what is plastic ? explain its physical properties
Answers
Answer:
Plastics generally have resistance to corrosion and chemicals, low electrical and thermal conductivity, high strength-to-weight ratio, colors available in a wide variety and transparent, resistance to shock, good durability, low cost, are easy to manufacture, resistant to water and have low toxicity.
The properties of most plastics are these:
* Easy to work and shape,
* Have a low production cost,
* Possess low density,
* Tend to be waterproof,
* Good electrical insulators,
* Acceptable acoustic insulation,
* Good thermal insulation, but most can not withstand very high temperatures,
* Resistant to corrosion and many chemical factors;
* Some are not biodegradable or easily recyclable, and if they burn, are highly polluting.