Subscribe free to our newsletters via your
. 24/7 Space News .




TECH SPACE
Date palm juice: A potential new 'green' anti-corrosion agent for aerospace industry
by Staff Writers
Washington DC (SPX) Sep 27, 2012


Date palm juice inhibited corrosion of an aluminum alloy called AA7075, used in aerospace and other applications, in a salt solution.

The search for a "greener" way to prevent corrosion on the kind of aluminum used in jetliners, cars and other products has led scientists to an unlikely source, according to a report in ACS' journal Industrial and Engineering Chemistry Research.

It's the juice of the date palm - those tall, majestic trees that, until now, were noted mainly as sources of food and traditional medicines.

Husnu Gerengi points out that strong, lightweight aluminum alloys are used to make planes, cars and industrial equipment. Aluminum corrodes when exposed to air, but unlike rusting steel, the corrosion of aluminum's surface layer forms a protective film that prevents degradation of the underlying metal.

However, that film breaks down in some harsh environments, like seawater, leaving the metal vulnerable. Engineers have developed coatings to protect aluminum in these applications, but many of these use potentially toxic chemicals. Previous research suggested that extracts of date palm leaves had an anti-corrosion effect.

Gerengi decided to check date palm juice.

He found that date palm juice inhibited corrosion of an aluminum alloy called AA7075, used in aerospace and other applications, in a salt solution. Gerengi noted that while an extract from date palm leaves is a known anticorrosive, this was the first test of the fruit's juice.

The juice, which he reported adsorbed into the aluminum's surface, contains a number of sugars.

Gerengi posited that these react with aluminum to form an anticorrosive film on the metal's surface.

.


Related Links
American Chemical Society
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
New California Law Boosts Sustainable Materials Industry
Sacramento CA (SPX) Sep 26, 2012
California Governor Jerry Brown signed into law on Friday Assembly Bill 2205, which clears the way for a new, revolutionary materials industry in California. AB 2205, authored by Assembly Member V. Manuel Perez (D-Coachella) and co-authored by Senate Majority Leader Ellen Corbett (D-San Leandro), brings state regulation up to speed with innovative new technology to sustainably produce lithium, m ... read more


TECH SPACE
China has no timetable for manned moon landing

Senior scientist discusses China's lunar orbiter challenges

NASA sees 'gateway' for space missions

Protection for Moon, Mars astronauts eyed

TECH SPACE
A windshield wiper for Mars dust

Curiosity Finishes Close Inspection of Rock Target

Where is Deimos?

Professor says NASA's Martian weather reports show extreme pressure swings

TECH SPACE
B612 Wins Funding Support From Prominent Business Leadersy

Cavenauts return to Earth

Brazil unveils tax incentives to boost tech innovation

New Technology Being Stymied by Copyright Law

TECH SPACE
China Spacesat gets 18-million-USD gov't support

Tiangong Orbit Change Signals Likely Date for Shenzhou 10

China Focus: Timeline for China's space research revealed

China eyes next lunar landing as US scales back

TECH SPACE
Russia to send all-novice crew to ISS

ATV undocking postponed

Crew Members Prepare for Departure

ISS Crew Lands Safely in Kazakhstan

TECH SPACE
California Governor Signs the Spaceflight Liability and Immunity Act

Processing is underway with the next Automated Transfer Vehicle to be orbited by Arianespace

Fueling underway with the Galileo satellites for next Soyuz launch from French Guiana

SpaceX, NASA Target Oct. 7 Launch For Resupply Mission To Space Station

TECH SPACE
Meteors Might Add Methane to Exoplanet Atmospheres

Two 'hot Jupiters' found in star cluster: NASA

Planets Can Form in the Galactic Center

Birth of a planet

TECH SPACE
Pigs' revenge as 'Angry Birds' makers launch new game

Basing of first US Space Fence facility announced

US Bank admits 'attacks,' says customer data safe

Date palm juice: A potential new 'green' anti-corrosion agent for aerospace industry




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement