NYLON 11 (PA) — POLYAMIDE 11 Overview

Many types of nylon are commercially available. The most popular type is nylon 6/6, followed by nylon 6, then nylon 6/12, nylon 11 and nylon 12. Nylon 6/6 offers an excellent balance of properties and is the strongest of the nylons.
Nylon 6 has improved creep resistance over nylon 6/6 but has a lower modulus. Nylon 6 absorbs moisture more rapidly but has improved processability. Compared to Nylon 6/6 it can be molded about 80 degrees F (27 degrees C) lower with less mold shrinkage because it is slightly less crystalline.
Nylons absorb more moisture from the air than most other polymers. This has an effect on processability, dimensional stability and physical properties. Moisture acts as a plasticizer, reducing tensile strength and stiffness and increasing elongation. But, while absorbed moisture reduces many properties, nylon owes part of its toughness to the plasticizing effect of moisture.