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Polyamide - Nylon 4, 6 ( PA 4,6 )

Material Information

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We stock and supply the following standard forms:
Fiber Film Rod Sheet
Fiber Film Rod Sheet

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Common Brand Names:
Stanyl
 
General Description:  

See also General information under Nylon 6

General Description : A semi-crystalline, yellowish engineering thermoplastic that is often colored brick red. It has higher crystallinity and better chemical resistance than nylon 6 or 6,6 and similar water absorption, though the associated dimensional change is less. Compared to other (aliphatic) nylons it has much better retention of properties at elevated temperatures, reportedly because of the "highly symmetrical" polymer chain and its relatively high concentration of amide groups (four methylene groups in both the acid and the amine segments).

Applications are broadly similar to other nylons - engineering, electrical and electronic components particularly those exposed to (sustained) high temperatures.

   

Electrical Properties

Dielectric constant @1MHz 3.8-4.3
Dielectric strength ( kV mm-1 ) 20
Dissipation factor @ 1kHz 0.35
Surface resistivity ( Ohm/sq ) 1012-1014
Volume resistivity ( Ohmcm ) 1013-1015

Mechanical Properties

Hardness - Rockwell M92
Izod impact strength ( J m-1 ) 80
Tensile modulus ( GPa ) 3.1-3.3
Tensile strength ( MPa ) 55-100

Physical Properties

Density ( g cm-3 ) 1.18
Flammability V2 @ 0.8mm
Limiting oxygen index ( % ) 24
Radiation resistance Fair
Water absorption - equilibrium ( % ) 3.7
Water absorption - over 24 hours ( % ) 1.3

Thermal Properties

Coefficient of thermal expansion ( x10-6 K-1 ) 80-90
Heat-deflection temperature - 0.45MPa ( C ) 220
Heat-deflection temperature - 1.8MPa ( C ) 160
Lower working temperature ( C ) -40
Thermal conductivity @23C ( W m-1 K-1 ) 0.30
Upper working temperature ( C ) 100-200

Buy Polyamide - Nylon 4, 6 on-line

We stock and supply the following standard forms:
Fiber Film Rod Sheet
Fiber Film Rod Sheet

Choose a form to search our on-line catalog  

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