1. GROUP 7
ARINA IRMAN
NIK NURUL FATIHAH MOHD NOOR
MUHAMMAD SYAMSUL MAARIF

2.  Was developed in 1953 by Bayer in Germany,
and General Electric in US independently.
 one of the high performance heterochain
polymeric material that comprises the family
of engineering thermoplastic

3. •PC molecule composed by a bisphenol A part and carbonate
group
•Bisphenol A contain two aromatic ring which are responsible for
PC stiff backbone
•Bisphenol also contribute to PC inability to crystallize
•It contribute to be amorphous and give the polymer transparency
•High glass transition temperature (Tg=145°C)

4. 1) Bisphenol A
group reactted
with proton
acceptor such
as NaOH to
obtained the
polyemrization
functional
group

5. 2) The
deprotonataed
Bisphenol A
reacts with
Phosgene and a
catalyst at
temperature
beteween 25-35
degree

6. PROPERTIES DESCRIPTION
Temperature •Glass transition : 145ᵒC
•Melting point : 225ᵒC
Amorphous 1.20 g/cm3
density
Molecular weight 254.3 g/mol
Resistance •Excellent : dilute acids and mineral oils
•Good : Alcohols and vegetable oils
•Limited : Aldehydes
•Poor : Concentrated Acids, Bases, Esters, Aliphatic
Hydrocarbons, Aromatic Hydrocarbons, Halogenated
Hydrocarbons, Ketones and Oxidizing Agents.

7. ADVANTAGES DISADVANTAGES
Strength Production
•High & lightweight •High processing temperature
•Tough & stable
•Resist temperature to 120ᵒC
UV protection Resistant
•‘bloom’ when exposed to sunlight •Poor resistant to alkalies
Easy to modify Needs UV stabilization
•Safe to machine

8.  Combination of diisocyanate
 Thermoplastic
 Common comercial polymer, and can process
amazingly diverse properties depending on
how they are manufactured
 The present of both amide and carbamide
give the characteristic of plastic in this
polymer

9.  General component

10.  synthesis

11. PROPERTIES DESCRIPTION
Mechanical •Resistance to further tearing
•Resistance to abrasion
Electrical Surface resistance
Fabrication •High : strength (impact, tensile, shear, and flexural),
modulus of elasticity
•Excellent : strength retention at elevated
temperatures, flow resistance (creep and cold)
•Low : deformation under load, coefficient of thermal
expansion
•good electrical insulation properties
•easy to fabricate
Others •Microbial resistance of PUR
•Resistance to media
•Resistance to atmospheric corrosion
•Fire resistance

12. ADVANTAGES DISADVANTAGES
Abrasion resistant Durability
•outwear other materials •hydroscopic tendencies
Load bearing capacity Odour
•High, ideal material for load •petroleum-based chemical,flame
wheels, heavy duty couplings retardant fumes cause physical
problems; this becomes irritating.
Weather resistant Health Problems
•resistance to oxygen, ozone, •releases toxic fumes (symptom :
sunlight and general weather allergic reactions, rashes, difficulty
conditions breathing, loss of consciousness,
blindness)
Excellent noise abatement Environmental Issues
properties •blowing agents produce
•used to replace rubbers for greenhouse gases
improved sound/vibration
dampening

13. POLYCARBONATE POLYURETHRANE
•Electronic components •Belts
•Construction materials •Prototype machined parts
•Data storage •Wood finishing
•Automotive, aircraft, and •Furniture
security components •Automobile seats
•Niche applications •Houses, sculptures, and
•Medical applications decorations