Featured Research

from universities, journals, and other organizations

Polymer Coatings Stick On Optical Glass Surface

Date:
July 4, 2001
Source:
Penn State
Summary:
Polymers do not usually adhere to glass nor does much of anything else, but combining glass and polymer to create composite materials is possible if an intermediary polymer coupling agent can be used as a go-between, according to Penn State material scientists.

Edinburgh, Scotland – Polymers do not usually adhere to glass nor does much of anything else, but combining glass and polymer to create composite materials is possible if an intermediary polymer coupling agent can be used as a go-between, according to Penn State material scientists.

"Aminopropyltrethoxysilane (APS) is the most common silane coupling agent used to coat common silicate glasses, so that is the coupling agent we looked at," says Amy Barnes, Ph.D. candidate in materials science and engineering. "Very little is known about coupling agents for phosphate glasses or the surface of these glasses."

Barnes; Dr. Carlo G. Pantano, director of Penn State's Materials Research Institute and distinguished professor of materials science and engineering; and Dr. Samuel D. Conzone of Schott Glass Technologies looked at sodium aluminophosphate glass. These glasses, doped with rare earth elements such as erbium and ytterbium, are used in optical and photonic systems, as laser sources and as wave guide amplifiers.

"Very little is currently known about the surface of phosphate glasses because, traditionally, the glass quickly reacts with the atmosphere," says Barnes. " It is only in recent years that there have been advances in making this glass more durable."

The researchers studied the phosphate glass without the rare earth elements, to see how the silane adhered to the surface of the phosphate glass. The glass was dipped in APS and rinsed. "We have shown that we can get silane to adhere to phosphate glass surfaces," Barnes told attendees today (July 2) at the 19th International Congress on Glass, sponsored by the Society for Glass Technology in Edinburgh, Scotland.

"The coating can protect the surface, minimizing corrosion or can be a mediator between the glass and a polymer." The silane forms a single or multiple molecular layers on the glass surface. The acidity of the silane solution affects the coverage of the surface differently than on traditional silicate glasses. Also, the stability of the bond that forms may be different if the surface corrodes during coating.

"Applications to join two phosphate glasses, phosphate glass and polymers, or phosphate glass and other organic chemicals are just beginning," says Barnes. "With a silane coating, these glasses can be used as hybrids rather than stand alone materials. We can connect and combine them with dissimilar materials."


Story Source:

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


Cite This Page:

Penn State. "Polymer Coatings Stick On Optical Glass Surface." ScienceDaily. ScienceDaily, 4 July 2001. <www.sciencedaily.com/releases/2001/07/010704093233.htm>.
Penn State. (2001, July 4). Polymer Coatings Stick On Optical Glass Surface. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2001/07/010704093233.htm
Penn State. "Polymer Coatings Stick On Optical Glass Surface." ScienceDaily. www.sciencedaily.com/releases/2001/07/010704093233.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
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