PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoThe plastics we use in our lifestyle also are made from polymers. All plastics do not have an equivalent sort of arrangement of units.
In some, the arrangement of a monomer is linear, and in others, the arrangement is cross-linked.
Types of plastics
Thermoplastics:
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.
Thermosets:
Thermosetting plastics
- 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.
Register for free to see more content