Post Test - Plastics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Polymer | A large, many unit molecule made up of thousands of monomer, single unit molecules linked together like a chain.
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| Synthetic Plastics | Man-made by taking atoms and molecules from natural materials such as coal, natural gas, oil, plant fibers, air, water, and salt, and rearranging them.
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| Thermosetting Plastics | Plastics that are set in a permanent shape during molding. The material will not soften when re-heated.
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| Molding Compounds | Plastics delivered to manufacturing industries in the forms of powders, pellets, or granules. Used in injection, extrusion, and blow molding.
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| Lamination | Plastic forming process that involves joining two or more layers of plastic material to form a single composite sheet using pressure.
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| The properties of plastics can be altered or improved by _____. | changing chemical formulation, combining several plastics
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| Some of the first plastics used by humans: | clay, tree sap, glass
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| Require the greatest amount of plastics. | Construction, packaging, automotive, electronics, and appliances
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| Variables to consider when thermoforming plastic. | type, thickness, temperature
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| sprue hole | hot soft plastic is injeted into the mold through this hole
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| Developed in 1909, 1st synthetic plastic | Bakelite
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Created by:
SCullum
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