Baekeland (Xiamen) Modified PPA (Polyphthalamide) resin is an advanced semi-aromatic polyamide engineered for high-temperature resistance, excellent mechanical strength, and chemical durability. This makes it ideal for critical applications in automotive under-the-hood components, electrical connectors, and industrial mechanical parts where extreme performance is demanded.

Key Features

High Thermal Stability — Continuous use temperature up to 180–220°C, with excellent heat aging resistance.

Excellent Mechanical Properties — High tensile strength, stiffness, and impact resistance, especially when reinforced with glass fiber.

Chemical Resistance — Outstanding resistance to fuels, oils, solvents, and hydrolysis.

Flame Retardancy — Available flame-retardant grades meeting UL94 V-0 standards.

Dimensional Stability — Low moisture absorption compared to conventional PA6/PA66, reducing warpage and maintaining tight tolerances.

Good Processability — Suitable for injection molding and extrusion with consistent quality.

Typical Applications

Automotive: Fuel system components, air intake manifolds, engine covers, connectors

Electrical/Electronics: High-performance connectors, switches, housings

Industrial: Pump components, valve parts, mechanical gears

Flame-Retardant Applications: Electrical enclosures, safety parts requiring fire resistance

Q1: What are the main advantages of modified PPA compared to standard PA6/PA66?

A: Modified PPA offers higher continuous-use temperatures, better chemical resistance, and lower moisture absorption, making it suitable for more demanding applications.

Q2: Is this PPA suitable for automotive under-the-hood applications?

A: Yes, especially the glass fiber reinforced grades provide excellent thermal and mechanical properties ideal for under-the-hood parts.

Q3: Can PPA grades be processed by injection molding?

A: Yes, all grades are optimized for injection molding with good flow and stable processing characteristics.

Q4: Are flame retardant grades available?

A: Yes, we provide UL94 V-0 certified flame retardant PPA grades for electrical and safety-critical applications.

Q5: What is the typical moisture absorption of modified PPA?

A: Modified PPA generally absorbs less than 0.5% moisture in 24 hours, much lower than standard nylons, which helps maintain dimensional stability.