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DSM Engineering Plastics has introduced two new high-heat resins, Stanyl Diablo OCD2300 and Akulon Diablo injection and blow-moulding grades, designed for application in automotive weight-reduction.

The new materials facilitate system cost optimisations and productivity gains, long-term sustainability and reduced environmental impact.

Stanyl Diablo OCD2300 is an innovative high-heat Polyamide 46 (PA46) material, developed specifically to meet the need for long-term temperature resistance at elevated temperatures of up to 230C.

It joins the range of Stanyl Diablo grades that offer a key improvement in long-term thermal stability.

This technology, developed by DSM, extends the functional life of components well beyond the limits of other high-temperature polyamides.

By limiting thermal oxidative breakdown, Stanyl Diablo withstands more than 3,000 hours at aging temperatures of 230C before its tensile strength is less than half of its initial value and short-term temperatures of 260C.

Requirements for Under the Bonnet (UTB) applications are changing constantly.

Environmental requirements, Euro 5 and 6 legislation and the call for reduced fuel consumption have resulted in changes such as the use of smaller engines with higher turbo pressures and EGR (Exhaust Gas Recirculation).

In consequence, automobile UTB components such as air ducts, air intake manifolds and charge air cooler end-caps are exposed to continuously rising operating temperatures.

With increasingly critical temperature and tougher life time requirements, long-term service life of components made from current thermoplastics can be at risk.

Stanyl Diablo OCD2300 can withstand these temperatures while offering better mechanical properties than other high-performance polymers for these applications.

The material was tested, validated and released by a German OEM for use in application up to 230C CUT, where key applications include resonators, hot charge airducts and charge air cooler end-caps.

Stanyl materials are easy to process.

During injection moulding, tool temperatures of 80C and melt temperatures around 300C are normally used.

Short cycle times can be achieved to reduce system costs.

To complete its Diablo portfolio, DSM has also introduced Akulon Diablo, a high-heat PA material that bridges the gap between Akulon PA6 and PA46 Stanyl Diablo.

This high-performance grade of Akulon was developed specifically for use in air/fuel systems, which may be subject to temperatures of up to 210C continuous use, and even 230C over shorter periods.

DSM Engineering Plastics

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