Injection Molded Plastic
Injection Molding Injection Molding is the mostwidely used technique forfabricating thermoplasticmaterials because it can...
Thermoplastics used inInjection Molding Polyethylene Polypropylene Polystyrene Poly(vinyl chloride)
PolyethylenePolyethylene is used for everything– Grocery bags– BottlesIt’s structure is [-CH2-CH2-]Not good for high heat ...
Polypropylene Polypropylene is not as versatile Can be used as a plastic or fiber It’s used mostly for applications lik...
Polystyrene Polystyrene is a vinyl polymer It has a phenyl group every other carbon atom In plastic form it’s used for ...
Poly(vinyl chloride) Pvc is used for plumbing in homes Can withstand fire and water The chlorine atoms will inhibit com...
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Injection molded-plastic

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Injection molded-plastic

  1. 1. Injection Molded Plastic
  2. 2. Injection Molding Injection Molding is the mostwidely used technique forfabricating thermoplasticmaterials because it canmass produce parts forrelatively low costs. Melted plastic is pressurizedand forced into aprefabricated mold. There, itis allowed to cool and willtake the shape of the mold asit solidifies.
  3. 3. Thermoplastics used inInjection Molding Polyethylene Polypropylene Polystyrene Poly(vinyl chloride)
  4. 4. PolyethylenePolyethylene is used for everything– Grocery bags– BottlesIt’s structure is [-CH2-CH2-]Not good for high heat applications
  5. 5. Polypropylene Polypropylene is not as versatile Can be used as a plastic or fiber It’s used mostly for applications like outdoorcarpet Also used for dishes
  6. 6. Polystyrene Polystyrene is a vinyl polymer It has a phenyl group every other carbon atom In plastic form it’s used for computer shells In foam form it’s commonly used for packingboxes
  7. 7. Poly(vinyl chloride) Pvc is used for plumbing in homes Can withstand fire and water The chlorine atoms will inhibit combustion

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