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American Chemical Society's Weekly PressPac -- June 4, 2008


"Super paper:" New nanopaper more break-resistant than cast iron

Researchers in Sweden and Japan report development of a new type of paper that resists breaking when pulled almost as well as cast iron. The new material, called "cellulose nanopaper," is made of sub-microscopic particles of cellulose and may open the way for expanded use of paper as a construction material and in other applications, they suggest. Their study is scheduled for the June 9 issue of ACS' Biomacromolecules, a monthly journal.

In the new study, Lars A. Berglund and colleagues note that cellulose a tough, widely available substance obtained from plants has potential as a strong, lightweight ingredient in composites and other materials in a wide range of products. Although cellulose-based composites have high strength, existing materials are brittle and snap easily when pulled.

The study described a solution to this problem. It involves exposing wood pulp to certain chemicals to produce cellulose nanopaper. Their study found that its tensile strength a material's ability to resist pull before snapping exceeded that of cast iron. They also were able to adjust the paper's strength by changing its internal structure. MTS

ARTICLE #1 FOR IMMEDIATE RELEASE "Cellulose Nanopaper Structures of High Toughness"


Lars A. Berglund, Ph.D.
Royal Institute of Technology
Stockholm, Sweden
Phone: 46-8-7908118
Fax: 46-8-7908101


Love that garlic? Fresh may be healthier than bottled
Journal of Agricultural and Food Chemistry

The next time you use garlic for its renowned anti

Contact: Michael Woods
American Chemical Society

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