How do u make nylon? chemical wise.?

Question

I no that there r many different kinds of nylon..so could u say how to make nylon 6,6 and others if u no it..?

Answer 1

Nylon is a polyamide - a polymer that is made up of 2 different monomers, a diamine and a dicarboxylic acid, joined together by peptide linkage. The amine groups of the diamine monomers -NH2 react with the -COOH groups of the dicarboxylic acid monomers in a condensation reaction. This reaction produces an amide bond or peptide bond -CONH between the diamines and dicarboxylic acids and eliminates a molecule of water. The -CONH group is a carbon and nitrogen bonded together with an oxygen atom double bonded to the carbon and a hydrogen atom bonded to the nitrogen.

The process is called condensation polymerisation because it is a condensation reaction the forms the bonds between the monomers.

H2N-R-NH2 + HOOC-R-COOH = (-HN-R-NHOC-R-CO-) +H2O

This structure is repeated many times to produce a long chain polyamide - nylon.

The numbers in the name of the nylon depends on the the number of carbon atoms in the diamines and dicarboxylic acids used. The first number is the number of carbons in the diamine and the second number is the number of carbons in the dicarboxylic acid.

So nylon-6,6 is made up of the diamine 1,6-diaminohexane (H2N-CH2-CH2-CH2-CH2-CH2-CH2-NH2) and the dicarboxylic acid hexandioic acid (HOOC-CH2-CH2-CH2-CH2-COOH).

Different nylons can be made by using different diamine and dicarboxylic acid monomers, for example, nylon-6,10 is made up of 1,6-diaminohexane and decanedioic acid, nylon-5,8 is made up of 1,5-diaminopentane and octanedioic acid and nylon-5,10 is made up of 1,5-diaminopentane and decanedioic acid.

The overall structure of nylon is held together by intermolecular forces, the strongest being hydrogen bonding, that occur between the individual polyamide chains.

Answer 2

Nylon 5 10

Answer 3

Nylon is made by forcing molten nylon through very small holes in a device called a spinneret. The streams of nylon harden into filament once they come in contact with air. They are then wound onto bobbins. These fibers are drawn (stretched) after they cool.

Drawing involves unwinding the yarn or filaments and then winding it around another spool. Drawing makes the molecules in each filament fall into parallel lines. This gives the nylon fiber strength and elasticity.

After the whole drawing process, the yarn may be twisted a few turns per yard or metres as it is wound onto spools. Further treatment to it can give it a different texture or bulk.

Answer 4

Traditionally DuPont made Nylon 66 by reacting HexamethyleneDiamine with either Adipic Acid or Adipoyl Chloride.
That is the chemical reaction.

Answer 5

Did you know Nylon is a contraction of New York and London?

Answer 6

1

Answer 7

React
1,6-diaminohexane & hexan-1,6-dioic acid

H2NCH2CH2CH2CH2CH2CH2NH2 +
HOOCCH2CH2CH2CH2COOH =

-[HNCH2(CH2)4CH2NHCO(CH2)4CO]- (nylon 6,6) + H2O

The 'sixes' in the name 'NYLON 6,6) refer to the fact that there are 6 - carbons in each of the two reactants. It is possible to have (NYLON 4,6) or Nylon (6,4) or theoretically any combination/length of the carbon chains.

Sometimes instead of using Hexane-1,6-dioic acid, hexan-1,6-dioyl chloride is used.

Answer 8

nylon is a by product of petroleum. It can arrive to the factory in a solid form, melted and spun into yarn and then transferred to clothes factories.