Featured Research

from universities, journals, and other organizations

New paints prevent fouling of ships' hulls

Date:
June 25, 2012
Source:
University of Gothenburg
Summary:
The colonization of hulls by algae, barnacles, mussels and other organisms is a major problem for both pleasure boats and merchant tonnage. Researchers have now developed new environmentally-friendly and effective bottom paints to prevent this.

The larva of a barnacle.
Credit: Image courtesy of University of Gothenburg

The colonisation of hulls by algae, barnacles, mussels and other organisms is a major problem for both pleasure boats and merchant tonnage. In a joint project, researchers at the University of Gothenburg and Chalmers University of Technology, Sweden, have developed new environmentally-friendly and effective bottom paints to prevent this.

Fouling is a major problem, leading to higher fuel consumption and so increased air pollution. It can also cause the spread of alien species that do not belong in the local marine environment.

Effective biocides found

Researchers at the University of Gothenburg and Chalmers University of Technology have spent nine years developing new environmentally-friendly and effective antifouling paints through a joint research programme called Marine Paint.

The focus has been on a substance called medetomidine, which has proved highly effective against barnacles, considered to be the most problematic fouling organism.

To tackle other types of fouling as well (such as algae, mussels, sea squirts and moss animals), the researchers have developed a concept for producing optimised combinations of different antifouling agents, or biocides.

The idea behind these optimised blends is to combine many different biocides that are effective against different fouling organisms, and adjust the balance between them to eliminate all types of fouling.

To produce the recipes for these optimised blends, the researchers have also developed a model system where they weigh the effect of different biocides on different fouling organisms against their expected environmental risk. The blends are all equally effective but offer different levels of expected environmental risk.

Hi-tech paints

These optimised blends have been combined with hi-tech paint systems based on microcapsules -- microscopic capsules made out of a polymer material which slowly release the biocides from the paint into the water.

Field trials of painted test panels at the Sven Lov้n Centre for Marine Sciences in Kristineberg have shown that the concept of optimised antifouling blends in bottom paints works very well.

Marine Paint's research results for medetomidine have been passed to the commercial partner I-Tech AB to ensure that they are put into practice, and the product is now being marketed under the name Selektope.

Marine Paint has been hosting a conference in Gothenburg on 14-15 May 2012 and presentED its results and placeD them in a wider context, with speakers and participants representing universities, colleges, industry, authorities, shipping companies, leisure boat owners and other interested parties, primarily from Sweden and Europe.

The Marine Paint research programme was funded by the Mistra Foundation for Strategic Environmental Research from 2003 to 2011.


Story Source:

The above story is based on materials provided by University of Gothenburg. Note: Materials may be edited for content and length.


Cite This Page:

University of Gothenburg. "New paints prevent fouling of ships' hulls." ScienceDaily. ScienceDaily, 25 June 2012. <www.sciencedaily.com/releases/2012/06/120625064735.htm>.
University of Gothenburg. (2012, June 25). New paints prevent fouling of ships' hulls. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2012/06/120625064735.htm
University of Gothenburg. "New paints prevent fouling of ships' hulls." ScienceDaily. www.sciencedaily.com/releases/2012/06/120625064735.htm (accessed April 24, 2014).

Share This



More Matter & Energy News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Obama Plays Soccer With Japanese Robot

Raw: Obama Plays Soccer With Japanese Robot

AP (Apr. 24, 2014) — President Obama briefly played soccer with a robot during his visit to Japan on Thursday. The President has been emphasizing technology along with security concerns during his visit. (April 24) Video provided by AP
Powered by NewsLook.com
Obama Encourages Japanese Student-Scientists

Obama Encourages Japanese Student-Scientists

AP (Apr. 24, 2014) — President Obama spoke with student innovators in Japan and urged them to take part in increased opportunities for student exchanges with the US. (April 24) Video provided by AP
Powered by NewsLook.com
UN Joint Mission Starts Removing Landmines in Cyprus

UN Joint Mission Starts Removing Landmines in Cyprus

AFP (Apr. 23, 2014) — The UN mission in Cyprus (UNFICYP) led a mine clearance demonstration on Wednesday in the UN-controlled buffer zone where demining operations are being conducted near the Cypriot village of Mammari. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Air Force: $4.2B Saved from Grounding A-10s

Air Force: $4.2B Saved from Grounding A-10s

AP (Apr. 23, 2014) — Speaking about the future of the United States Air Force, Chief of Staff Gen. Mark Welsh says the choice to divest the A-10 fleet was logical and least impactful. (April 23) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins