Featured Research

from universities, journals, and other organizations

Polymers 'Battered' With Nanoparticles Could Create Self Healing Paints And Clever Packaging

Date:
December 4, 2008
Source:
University of Warwick
Summary:
Research chemists have devised an elegant process which simply and cheaply covers small particles of polymer with a layer of silica-based nanoparticles. The final result provides a highly versatile material that can be used to create a range of high performance materials such as: self healing paints, and clever packaging that can be tailored to let precise levels of water, air or both pass in a particular direction.

Research chemists at the University of Warwick have devised an elegant process which simply and cheaply covers small particles of polymer with a layer of silica-based nanoparticles.
Credit: Image courtesy of University of Warwick

Research chemists at the University of Warwick have devised an elegant process which simply and cheaply covers small particles of polymer with a layer of silica-based nanoparticles. The final result provides a highly versatile material that can be used to create a range of high performance materials such as: self healing paints, and clever packaging that can be tailored to let precise levels of water, air or both pass in a particular direction.

The research, led by Dr Stefan Bon of University of Warwick's Department of Chemistry, has created a “soap free emulsion polymerization process” which makes colloid particles of polymer dispersed in water and in one simple step introduces nanometre sized silica based particles to the mix. These silica based nanoparticles (about 25 nanometre in size) then coats the polymer colloids with a layer “battering” it almost like a fish can be battered in bread crumbs.

This process creates a very versatile polymer latex product. It can be used to create scratch resistant paints in which the scratches heal themselves. It can be fine tuned to produce polymer based packaging which will allow water or air to pass through the packaging in tailored ways. The resultant rough textured spherical shapes also lend themselves to the creation of sheets with polymer that present much more surface area than usual allowing more efficient interaction with other materials.

The versatility of this process did not stop there. By exposing the material to a second simple step which deposited another polymer layer on top of the already silica based nanoparticles “battered” polymers the researchers were able to produce particles with an even greater range of properties and uses. The image shows such a multi-layered polymer colloid and was taken with a transmission electron microscope.

Industrialists will be interested not just in the versatility of the end product but the ease and cost effectiveness of the process. The Warwick research team has worked on a number of other processes that coated polymers in forms of protection but they all required a number of steps to produce the end result. This new process cuts dramatically the time needed to create such materials and its single step can already be produced on a mass scale with currently used industrial equipment.

The amount of material that one can harvest from the process will also impress industrialists as the Warwick team showed that the useful product can easily be made up to around 45% of the volume of each water-based solution used in their process. This compares with figures of as of little as 1 to 10 % for comparable multi-step processes that make these complex particles.


Story Source:

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


Journal Reference:

  1. Colver et al. Multilayered Nanocomposite Polymer Colloids Using Emulsion Polymerization Stabilized by Solid Particles. Journal of the American Chemical Society, 2008; 081120083938001 DOI: 10.1021/ja807242k

Cite This Page:

University of Warwick. "Polymers 'Battered' With Nanoparticles Could Create Self Healing Paints And Clever Packaging." ScienceDaily. ScienceDaily, 4 December 2008. <www.sciencedaily.com/releases/2008/11/081124081152.htm>.
University of Warwick. (2008, December 4). Polymers 'Battered' With Nanoparticles Could Create Self Healing Paints And Clever Packaging. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2008/11/081124081152.htm
University of Warwick. "Polymers 'Battered' With Nanoparticles Could Create Self Healing Paints And Clever Packaging." ScienceDaily. www.sciencedaily.com/releases/2008/11/081124081152.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

Next Stop America for France's TGV?

Next Stop America for France's TGV?

Reuters - Business Video Online (Apr. 24, 2014) General Electric keeps quiet on reports it's in talks to buy French turbine and train maker Alstom. Ivor Bennett reports on what could be an embarrassing rumour for the French government, with business-friendly reforms proving a hard sell. Video provided by Reuters
Powered by NewsLook.com
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

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