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Composition of Plastics
Plastics Tech 1
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Composition of Plastics
Lesson Essential Question: What are plastics?
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Raw Materials in Plastic Resins
Coal Air Water Petroleum Natural Gas Limestone
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Production of Plastic Resins
Chemists are responsible for producing synthetic resins Plastic is a forced combination of molecules Monomer - a simple molecule of synthetic resin. Polymer – a combination of monomers to form a long chain molecule.
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Production of Plastic Resins
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Production of Plastic Resins
Polymerization - process of making plastic, linking of monomers to form polymers. Homopolymerization – combining of like monomers into polymers. Copolymerization – combining two or more different monomer units Autoclave - a piece of equipment that applies heat and pressure to combine monomers to form polymers.
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Production of Plastic Resins
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Production of Plastic Resins
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Types of Plastics Thermoplastic – plastic which can be reprocessed or reused. Thermosetting plastic– cannot be reused/reformed once heated. Definition of plastics – a synthetic substance made up of a long chain of complex molecules capable of being formed or molded into any desired shape.
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Types of Plastics
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Types of Plastics
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Types of Plastics
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Plastics
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Plastics Video Clips Polyethylene Bottles Plastic Bags
Recycling to Clothing
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