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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:
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Discussion:
14 comments Page 2 of 2.
Nikhil said:   1 decade ago
Thermoplastic materials are those which becomes soft when it is heated and becomes hard when cooled.
Manan Joshi said:   1 decade ago
Plastic becomes hard is thermo setting plastic.
Rohit Singh said:   1 decade ago
Because they are mostly chain structured polymers. On heating chain goes to extend.
Suresh.S said:   1 decade ago
THERMOPLASTIC Material can be softened and re softened and reusable.
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