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Polypropylene has been used in washing
machines for over two decades, though it has not yet received wide
acceptance in the interiors of dishwashers. Of course, PP has been
used in the US in dishwashers as door liners and interior walls.
But the European dishwasher manufacturers have not yet adopted PP
in application for dishwasher parts.
Recent developments in PP grades, with better properties
will now widen the scope and usage of PP in dishwashers. Borealis
has recently conducted co-operative development with Bosch-Siemens
using talc modified PP composite. Infact, Borealis has developed
a new grade that has twice the impact of a conventional 30% talc
filled PP compound. Besides, it is designed to provide better scratch
resistance. This grade is specially stabilized to withstand hot
water (75ºC) along with the aggressive environment of detergents
etc. without affecting stiffness-impact balance. As a result of
these developments, Bosch-Siemen plans to introduce complete tub
floors for dishwashers, weighing more than 3.5 kgs in the next couple
of years.
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