DSM develops new high temperature resistant Arnitel TPE

DSM develops new high temperature resistant Arnitel TPE

12:21 PM, 21st June 2016
DSM develops new high temperature resistant Arnitel TPE
Although automotive and industrial hoses and tubing vary widely, ranging from vacuum brake tubing and pneumatic tubing to hydraulic hoses, they have something in common – they all can benefit from TPC.

SINGAPORE: DSM said it has developed a new high temperature resistant grade of its Arnitel thermoplastic co-polyester elastomer (TPC) for production of flexible hot charge air ducts used in turbocharged engines.

Arnitel HT will allow system suppliers to produce the ducts in a single material and using a single process step. The current standard practice is to assemble separate elements in hard thermoplastics or metal and soft thermosetting rubbers, which need to be produced in diverse operations. Switching to Arnitel HT will provide producers with a significant improvement in process efficiency, cost reductions of up to 50 percent and weight reduction of up to 40 percent. 

Arnitel HT has the ability to withstand continuous operating temperatures of up to 180°C and peaks of up to 190°C, it has high temperature resistance unequalled among thermoplastic elastomers. Arnitel HT also has good resistance to the sorts of oils and chemicals found in automobile engine environments.

Critically, Arnitel HT’s combination of elasticity with high mechanical strength means that it can be used to produce the entire duct in a single piece, using 3D suction blow moulding. Wall thicknesses can be approximately halved.

“Ducts produced in Arnitel HT can withstand the internal operating pressures which are demanded by car producers, not only for models in production today but also for upcoming generations,” said Kurt Maschke, global segment manager Air/Fuel at DSM. “And by using a single solution based on a material with excellent mechanical performance and a relatively low density in an optimized design, it is possible to obtain weight savings of as much as 40 percent.”

One of the first producers of hot charge air ducts to take advantage of this new innovation is CIKAUTXO, headquartered in Spain, which has capability in production of rubber components and also in plastics blow moulding and injection moulding. The company worked together with DSM on the development of the first part in Arnitel HT, and exchanged valuable information for improvements in the material, processing, and part validation.

“We believe that Arnitel HT will enable us to make important cost reductions and increase consistency and reliability in our production of high performance ducts,” said Dr Gurmendi at CIKAUTXO. “Our new ability to make better optimized parts in a single step provides us with a tangible advantage in the market.”

© Worldofchemicals News

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