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Amodel® Polyphthalamide
Designed to Thrive where only the Strong Survive
| When it comes to retaining critical mechanical properties in tough environments, Amodel polyphthalamide (PPA) does more than survive, it thrives. Extreme heat? High humidity? Aggressive chemicals? They’re all in a day’s work for Amodel PPA. |
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Outperforms Typical Nylons
Compared to typical nylons, Amodel PPA has higher thermal capabilities and is stronger, stiffer and less sensitive to moisture. It retains its excellent mechanical properties – including fatigue and creep resistance -- over a broad temperature range in humid and chemically aggressive environments.
- Higher strength and stiffness at elevated temperatures
- Better retention of mechanical properties in high humidity
- Greater resistance to a broader range of chemicals
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EGR Valve
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Really Takes the Heat
Amodel PPA boasts heat deflection temperatures (HDT) to 310°C (590°F), making it possible to withstand the high reflow temperatures of SMT processing without blistering or warping.
Continuous-use temperatures from 120-185°C (248-365°F) make Amodel a reliable choice for demanding under-the-hood automotive components.
Retains Mechanical Properties in Humid Environments
Humid environments can have a devastating effect on the mechanical properties of typical nylons. Amodel PPA’s lower water absorption results in significantly better retention of strength and stiffness properties, even with high levels of humidity.
Resistance to a Broad Range of Chemicals
Amodel PPA’s highly aromatic ring structure provides greater resistance to a broader range of chemicals than typical nylons, even at high temperatures. This allows it to be used in demanding automotive and industrial applications where it must withstand prolonged exposure to aggressive chemicals, such as:
- Bio-diesel fuel
- Brake fluid
- Calcium chloride
- Glycols
- Synthetic motor oil
- Road salt
- Sulfuric acid
- Transmission fluid
- Zinc chloride
Amodel PPA Products
Amodel PPA is available in a breadth of grades unequaled in the industry. A side-by-side comparison of typical properties provides a quick overview of performance capabilities. Individual data sheets are also available.
How We Make the Grades
Amodel PPA products are based primarily on three semi-aromatic, semi-crystalline polyamide base resins, with each offering distinct performance and processing characteristics.
Glass fibers, heat stabilizers, impact modifiers, minerals and other materials are compounded with these base resins to create a comprehensive selection of Amodel PPA products for use in a vast array of applications.
Glass fibers boost strength and stiffness, while enhancing short-term thermal properties as well as long-term resistance to creep and fatigue. For applications requiring wall thickness greater than 3 mm (0.125 in.), consider one our AS grades.
For applications that require wall thicknesses greater than 3 mm, Solvay offers a series of glass fiber reinforced structural grades, which are designated as AS grades.
Impact modifiers add toughness and increase impact resistance. Toughened Amodel PPA products are designated with the AT prefix. For applications needing low modulus at high temperature, consider an unfilled toughened grade.
Minerals reduce warpage and differential shrinkage by disrupting the orientation of the glass fiber. This results in more uniform shrinkage and improves dimensional stability.
High-flow grades improve the molding of thin-walled components typical of electronics applications and are designated by the HFZ prefix.
High-reflectivity grades for LEDs exhibits high heat resistance, high strength and stiffness over a broad temperature range, low moisture absorption, excellent chemical resistance and excellent electrical properties.
Flame retardant grades have achieved a UL 94 V0 rating and are compatible with SMT processing techniques such as infrared reflow and vapor phase soldering.
Outstanding electrical properties make Amodel PPA ideal for use in connectors, switches and other applications requiring the material to act as an electrical insulator.
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