Two new heat stabilisers within additive portfolio for polyamides
Speciality chemicals company Brüggemann (Heilbronn / Germany; has expanded its “Bruggolen” additive portfolio for polyamides by adding two antioxidant blends – “TP-H1607” and “TP-H1805”. Both stabilisers are supplied in pellet form for easy dosing and dispersing during compounding.

TP-H1607 is a proprietary copper-based stabiliser that extends long-term mechanical property retention of polyamides to limits unmatched by existing classic copper salt-based antioxidants, according to Brüggemann. The new additive enables heat stabilisation of unreinforced PA 6.6 beyond 5,000 hours at 150°C, outperforming conventional copper salt-based stabilisers which level off at 3,000 hours at this temperature. It helps reduce copper and halogen content and is suited for E&E applications such as switch housings and sensors.

TP-H1805 is a stabiliser that extends the limit for continuous-use temperatures – up to 200°C in the case of glass-reinforced PA 6 and beyond 200°C for PA 6.6. TP-H1805 is also effective at temperatures below 200°C. The German company says compounders can then produce cost-efficient aliphatic PA-based materials for applications previously reserved for high-performance polymers such as polyphthalamide (PPA) and polyphenylene sulphide (PPS), and the new additive could offer the opportunity to substitute PA 6.6 for less expensive PA 6 in certain applications.
10.07.2020 [245494-0]
Published on 10.07.2020
Brüggemann: Hitzestabilisator auf Kupferbasis für PolyamideGerman version of this article...

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