POLYAMIDES

Generic name: Nylon

Solvents: Phenols and phenol/chlorinated hydrocarbon mixtures.
Relatively unaffected by: hydrocarbons, esthers, ethers, oils, concentrated alkalis.
Decomposed by: concentrated mineral acids, halogens.
Combustion: melts, darkens, finally burns with a small flame, easy to extinguish,
giving a white smoke.

Specific gravity
Nylon 6 ..... 1.13 to 1.14
Nylon 11 .... 1.04 to 1.05
Nylon 6.6 ... 1.14
Nylon 6.10... 1.09

Water absorbtion: 10% on prolonged immersion.

Permeability to gases:
- O2  ... 0.04
- CO2  .. 0.16 to 0.20
- N2  ... 0.01

Specific Heat: 0.4 to 0.55
Conductivity: 4.5 to 6.9 (10-4 cal)/(cm s deg.C)
Coefficient of linear expansion: (10-4 /deg.C)

Electrical Properties
Volume resistivity: 1010 to 1014 (ohm cm)
Dielectric strength: 16 kV/mm
Dielectric constant: 4.0 (air dry, 50Hz)

Elastic modulus (daN/mm2)
                 Plastics          Fibers
Nylon 6             70            200 to 300
Nylon 11            100             500
Nylon 6.6         200-300           250
Nylon 6.10        180-200           400

Tensile, flexural, compression(daN/mm2) and impact strength (ft lbf/in)(plastics)
          Tensile strength    Flexural Strength  Compression strength  Izod test        
Nylon 6         6 to 7                5                   >2           3 to 4.5
Nylon 11        5 to 6                7                    5              4
Nylon 6.6       7 to 8               10                   3.5             2
Nylon 6.10      5 to 6                7                    2              2

Hardness (Rockwell)
Nylon 6     R65 to R85
Nylon 11    R110
Nylon 6.6   R110-150
Nylon 6.10  R111

Friction:(on steel) 0.2 to 0.35