Featured Research

from universities, journals, and other organizations

Renewable Furniture Finish Made From Sugars and Vegetable Oils

Date:
April 13, 2009
Source:
Fraunhofer-Gesellschaft
Summary:
How do you make a scratch-resistant varnish using sugars and vegetable oils? Researchers can show how it’s done: They have developed a furniture varnish containing roughly 50% renewable raw materials that offers the same hard-wearing quality as conventional varnishes.

When the petroleum runs out, renewable sources of raw materials will have to be found to replace petrochemical feedstocks. In the case of furniture varnishes, Fraunhofer researchers at the Institute for Wood Research, Wilhelm-Klauditz-Institut WKI in Braunschweig have already developed an alternative product in which the majority of petrochemical components have been substituted.

Related Articles


Their water-soluble furniture varnish is based on vegetable oils and sugars and has identical properties to the conventional varnishes on sale today. It is hard-wearing, scratch-proof and resistant to chemical attack.

“This varnish offers the coatings industry an attractive alternative to petrochemical products that is economical to produce and performs well in all tests,” reports Dr. Claudia Philipp of the Fraunhofer WKI. The new varnish is based on the chemical compound 1,3-propandiol, which is derived from glycerin. Glycerin in turn is the basic substance found in all vegetable oils, and is readily available as a byproduct of manufacturing processes for fatty acids and biodiesel, for example. In the laboratory synthesis, the researchers transform 1,3-propandiol into polyurethane, which serves as a binder in hard, transparent, scratch-resistant varnishes. “The aim is to use the relatively cheap 1,3-propandiol as a substitute for one of the more expensive petrochemical synthesis components, without altering the coating properties of the varnish,” explains Dr. Guido Hora, department head at the Fraunhofer WKI.

1,3-propandiol has not been considered a valuable raw material in the past, and rarely enters into the composition of varnishes. “Our first step was to conduct a detailed analysis of the relationship between the starting material and the properties of the final product,” Dr. Claudia Philipp relates. The outcome was that: “As the chemical structure of 1,3-propandiol led us to surmise, the new varnish is not only hard but also resilient.”

In other words, it doesn’t chip when a cup or other object is dropped onto a varnished table. A good varnish needs to be hard, but also capable of amortizing shocks to a certain extent, so as to prevent damage to the item of furniture beneath the coating. Another advantage of the new varnish is that it contains no N-methyl-2-pyrrolidon (NMP), a solvent once widely used in polyurethane coatings. This substance is meanwhile known to have a toxic effect on the growing embryo and is classed throughout the EU as a hazardous chemical requiring a warning symbol on all products containing a concentration higher than five percent.


Story Source:

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


Cite This Page:

Fraunhofer-Gesellschaft. "Renewable Furniture Finish Made From Sugars and Vegetable Oils." ScienceDaily. ScienceDaily, 13 April 2009. <www.sciencedaily.com/releases/2009/04/090408074357.htm>.
Fraunhofer-Gesellschaft. (2009, April 13). Renewable Furniture Finish Made From Sugars and Vegetable Oils. ScienceDaily. Retrieved March 28, 2015 from www.sciencedaily.com/releases/2009/04/090408074357.htm
Fraunhofer-Gesellschaft. "Renewable Furniture Finish Made From Sugars and Vegetable Oils." ScienceDaily. www.sciencedaily.com/releases/2009/04/090408074357.htm (accessed March 28, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, March 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Inspectors Found Faulty Work Before NYC Blast

Inspectors Found Faulty Work Before NYC Blast

AP (Mar. 27, 2015) An hour before an apparent gas explosion sent flames soaring and debris flying at a Manhattan apartment building, injuring 19 people, utility company inspectors decided the work being done there was faulty. (March 27) Video provided by AP
Powered by NewsLook.com
Facebook Building Plane-Sized Drones For Global Internet

Facebook Building Plane-Sized Drones For Global Internet

Newsy (Mar. 27, 2015) Facebook on Thursday revealed more details about its Internet-connected drone project. The drone is bigger than a 737, but lighter than a car. Video provided by Newsy
Powered by NewsLook.com
Robot Returns from International Space Station and Sets Two Guinness World Records

Robot Returns from International Space Station and Sets Two Guinness World Records

Reuters - Light News Video Online (Mar. 27, 2015) The companion robot "Kirobo" returns to earth from the International Space Station and sets two Guinness World Records. Sharon Reich reports. Video provided by Reuters
Powered by NewsLook.com
Residents Witness Building Explosion, Collapse

Residents Witness Building Explosion, Collapse

AP (Mar. 26, 2015) Witnesses recount the sites and sounds of a massive explosion and subsequent building collapse in the heart of Manhattan&apos;s trendy East Village on Thursday. (March 26) 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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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