The plastics we use in our lifestyle also are made from polymers. All plastics do not have an equivalent sort of arrangement of units.
Counting on the sort of arrangement, we have two main sorts of polymers – thermoplastics and thermoset. The below image represents the chain type in both the plastics and the force of attraction between them.
In some, the arrangement of a monomer is linear, and in others, the arrangement is cross-linked.
Types of plastics
Crushed plastics for recycling
- These are plastics that deform their shape on exposure to heat. i.e. is these plastics can be reused by heating and can be moulded into different shapes.
- Thermoplastics are flexible in nature.
- These are expensive, softens when heated and are weak in nature.
- It is used in making toys, combs, water bottles, straws etc.
- Polythene, polyesters, and PVC are some examples for thermoplastics.
- These are also called as thermosetting plastics.
- Thermosets are plastics that cannot be recycled.
- Thermosets cannot be moulded and reshaped.
- They are not flexible and break if force is applied.
- These are inexpensive and do not softens when heated.
- These are hard and poor conductors of heat and electricity.
- It is used as insulators in handles of cooking utensils, electrical switches etc.
- Bakelite, silicone, and melamine are some of examples for thermosets.