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Chapter 24, Problem 24.1QP

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CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933

Solutions

Chapter
Section
FindFindarrow_forward

CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933
Interpretation Introduction

Interpretation: Bakelite, a thermoplastic or thermosetting plastic has to explained. Bakelite can be recycled or not has to be explained.

Concept Introduction:

  • Thermoplastics are polymers which gets melted on heating and can be reshaped.  These are formed by addition polymerisation reaction and are linear in structure.
  • They are recyclable and reshaped.
  • Examples are Polystyrene, Polyethylene, PVC, Teflon, etc.
  • Thermosetting plastics are polymers which become hard and infusible solid on heating.  These are formed by condensation polymerisation reaction and possess three dimensional cross linked structures.
  • They are not recyclable and reshaped.
  • Examples are Melamine formaldehyde resin, bakelite etc.

To Explain: whether bakelite is a thermoplastic or thermosetting plastic also explain whether bakelite can be recycled or not.

Answer

Answer

  • Bakelite is a thermosetting plastic
  • No, bakelite cannot be recycled.
Explanation
Bakelite is a polymer which is formed by the condenstion of monomer units of formaldehyde and phenol. It is also called as phenol formaldehyde resin. It a thermosetting plastic with three dimensional cross linked structure.  It cannot be reshaped or recycled.

Bakelite is a thermosetting plastic and hence, it cannot be recycled.

Conclusion

Bakelite, a thermoplastic or thermosetting plastic and bakelite can be recycled or not were explained.

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