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Plastic, Disadvantage, Advantage, Properties It is very tough,…

- - - - Properties They are good fiber-forming materials and are converted into commercial fibers, They have good flexural strength and can withstand temperatures up to 1450C.
      - Used in safety helmets, air-craft battery boxes, motor car body components,.
    - - They are used for making good insulators, aircraft, and automobile parts, sheets, rods, tubes, switches,
    - - Use Such fibers have high scratch resistance, high crease, and wrinkle resistance.
      - Properties They are good fiber-forming materials and are converted into commercial fibers.
- - - - Polyethylene
        
        High density polyethylene(HDPE)
        
        Disadvantage A tendency deformation, More dldvated temperatures may take it to its degradation level.
        
        Advantage Prevent the passing of humidity, Relative chmical inactivity, good thermostability in the interval from40 to 316 degree C.
        
        Low density polyethylene(HDPE)
      - Polypropylene
        
        Advantage Excellent chemical & solvent resistance, No solvent at room temperature, Very low water absorption, very good electrical insulation characteristics, Low specific weight, High merging temperature, good balance rigidity, tenacity, strength.
    - - Polymethyal
      - Polystyrene
        
        Disadvantage Brittle, poor chemicalresistance especially to organics, Susceptible to UV degradation, Flammable.
        
        Properties Rigidity, transparency, low moisture absorption, low density, Excellent electrical insulation characteristics, Dissolved in a wide range of solvents like hydrocarbons.
        
        Applications of Polystyren Toys, containers, Tape cassettes, disposable tumblers, display Products, egg box, dairy product containers.
      - Acrylonitrile Butadiene Styrene( Abs)
        
        Properties ABS can be molded and remolded in any shape. This plastic is comparatively soft and less strong and chemically less inert. The heat resistance is low and cannot be used at higher temperatures. It has Good impact resistance, Rigidity, strength and toughness, and moderate heat resistance.
        
        Applicatrion of Abs Toys, Refrigerator Linning material, Lawn and Garden equipment, Highway Safety devices, Automobile Parts, Hoses, Moulded parts.