write the preparation properties and uses of nylon 6,nylon 66 , bakelite and urea formaldehyde resin
Answers
Answer:
Nylon-2 nylon-6 is a copolymer. It is polymide Condensation polymerization of glycine and w-amino caproic acid gives nylon-2 nylon-6
Uses of nylon-2 and nylon-6:-
1. Matrix Material in composite Materials.
2. In car components next to engine, such a intake manifolds due to near resistance
Answer:
Check the attachment for reference
Explanation:
Properties
Nylon 6
• they are synthetic fibres
• they possess amide linkage
• they have high tensile strength and high modulus ,
• the linear chains are closely packed by hydrogen bonding
Nylon 66
• it is a condensation polymer
• they are also fibres so they have tensile strength and high modulus
• they have strong intermolecular forces like hydrogen bonding between the linear chains
• it is also a Synthetic polymer
Bakelite
•they are synthetic polymers
•there also thermosetting , ie undergoes extensive cross linking upon heating so cannot be reused
•they are a condensation polymer of phenol and formaldehyde
Urea formaldehyde resin
•they synthetic polymers
•they are also condensation polymer of urea and formaldehyde
•they are also fibres
Uses
Nylon 6 - used in the manufacture of tyre cords fabrics and ropes
Nylon 6,6 - used in sheets and in textile industries
urea formaldehyde - for making unbreakable cups and laminated sheets
Bakelite - for making handles of utensils , electrical switches and computer discs