Overview
PA6/17 is a copolymer combining polyamide 6 (PA6) and polyamide 17 (PA17), engineered to merge the mechanical strength of PA6 with the superior chemical resistance of PA17. This blend is particularly valued in industries requiring durability under harsh conditions, such as automotive and chemical processing. Unlike standard nylons, PA6/17 exhibits reduced moisture absorption (≤2.5%), minimizing dimensional instability in humid environments. Its balanced crystallinity ensures consistent performance across temperatures ranging from -40°C to 120°C.
Physical and Chemical Properties
The material’s density of 1.08–1.12 g/cm³ makes it lighter than metals while offering comparable wear resistance. Its melting point of 215–225°C allows for injection molding and extrusion processes without degradation. PA6/17 demonstrates exceptional resistance to hydrocarbons, alkalis, and weak acids, outperforming pure PA6 in aggressive chemical environments. The copolymer’s tensile strength (70–85 MPa) and elongation at break (15–30%) can be adjusted via the PA6/PA17 ratio during polymerization.
Main Applications
In automotive engineering, PA6/17 is used for fuel line components, radiator end tanks, and under-hood parts due to its heat and chemical stability. The industrial sector employs it for pump housings, valve seats, and conveyor components subject to abrasive wear. The material’s low friction coefficient (μ≈0.2–0.3) makes it suitable for bearings and sliding parts. Recent innovations include glass-fiber reinforced variants (PA6/17-GF30) for structural applications requiring higher rigidity.
Safety and Storage
While PA6/17 is generally safe to handle, thermal processing above 300°C may release caprolactam vapors—adequate ventilation is mandatory. Store in moisture-proof packaging to prevent premature hydrolysis, which could reduce molecular weight. Regulatory compliance includes FDA 21 CFR 177.1500 for food contact applications and RoHS/REACH certifications for electronics uses. Bulk storage should avoid direct sunlight to prevent UV-induced degradation over time.
B2B Procurement Guide
Key specifications to request include the PA6/17 ratio (common: 70/30 or 50/50), additive packages (e.g., UV stabilizers), and post-processing requirements. For critical applications, demand batch-specific technical data sheets (TDS) with test reports. Leading suppliers include BASF, DSM, and domestic specialized polymer producers. MOQs typically start at 1 metric ton, with pricing tiers for 5+ ton orders. Sample availability varies by manufacturer—expect lead times of 4–6 weeks for custom formulations.
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