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20561003
PLASTICS = polymers
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Mind Map on PLASTICS = polymers, created by marco lorenzo on 14/01/2020.
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marco lorenzo
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marco lorenzo
over 4 years ago
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Resource summary
PLASTICS = polymers
Materials that can acquire and maintain a certain shape after being in a mould or deformed
Molecule created by the join and repetition of structural units called monomers ->polymerisation
TYPES OF PLASTICS
According to their internal structure
Elastomers
Elastic thermosetting polymers
Thermosetting polymers
3-D chins of polymers
Can be moulded applying heat and pressure
Difficult to recycle
Thermoplastics
Easy to break by applying heat and come back together when they are cooled -> easy to recycled
Lineal chain of polymers
PLASTIC SHAPING TECHNIQUES
Calendaring
To made sheets
Blow moulding
To make plastic bottles
Compression
Spin or rotacional moulding
Extrusion
To produce sheets, tubes and profiles
Vacuum forming
Injection
Extrusion into a mold
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