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[SITUATION] · [QUIET] · [TECHNOLOGY]
2 clusters · 5 sources · 6 days · First seen · Last updated
Raindrop electrification and surface corrosion research
Overview
Researchers have identified a phenomenon called “slide electrification” where raindrops carry significant electrical charges that can damage surfaces. Studies conducted by the Max Planck Institute for Polymer Research and published in Nature indicate that as water droplets move across surfaces such as glass, plastic, or leaves, they can accumulate voltages as high as 9,000 volts.
When these highly charged droplets land on insulated materials, they can cause high-voltage discharges. Experimental testing on copper plates coated with Teflon—a highly chemically resistant material—demonstrated that these discharges can degrade protective coatings and lead to the corrosion of the underlying metal. This discovery suggests that current corrosion prevention methods, which typically focus on chemical and physical resistance, may need to address electrical discharge risks to protect surfaces like car paint and buildings.
Entities
Max Planck Institute for Polymer Research · Nature · Ars Technica · Rüdiger Berger · Zhongyuan Ni
Claims
What the coverage asserts, and how many sources carry each claim.
- [○ 1 SOURCE] Raindrops can contribute to vehicle paint corrosion through electrical discharge. www.jalopnik.com
- [○ 1 SOURCE] Water droplets can collect charges of up to 9,000 volts via sliding electrification. www.jalopnik.com
- [○ 1 SOURCE] Sliding electrification occurs when a droplet moves across an insulated surface and exchanges charges. www.jalopnik.com
Timeline
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9 days ago
[TECHNOLOGY] 3 sourcesRaindrops can cause high-voltage discharges that damage car paintA new study reveals that raindrops can accumulate up to 9,000 volts through sliding electrification, potentially causing electrical discharges that damage car paint and contribute to corrosion.
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14 days ago
[TECHNOLOGY] 2 sourcesMax Planck researchers find charged raindrops corrode surfacesA study from the Max Planck Institute reveals that electrically charged raindrops can punch through protective coatings, causing unexpected corrosion to buildings, cars, and other surfaces.
Sources
arstechnica.com · cosmobc.com · it.slashdot.org · jalopnik.com · lifestyledaily.co.uk