plasticy like plastic olol

1. Plastics
Group E(Sasank,Justin, Chia Wei,Jia Tong)

2. Questions
1.Plastics are classified according to the Plactic Identification Code.
What are the types of plastic represented by different codes?
Plastic #1: Polyethylene Terephthalate (PET or PETE)
Plastic #2: High Density Polyethylene (HDPE)
Plastic #3: Polyvinyl Chloride (PVC)
Plastic #4: Low Density Polyethylene (LDPE)
Plastic #5: Polypropylene (PP)
Plastic #6: Polystyrene (PS)
Plastic #7: Other (O)

3. 2.What characteristics of plastic make them popular?
-Resistant to corrosion and chemicals
-Low electrical and thermal conductivity
-Durable
-Resistant to water and have low toxicity.
-Resistant to shock

4. 3.What environmental problems are caused by the
prevalent use of plastics?
-Hazardous to wildlife(Choking hazard)
-Marine Pollution
-Depletion of ozone layer

5. 4. How does technology help solve these
environmental problems?
-Technology for recycling plastic is available. However,
the market for recycling certain plastics is very small and
is shrinking.

6. 01-PET
Polyethylene terephthalate also known as PET or PETE.
Application:The vast majority of Disposable soda and Water bottles.
Properties:
-Unreinforced
-Semi-crystalline thermo-plastic
polyester
-Excellent wear resistance
-Low coefficient of friction
-Superior dimensional stabilty
-

7. 02-PE-HD
High-density polyethylene or PE-HD.
Application:Milk jugs, Detergent bottles, Juice bottles, Butter tubs, and
Toiletries bottles.
Properties:
-Strong
-Resistant to chemicals and moisture
-Permeable to gas
-Ease of processing and forming
-Stiff
-Tough

8. 03-PVC
● It is a polymer made by catalytic polymerization of
vinyl cloride.
● Properties:strong, difficult to burn, strong acid and
bases resistance comparing to other chemical and
organic slovents.
● Common Application:Plastic pipes, outdoor feature,
shrink wrap, water bottle, salad dressing,

9. 04-PE-LD A.K.A Polyethylene low-density
● It is made from monomer ethylene.
● Properties: relatively low tensile
strength at yield and surface hardness,
high viscosity, soft to rigid, sensitive to
tension cracks, water repellent
Application: Dry cleaning bags, produce
bags, trash can liners, food storage
containers.

10. 05-PP
Polypropylene or polypropene.
Properties:
-Bad conductor
-Translucent
-Hard
-Stiff
-Resistant to many chemicals
Application: Trays, pails, bottles and funnel.

11. 06-PS
Polystyrene or more commonly known as Styrofoam.
Properties:
-Electrical insulator
-Small
-Lightweight
-Shock absorbing
-Bad conductor of heat
-Hard
-Stiff
Applications: trays, containers, disposable eating utensils,
foamed cups, plates, and bowls.

12. 07-O
● (Other) is the category which covers all the
other plastic materials other than the 6 listed.
Or the other things that are made with plastic
resin, or has multiple types of plastic resins
in it(MIX) For example: BPA, polycarbonate
● The properties depends on the resin or the
combination of resins used in the plastic
● It can be applied in bottles