The document discusses plastic materials. It lists the group members studying plastic and provides details on the basic raw materials used to make plastic, including coal, petroleum, limestone, salt, sulfur and others. It also describes the key constituents of plastic like binders, fillers, and plasticizers which are added to improve properties. Plastics are classified as thermoplastic or thermosetting depending on whether they soften with heat and cool to a fixed shape or require heat and pressure to mold. Examples of uses for each plastic type are given. In closing, the document outlines some key properties of plastic like durability, cost-effectiveness, recyclability, and safety compared to other materials.

1. TOPIC
PLASTIC

2. GROUP MEMBER’S
• Muhammad Rehman.
• Waleed ahmad.
• Abbas khan.
• Taimoor khan.
• Abdullah kamal.

3. PLASTIC
• Any non-metallic material that can be moulded
to desired shape.
• Raw materials of plastic:
The basic raw materials for plastic are the following natural
substance.
(1)Coal (2)Petrolium
(3)Limestone (4)Salt
(5)Sulphur (6)Air
(7)Water (8)Cellulose.

4. CONSTITUENTS OF PLASTIC
• Binder: Pollymeric compound use as binder.
• Fillers: The material added to the plastic to
improve their mechanical properties and then
ecnomical are called fillers.
• Plasticizers:Plasticizers are added to make them
soft and to improve their toughness to make then
flexibal like vegitable oil etc.
• Colouring matter:Chromium oxide and altrmrine
are added for colour in plastic.

5. CLASSIFICATION OF
PLASTIC
• Thermoplastic:Those plastic which are soften on
the application of heat with or without pressure
and require cooling to be set a shape.
• Uses:Toys,combs,toilet,goods, photographic
films,insulting tapes,electric insulation.

6. • Thermosetting:Those plastic which require heat
and pressure to mould them into a shape is called
Thermosetting.
• Uses:Telephone receivers,electric
plugs,radio and T.V cabinats, camera,automobiles
parts etc.

7. PROPERTIES OF PLASTIC
• Durability:Corrision resistance allowing to survive
outside In any wheather.
>Cost Effectiveness: Many plastic maerial are
very economical.
>Recycling:Unlike metals some plastic can be
recycle with out lossing any chemical properties so
we can use over and over again.
>Safety:Plastic material are much lighter then
metal.

8. ANY
QUESTION?

9. THANK YOU