Abstract Scope |
Nylon is commonly used in many industries, ranging from construction to clothing. Most common nylons are even-numbered and petroleum-based, but odd-numbered nylons may offer unique properties. Nylon 5,9 is a particularly interesting odd-numbered nylon because both molecules can be biobased, while nylon 6,6 is entirely petroleum-based, and nylon 6,10 can be partially bio-based. Being bio-based means 5,9 offers a sustainability edge over 6,10 and 6,6 while showing unique properties suitable for new applications. This research found that 5,9 performed similarly to 6,6 and 6,10 in elastic modulus and yield strength, with higher toughness. Additionally, 5,9 shows lower melting and crystallization temperatures than 6,6 and 6,10, allowing for lower processing temperatures. Finally, 5,9 shows a higher threshold for thermal degradation, improved by 25°C over 6,6, creating a larger window for synthesis and processing without risking degradation. |