        
        We tniect melted thermoplastic into a mould
        
        When the material has cooled and solidified, we extract tt from the
        mould
    - - Used to form: hollow oblects, for example bottles and flasks
        
        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
        
        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
    - - Used to form: different types of containers, machine bodywork and
        electrical appliances.
        
        We put thermostable plasuc, which can be in granular form, into the base of a cavity mould.
        
        The outer part of the cavity mould, shaped the same, isclosed 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 extract the oblect when the plastic has cooled and solidified
- - - - Separation and crushing.
      - Floating
      - Agglutination.
      - Extrusion
      - Pelletising
      - En ergetic recycling
        
        pl astics that decompose on contact with certain bactena and
        biological agents
        
        p lastics that dissolve tn hot or cold wate
- - - - Polyvinyl chloride
        
        Polystyrene
        
        Polythene
        
        Polypropylene
        
        Polymethyl methacrylate
        
        Teflon
        
        1 more item...
  - - - Polyurethane
      - Phenohc resins •
      - Melamine Formaldehyde
      - Polyester resins
  - - - Naturalrubber
      - Synthetic rubber
      - Neoprene
- - - - Mechanical fasteners
        
        Nut and bolt
        
        Used to fasten two objects together
        
        Standard screw
        
        Used to fasten two obiects
        
        Double ended scre
  - - - Adhesives
        
        Joining two surfaces permanently
        
        esins with two components
        
        acrylic cement
        
        contact adhesives
      - Soldering
        
        Joining thermoplasti«s using heat and pressure