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12 Cards in this Set
- Front
- Back
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Name 2 advantages of using a polymer
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Lightweight and versatile, easily printed on, inexpensive, recycleable. |
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Suggest a use for styrofoam
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Modelling, Insulation
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State 2 properties of Polyethylene Terephthalate (PET)
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Excellent barrier against atmosphereic Gases, Does not flavour the contents, Very tough
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State 2 properties of High Density Polyethlyene (HDPE)
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Resistant to chemicals, Barrier to water, Decorative when coloured
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State 2 properties of Polyvinyl Chloride (PVC)
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Weather resistant - doesn’t rot, Chemical resistant - doesn’t corrode, Can be manufactured either rigid or flexible
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State 2 properties of Low Density Polyethylene (LDPE)
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Very lightweight, Tough and hard wearing, very flexible |
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State 2 properties of Polypropylene (PP)
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Lightweight and versatile, Rigid, Good impact resistance Self Hinging (does not fracture when continuously folded) |
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Name 3 properties of Acrylic
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long term durability, chemically resistant, excellent aesthetic properties. |
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Define 'Thermoplastic' |
A Plastic that can be continuously reformed with the use of heat and pressure. |
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Define 'Thermoset' |
A Plastic that can not be be reformed once its shape is set. if heated continuously the material will char rather then become flexible or liquid |
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Define 'Elastomer' |
A Plastic material that behaves like a rubber in that they display elastic properties. |
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How can you reform a thermoset plastic |
Apply both heat and very high pressure that will break down the crosslinks and allow the plastic to become fluid |
