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Plastics-revision
Question | Answer |
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2 groups of Plastics are : | Thermoplastics and Thermosetting Plastics (Thermosets) |
Name one difference between thermoplastics and thermosets? | Thermoplastics can be reheat and reshape many times but thermosets can only be heated once. |
List 2 types of plastics from thermoplastics. | Acrylic (PMMA), Polyethylene (PE), Polyvinyl chloride (PVC), Polystyrene (PS), Nylon, Polypropylene (PP), etc |
List 2 types of plastics from thermosets. | Urea-formaldehyde, Polyester resin+glass fibre, Melamine, Phenolic, etc |
What is the plastics used for making these products : photograph frames, signboards, car tail light covers and bathroom fittings | Acrylic |
What is the plastics used for making these products : Lenses, Goggles, Light fittings, Furniture, Jewellery, Stereo set lids, Bath tubs | Acrylic |
What is the plastics used for making these products : umbrella covering, swimming float, electrical cables and insulation, water pipe, electrical trunking, water hose, road marker. | Polyvinyl Chloride (PVC) |
What is the plastics used for making these products : Gears, Fan Blades, nuts and bolts, zips, ropes. | Nylon |
What is the plastics used for making these products : CD casings, TV and HiFi casings | Polystyrene |
What is the plastics used for making these products : Packaging, disposable cups and spoons | Expanded Polystyrene |
What is the plastics used for making these products : Non-breakable tableware (cups, bowls, plates) | Melamine |