PPA

Alternative Designations: PPA | Polyphthalamide-Plastic

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Description

PPA is a semi-aromatic polyamide that combines the strength of PA with the heat resistance of PPS. It has a long-term service temperature of 180-220°C, but lower moisture absorption than standard nylon and higher processing requirements.

Key Features

1. Ultra-high heat resistance (HDT＞290°C)
2. Low moisture absorption (better dimensional stability than PA66)
3. Excellent mechanical strength (tensile strength＞120 MPa)
4. Chemical corrosion resistance (resistant to fuels, coolants and weak acids/bases)