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Name a property of PVC
strong or waterproof
Name a property of PET
Rigid, transparent
Name an example of PET
Transparent bottles, water, oil, cosmetics
Name a property of HDPE OR LDPE
rigid, resistant OR Soft, light, transparent
Name an example of HDPE OR LDPE
Buckets, containers, bottles OR Plastic bags
Name a property of PP (Polypropylene)
Flexible, resistant to chemicals, hard surface
Name an example of PP (Polypropylene)
Bottles, bumpers, household appliances, ropes
Name a property of hard polystyrene (PS) OR expanded polystyrene (PS)
Transparent, can be colored OR Porous, soft
Name an example of hard polystyrene (PS) OR expanded polystyrene (PS)
transparent films, dairy product containers OR Packaging, insulations
How many times can thermosetting plastics be heated?
Once
What is an example of polyurethane?
sponges, foam, glue, varnish, transmission belts, frictions wheels, insulators
Electrical plugs are made of what type of plastic?
Bakelite
Kitchen countertops, dishes, and food containers are made of what type of plastic?
Melamine
Name one elastomer
Natural rubber, synthetic rubber, neoprene
Name one plastic forming technique
Extrusion, calendering, vacuum forming, molding
Name one step of extrusion
1 Thermal plastic material is added to a machine where they melt and form liquid. 2. the plastic is shaped 3. put in cool water to harden
