Amodel® PPA

Superior to standard polyamides in terms of thermal properties, moisture resistance and chemical resistance
 
Amodel® PPA outperforms standard polyamides, with higher strength and stiffness at high temperatures; It retains its properties better in wet environments and has greater resistance to a wider range of chemicals. 

Higher heat resistance
Amodel® PPA is used as a metal replacement in high-temperature automotive applications. Continuous operating temperature from 120°C to 185°C (248°F to 365°F). Heat deflection temperature (HDT) up to 310°C (590°F).
Comparison of thermal properties, ASTM test method


Low moisture absorption
Humid environments can have a devastating effect on the mechanical properties of standard polyamides. Even at high humidity levels, the low moisture absorption of the Amodel® PPA significantly reduces changes in strength and stiffness.
Effect of Humidity on Tensile Strength, ASTM Test Method 



Effect of Humidity on Flexural Modulus, ASTM Test Method



Higher chemical resistance

1. Even at high temperatures, Amodel® PPA's highly aromatic ring structure provides greater resistance to a wider range of chemicals than standard aliphatic polyamides. This allows automotive, electrical, and industrial components to withstand long-term exposure to harsh chemicals:
2. Biodiesel
3. Brake fluid
4. Calcium chloride
5. Ethylene glycol
6. Synthetic motor oil
7. Anti-icing road salt
8. Sulfuric acid
9. Transmission fluids
10. Zinc chloride 

Trademark
Amodel® PPA offers more grades than any other material in the industry. A one-by-one comparison of typical properties provides a quick insight into the properties of the material. Individual data sheets are also available.
Base resin
How do we determine grades
Amodel® PPA products are based on three semi-aromatic, semi-crystalline polyamide-based resins, each offering unique performance and processing characteristics.
Glass fibers, heat stabilizers, impact modifiers, minerals, and other materials are blended together with these base resins to produce a broad line of Amodel® PPA products for a wide range of applications.




Glass-filled grades
Glass fibers increase strength and stiffness, while improving short-term thermal properties and long-lasting creep and fatigue resistance. For those requiring wall thicknesses greater than 3 mm (0.125 in.) applications, consider choosing from our AS grades.
Strength and stiffness comparison, ASTM test method