polymers and plastics field
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Transcript of polymers and plastics field
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Chemical industries program
( Polymers and plastics field)
Present
By :Mohammed Shaaban Fouad
Founder and CEO of chemical Engineering academy
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Session 4: 1 -Polymers and plastics.
2 -Synthetic and natural polymers. 3 -Classification of polymers. 4 -Synthesis of raw materials.
5 -Processing of plastics. 6 -Recycle of plastics .
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Engineering materials
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Polymers and plastics Any polymer can be molded
Every plastic is polymer but not every polymer is plastic…
Mechanical need with light weight
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Natural polymers
Synthetic polymers for demand …
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Classification of polymers
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Homo polymer (produced by addition )Hetero polymer (produced by condensation )
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Molecular arrangement Morphology
VS.Any transparent is amorphous, but not any opaque is crystalline
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Synthetic polymers and applications 1 -polyurethane
(thermoset)
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2-polyester(thermoset)
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3 -Phenol formaldehyde(thermoset)
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4 -PE (thermoplastic)
There is LDPE and HDPE
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5 -PP (thermoplastic)
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6 -PVC (thermoplastic)
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7 -Teflon
Note the four structures of PE, PP , PVC , PTFE
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8 -PETE
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Raw material synthesis Let’s learn the theory of manufacture…
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Plastic processing
Examples of additives on master batch:
filler Softeners Reinforcing agents Flame retardants
Blowing agents Colorants UV degradants
Raw is pellets or powder
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1 -Extrusion For thermoplastics with
continuous cross section area
Let’s learn about this…
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2 -compression molding
Let’s learn about it …
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Molds and products:
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3 -Injection molding
4 -Blowing injection
Let’s learn about it …
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5 -film manufacture
6 -3d printing Let’s learn about plastic
bags manufacture…
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How to choose processing method?
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Recycling process
Let’s learn about it…
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Thanks for listening…
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