| Polyamid |
|
| Plastic Type | Thermoplastic |
| Melting Point | 190-350 0C |
| Density | 1,13- 1,35/1,41 g/cm3 |
| Tensile Strength | 90-185 N/mm2 |
| Max. Use Temperature | 150-185 0C |
| Dielectric constant | 3,4-3,6 @1MHz |
| Resistance (ohm/cm) | PA 6 5x1012 |
Polyamid also known as Nylon ( trade name given by DuPont )
finds it's use in cable production industry as isolation material. First
Polyamid was discovered 1931. First mass production begun in 1938 in USA.
It was PA 6,6 at first. Later in 1940'S PA 6 was developed in
Germany. Polyamid today comes in different grades such as
PA6-PA6,6-PA6,12- PA4,6-PA12-PA11 etc. Polyamid comes in different
forms. It comes in pellets for extrusion purposes.
Polyamid is used in coaxial and communication cables
because of its' high dielectric constant. Polyamide also has high level
of chemical resistance. This is the reason polyamid is preferred as jacketing
material in such environments. PA is highly flammable.
References:
www.essentialchemicalindustry.org
www.bpf.co.uk
https://en.wikipedia.org/wiki/Nylon