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Current issue

ELEKTRO 7/2018 was released on June 27th 2018. Its digital version will be available on July 27th 2018.

Topic: Cables, conductors and cable engineering; Tools, equipment and accessories for work with cables

Main Article
Parametrization of circuit models of Li-accumulators for electromobility
Smart Cities (part 3 – volume 1)

SVĚTLO (Light) 3/2018 was released on June 15th 2018. Its digital version will be available on July 17th 2018.

Accessories of lighting installations
Evening with Foxtrot on the Czech heaven

Public lighting
Timeless luminaire for public lighting – Streetlight 11
Control of public lighting

New coatings make natural fabrics waterproof

02.07.2018 | MIT | web.mit.edu

Fabrics that resist water are essential for everything from rainwear to military tents, but conventional water-repellent coatings have been shown to persist in the environment and accumulate in our bodies, and so are likely to be phased out for safety reasons. That leaves a big gap to be filled if researchers can find safe substitutes.

Now, a team at MIT has come up with a promising solution: a coating that not only adds water-repellency to natural fabrics such as cotton and silk, but is also more effective than the existing coatings.

New waterproof coating

The coated materials have been subjected to repeated washings with no degradation of the coatings, and also have passed severe abrasion tests, with no damage to the coatings after 10,000 repetitions. Eventually, under severe abrasion, “the fiber will be damaged, but the coating won’t,” he says.

Read more at MIT

Image Credit: Varanasi and Gleason research groups

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