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Polyaramid ( Polymetaphenylene isophthalamide ) - Sheet   -   Material Information


Buy Polyaramid Sheet on-line

We stock and supply the following standard forms:
Chopped Fiber Fiber Film Honeycomb Sheet
Chopped Fiber Fiber Film Honeycomb Sheet
Common Brand Names:
Nomex
 
General Description:  

General Description : An infusible, wholly aromatic polymer that can strictly be described as nylon I,I - but rarely is. Manufactured only as a fiber (by solution spinning), it has a very high thermal stability and temperature and flame resistance. In contrast to its chemical isomer Kevlar®, its tensile properties are similar to those of normal textile fibers but its hydrolysis resistance in hot wet conditions is better (than Kevlar's). Its radiation resistance is also very good.

The fiber is converted into a number of fiber-based forms, of which the following are available from Goodfellow's stock : calendered and uncalendered papers, pressboards of three different densities and honeycomb. The last is made from Nomex® paper coated in a phenolic resin. Other forms, eg felts, can be available as special orders.

Applications include protective clothing (e.g. for firefighters and racing drivers), process equipment and insulation and filtration media.

Explanation of Type numbers


T410 Calendered Paper
T411 Un-calendered Paper
T418 Calendered Paper, containing 50% mica
T992 Low Density Pressboard
T993 Medium Density Pressboard
T994 High Density Pressboard

   
 

   

Technical Data for   Polyaramid


Polyaramid Sheet - Standard Products   Click here to display prices
AR313100Polyaramid Sheet,    
Thickness:1.0mm,    Condition:Pressboard,    Type:T993 - Medium density Pressboard,    
AR313110Polyaramid Sheet,    
Thickness:1.0mm,    Condition:Pressboard,    Type:T994 - High density Pressboard,    
AR313150Polyaramid Sheet,    
Thickness:1.5mm,    Condition:Pressboard,    Type:T992 - Low density Pressboard,    
AR313300Polyaramid Sheet,    
Thickness:3.0mm,    Condition:Pressboard,    Type:T993 - Medium density Pressboard,    
 
AR313310Polyaramid Sheet,    
Thickness:3.0mm,    Condition:Pressboard,    Type:T994 - High density Pressboard,    
AR313450Polyaramid Sheet,    
Thickness:9.6mm,    Condition:Pressboard,    Type:T994 - High density Pressboard,    
Polyaramid Sheet - Standard Products   Click here to display prices

Properties for Polyaramid Sheet

Property Value
Material T992 T993 T994
Density g cm-3 0.5 0.83 1.14
Dielectric Constant @ 60Hz 1.7 ~3.5 ~4.4
Dielectric Strength @3mm thick kV mm-1 15-32 ~33-66 ~25-70
Dissipation Factor @60Hz 0.02 ~0.09 ~0.02
Extension to break - Longitudinal % 3 5.5
Extension to break - Transverse % 4 7
Limiting Oxygen Index % 29 32
Tensile strength - Longitudinal MPa 14.5 56 120
Tensile strength - Transverse MPa 11 32 70
Thermal Conductivity @23C W m-1 K-1 0.07
All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

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

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