The Basics of Plastic

What is the origin of the word 'plastic' and what does it signify?

• Derived from Greek 'plastikos', meaning 'capable of being shaped or molded'

• Derived from Latin 'plasticus', meaning 'flexible'

• Derived from French 'plastique', meaning 'moldable'

• Derived from German 'plastik', meaning 'durable'

Discuss the environmental impact of plastic's slow decomposition rate and its implications for future generations.

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Identify the two major categories of plastic and explain the key difference between them.

• Thermoplastics and Thermoset; Thermoplastics can be remelted, Thermoset cannot

• Polyethylene and Polypropylene; Polyethylene is more flexible

• PET and HDPE; PET is more transparent

• PVC and LDPE; PVC is more toxic

Explain the significance of recycling in addressing the issue of plastic waste.

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What are some common uses of PET plastic, and why is it considered complex to work with?

• Water bottles, soda bottles; complex due to harmful fumes

• Toys, pipes; complex due to high cost

• Food containers, milk bottles; complex due to low strength

• Plastic bags, wraps; complex due to poor UV resistance

Discuss the challenges associated with recycling mixed plastics and the importance of keeping different types separate.

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Match the common use with the type of plastic it is typically made from.

Groups:

(a) PET

,

(b) HDPE

,

(c) PVC

,

(d) Other

• Crates

• Building products

• Acrylic glass

• Water bottles

• Toys

• CDs/DVDs

• Tape

• Film

• 3D printer filament

• Bowls

• Fake Leather

• Electrical fittings

At what temperature does PLA start melting?

• 200-210

• 190-200

• 240-250

• 220-230

Plastics such as; ABS, Acrylic or Polycarbonate fall into which category?

• Mix (7)

• HDPE (2)

• PVC (3)

• PS (6)