Sabic has developed a new resin for automotive applications that it says copes better with humidity than PA material.
Noryl GTX 9500 resin has improved dimensional stability under hot and humid conditions, the company said. It can also reportedly retain dimensional stability and mechanical properties under a wider range of temperatures and humidity.
According to Sabic, polyamide (PA) resins have a tendency to absorb moisture and water, exacerbated by elevated temperatures. This can cause softening, loss of stiffness and warpage. NORYL GTX 9500 resin offers lower water and moisture uptake than PA, under high heat conditions, up to 150°C. In in-house testing, the company said that that Noryl GTX 9500 resin absorbed 21% less moisture at equilibrium than PA66, and 58% less than PA6. Noryl GTX 9500 resin had a total dimensional change (flow direction and crossflow direction) at equilibrium of 0.29%, while PA66 has a total change of 84% and PA6 had a total change of 165% higher than Noryl GTX 9500 resin.
Noryl GTX 9500 resins can be used as the base resin in carbon fiber-reinforced thermoplastic composites used in structural and body components, and for applications in the industrial, aerospace and marine markets.
This story uses material from Sabic, with editorial changes made by Materials Today.
