Biology, asked by neetusharma8876sharm, 3 days ago

Define between thermoplastics and thermosetting ??

Answers

Answered by DaRvl
0

Answer:

Thermoplastics : - Plastics which have a linear arrangement of molecules are thermoplastics. These plastics can be deformed easily on heating and can be remoulded into a new shape. ... Thermosetting plastics : - Plastics which have a cross - linked arrangement of molecules are called thermosetting plastics.❤️❤️

Answered by preeti353615
0

Answer:

  • A thermoplastic is a plastic polymer substance that becomes pliable or moldable at a high temperature before solidifying when cooled.
  • Thermosetting plastic is a type of plastic that, once set, does not soften when heated and cannot be moulded again.

Explanation:

Thermoplastic

  • The process of addition polymerization can be used to make thermoplastics.
  • Injection moulding, extrusion, blow moulding, thermoforming, and rotational moulding are all methods for processing thermoplastics.
  • Secondary bonds exist between molecular chains in thermoplastics.
  • Low melting temperatures and tensile strength characterise thermoplastics.
  • When opposed to thermosetting plastic, thermoplastic has a lower molecular weight.

Thermosetting  

  • Condensation polymerization is used to make thermosetting polymers.
  • Compression moulding and reaction injection moulding are two methods for processing thermosetting plastic.
  • Primary bonds hold molecular chains together in thermosetting polymers, which are held together by strong cross-links.
  • The melting point and tensile strength of thermosetting polymers are both high.
  • The molecular weight of thermosetting plastic is very high.
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