Nylon 6

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  • Nylon 6 or polycaprolactam is a polymer developed by Paul Schlack.
  • To reproduce the properties of nylon 6,6 without violating the patent on its production.
  • Unlike most other nylons, nylon 6 is not a condensation polymer, but instead is formed by ring-opening polymerization.
  • This makes it a special case in the comparison between condensation and addition polymers.
  • Its competition with nylon 6,6 and the example it set have also shaped the economics of the synthetic fiber industry.
  • It is a semicrystalline polyamide.
  • Nylon 6 is made from some of the chemicals we get from crude oil.
  • The same chemicals can also be made into wax for candles or crayons.Nylon 6.
  • Only one type of molecule is used in the formation of nylon 6, which also has 6 carbon atoms.
  • The repeat unit for type 6 nylon is made from caprolactam (also called e-caprolactam).
  • Nylon 6 also known as Polyamide, is characterized by a combination of high strength, toughness and abrasion resistance and is ranked as an Engineering Plastic.
  • This is because of its unique balance of mechanical, thermal, frictional and chemical properties.
  • Nylon behaves in a predictable, reproducible manner under load and in known environments.
  • Engineers and designers are looking to nylon as a substitute for design material such as phosphor bronze, gunmetal, cast iron, copper, aluminium and the entire family of steels.
  • Nylon 6-6, also referred to as nylon 6,6, is a type of nylon.
  • Nylon comes in many types, and the two most common for textile and plastics industries are nylon 6 and nylon 6,6.
  • Nylon 6,6 is made of hexa methylene diamine and adipic acid, which give nylon 6,6 a total of 12 carbon atoms in each repeating unit, and its name.
  • Nylon is well accepted for several engineering applications.
  • It is tough and hard, with good mechanical properties, high resistance to abrasion and impact and low friction properties.
  • Nylon 6 fibers are tough, possessing high tensile strength, as well as elasticity.
  • They are wrinkle-proof and highly resistant to abrasion and chemicals such as acids and alkalis.
  • The fibers can absorb up to 2.4% of water, although this lowers tensile strength.
  • Nylon 6 is used as thread in bristles for toothbrushes, surgical sutures, and strings for acoustic and classical musical instruments, including guitars, sitars, violins, violas, and cellos.
  • It is also used in the manufacture of a large variety of threads, ropes, filaments, nets, and tire cords, as well as hosiery and knitted garments.
  • It can also be used in gun frames, such as those used by clock, which are made with a composite of Nylon 6 and other polymers.
  • It has the potential to be used as a technical nutrient
  • Nylon can be welded by all the processes normally employed for thermoplastics. The components should be dry prior to welding, since excessive moisture can reduce the strength of the bond.
  • Fibers of nylon 6 exist in two distinct crystalline phases
    upon crystallizing from the melt after the melt spinning
    process and subsequent conditioning.

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