Daily Mail

Is this the end of ice scrape misery?

- By Colin Fernandez Science Correspond­ent

SCRAPING the ice from car windscreen­s is one of the curses of winter.

But it could soon be a thing of the past with new technology that reduces the build-up of ice by 90 per cent without heat or chemicals.

The technology could also be used on aircraft wings, reducing delays that occur when they freeze up, and roads.

It is being developed at Virginia Tech in the US and while it is currently being applied to aluminium, scientists say it could work with any surface.

The new surface contains a microscopi­c array of elevated grooves where small lines of ice form.

These strips of ice create low pressure in surroundin­g grooves, helping keep overlappin­g areas free of frost. The ice strips make up 10 per cent of the material’s surface, with the remaining 90 per cent dry.

Scientists say ‘the material you use could be virtually anything’.

Farzad Ahmadi, a doctoral student at Virginia Tech, said: ‘Frosting is a big issue and researcher­s have been working to solve this problem for years. Traditiona­l approaches have relied on the applicatio­n of antifreeze chemicals or energy inputs like heat.

‘Even the age-old method of throwing salt down on roadways is essentiall­y a chemical treatment.’

Other coatings for surfaces that prevent frost formation have been developed but these tend to wear off easily. The research is published in the journal ACS Applied Materials & Interfaces.

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