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Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 1 (Q.No. 2)
Engineering Materials
2.
Thermoplastic materials are those materials which
are formed into shape under heat and pressure and results in a permanently hard product
do not become hard with the application of heat and pressure and no chemical change occurs
are flexible and can withstand considerable wear under suitable conditions
are used as a friction lining for clutches and brakes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.
Suresh.S said:   1 decade ago
THERMOPLASTIC Material can be softened and re softened and reusable.
Rohit Singh said:   1 decade ago
Because they are mostly chain structured polymers. On heating chain goes to extend.
Manan Joshi said:   1 decade ago
Plastic becomes hard is thermo setting plastic.
Nikhil said:   1 decade ago
Thermoplastic materials are those which becomes soft when it is heated and becomes hard when cooled.
Anurag Sharma said:   10 years ago
A thermoplastic is a material which becomes soft when heated and hard when cooled. Thermoplastic materials can be cooled and heated several times. They can be recycled. When thermoplastics are heated, they melt to a liquid.
RAJU DEBSARMA said:   9 years ago
What is clutch lining material?
Aji said:   8 years ago
Thermosetting plastics setting hard when heated.
Rajesh said:   8 years ago
Thermoplastic are those plastic which is recycle by application of pressure and heat or softened when heated or hardended by cooling.
(2)
Gokul said:   7 years ago
What is the difference of Thermosetting and thermoplastic?
Deven.U said:   7 years ago
They can be used again and again as they can be softened again and again.
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