PPA (Polyphthalamide)

PPA is a high‑performance semi‑aromatic polyamide, commonly known as high‑temperature nylon. Core features: excellent heat resistance with long‑term service temperature of 170‑200 °C; it can withstand lead‑free reflow soldering above 280 °C for short‑term exposure. It has much lower water absorption than conventional polyamides (e.g. PA6 / PA66), maintaining excellent dimensional stability and mechanical strength under high‑temperature & high‑humidity conditions. It delivers high strength and high rigidity; tensile strength can exceed 270 MPa after glass‑fiber reinforcement, with outstanding creep resistance and fatigue resistance. It also features superior chemical resistance (oil‑resistance & solvent‑resistance) and good electrical properties. Its main limitation is lower ductility compared with ordinary nylon and sensitivity to strong acids.

Main Applications

Electrical & electronics (core application): SMT connectors, circuit‑board assemblies, mobile‑phone antennas, USB‑C ports, memory slots and other components requiring heat resistance for lead‑free soldering.

Automotive industry: high‑temperature parts including engine covers, sensor housings, fuel pipelines, throttle valves, water‑pump impellers and lamp reflectors.

Aerospace & industrial applications: aircraft interior parts, high‑temperature bearings, sealing components, oil‑field parts and hot‑water‑system articles such as pump housings and valves.

Please specify your additional requirements: impact performance, melt flow index, ash content, environmental compliance, gloss level, surface pits and other physical‑property parameters.

MOQ: 1 ton upon successful sample testing. After‑sales: return and replacement for quality‑related defects.

Participation Process

Recycled pelletizing manufacturers please contact supplier service for supply registration.

Buyers: Click group‑purchase or contact procurement service to submit your procurement requirements. The platform screens qualified recycled raw‑material suppliers from the database or launches bidding according to your specifications. After sample validation, buyers confirm the preferred recycled material and supplier and sign the sales‑purchase contract.