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PLASTICS - Coggle Diagram

- - - - They' re made up of weakly formed molecular chains.
        
        When we heat them they become soft
  - - - They're formed by strongly-linked chains running in different directions
        
        When we heat them they become soft and can be shaped
  - - - They're hard, resistant, and very elastic
        
        They're formed by chains linjked laterally and then folded over themselves
- - - - With this technique we can produce different finishes like glossy, matt or textured
  - - - Blow moulding
        
        Compression
        
        Put thermostable plastic into the base of a cavity mould. The outer part is closed to compress the material inside
        
        We gheat it and the plastic adapts to the shape of the mould
        
        Put a tubular-shaped piee of plastic into a hollow mould with the same shape as the object we want to make
        
        Close the mould and blow pressured air into it
      - Inject melted thermoplastic into a mould and when it cooled extract it from the mould
  - - - Apply pressure by means of a large rotating screw
        
        Cool the shaped material slowly until is solid
        
        Collect the pieces through a feeder system
  - - - We put thermoplastic into a mould
        
        Then use a heater to soften the plastic
        
        Extract the air below the sheet so that the plastic is put against the mould and the desired form is created
        
        Leave the mould to cool
- - - - Strength
        
        Elasticity
        
        Rigidity
        
        Flexibility
      - Other
        
        Mechanical
        
        Acoustic
        
        Electrical
        
        Thermal
  - - - Chemical
        
        Apply chemical processes to make new materials
      - Mechanical
        
        Make new productes from plastic granules
        
        Separation and crushing
        
        Floating
        
        Agglutination
        
        Extrusion
        
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      - Energetic
        
        incinerate plastics and the energy produced is used in industry, for heating or producing electricity