Plastics 1
What are the 3 R's in plastics?
Reduce, reuse, recycle
The 2 main elements in monomers that make up plastic
How many years does it take for a plastic straw to decompose?
A) 2 years
B) 20 years
C) 200 years
D) 2000 years
C) 200 years
The number of years it takes for a plastic bag to decompose in the environment
A) 2 years
B) 20 years
C) 200 years
D) 2000 years
B) 20 years
Name 1 advantage and 1 disadvantage of using plastics.
Advantages: lightweight, low cost, moldable, resistant
Disadvantages: Polluting! (not biodegradable, waste accumulation, sometimes hard to recycle, environmental impact)
True or False: The most flexible plastics are elastomers.
True!
True or False: The most common elastomers include silicones, polyester resins, and PVC.
False! (rubber, neoprene, and silicones)
True or False: Polyester resins and Bakelite are thermosets
True!
True or False: The most easily recyclable plastics are groups 1, 2, 4, and 5.
True!
True or False: Plastics identified with RIC code 7 are easily recyclable.
False! They are very difficult or impossible to recycle.
A chain of monomers is called a ...
Polymer
Small plastic pellets made from recycled plastic waste are called .....
Nurdles
The numerical code that describes the recycling ability of a plastic is called...
RIC (Resin Identification Code)
Very small pieces of plastic that build up in the environment and in our bodies are called...
Microplastics
What are synthetic plastics obtained from?
Petroleum (and its derivatives)
Neoprene is used in diving suits. Name 2 characteristics of neoprene.
The procedure used to form bottles...
Blow moulding
Neoprene, rubber, and silicones are types of:
A) Thermoplastics
B) Thermosets
C) Elastomers
C) Elastomers
The procedure used to form pipes is...
Extrusion
Shampoo bottles are made from what type of plastic?
A) HDPE
B) LDPE
C) PET
D) PVC
A) HDPE
What type of moulding uses heat and pressure to mould thermoset plastics?
Compression moulding
What is the name of the large collection of trash / marine debris in the ocean? (Hint: Located in the ocean between Hawaii and California)
Great Pacific Garbage Patch
The plastic used in 3D printing
ABS
What type of moulding involves pushing melted plastic into a cold mould, where it solidifies. It is used to make casings for kitchen appliances, toys, buckets, bowls, etc.
Injection moulding
What is the correct sequence of steps for plastic recycling?
1) Collecting, 2) washing, 3) drying, 4) crushing, and 5) forming nurdles.