Technyl Range Expanded with Heat-Resistant Polyamide 66
With Technyl REDx, Solvay SA, Brussels, Belgium, has developed a polyamide 66 (PA66) with a "smart" self-reinforcing molecular structure. The heat-resistant material is claimed to be suitable for manufacturing highly demanding heat management systems, particularly in the automotive industry. It consists of a "smart" macromolecule, including patented self-reinforcement in the polymer chain that does not affect its molecular structure. This chemical configuration remains inactive during the injection molding of vehicle parts, and the material behaves like a free-flowing PA66. It is only at the elevated temperatures during vehicle use that the molecular structure is activated, leading to rapid crosslinking and increasing the mechanical properties well above their initial values, according to the manufacturer.
The material can be processed at energy-saving mold temperatures of below 100 °C. According to the press release, aging tests for 3000 hours at 220 °C show a very high retention of properties and an increase in tensile strength of more than 50 % without affecting the elongation at break.
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