MATERIALS | PPS COMPOUNDS


Right: Automotive crankcase ventilation tubes extruded in Fortron flexible PPS reduced weight and assembly costs for a major OEM


fibre reinforced PPS, Celanese says. Toray, which is the biggest


injection moulding cycle time,” the company says. Fortron PPS ICE is also used to replace metal in water faucet and


water meter applications. Shock performance


Celanese has also developed PPS grades


offering improved resistance to thermal shock, with over-moulding for automotive sensors a key target application. It explains that one of the challenges for such parts is that metal and plastics have different coefficients of thermal expansion and that the stress caused by thousands of cycles of heating and cooling could potentially lead to mechanical failures over time. Fortron toughened PPS with improved thermal shock resistance can withstand extreme temperature changes (-40 to 150°C) over long-term use and can outperform traditional glass


producer of PPS globally, has also recently developed a product to withstand thermal cycling in plastic/metal over-moulded parts – Torelina A675GS1B. The company has two polymer plants – one in Japan and one in Korea – with a total capacity of 27,600 tonnes/yr and no fewer than eight PPS compounding operations – six in Asia, one in Europe and one in the USA (which went into operation late last year) – with a combined capacity of 43,600 tonnes/yr. It is also the only company worldwide that spans the complete production chain, from monomers through crosslinked and linear polymer (branded Torelina) to film, stock shapes and fibres. Last April, Japan’s Tosoh said it too had devel- oped a PPS compound featuring enhanced thermal shock resistance, claiming an 80% improvement over current industry-standard products. It says the new grade features improved weld strength and flow and can be expected to contribute to further reductions in the weight of automobiles through thin-walling. Tosoh is currently considering mass production of the new compound.


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Networking Party Rock & Roll Hall of Fame


DON’T MISS OUT TICKETS SELLING FAST!


Have fun with your new business contacts at the ultimate networking party on May 8, 2019 at the Rock & Roll Hall of Fame.


The party ticket is $20 per person and will give you full access to this iconic venue with drinks and canapes. Doors open at 7pm.


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