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'Super Paper:' New Nanopaper More Break-resistant Than Cast Iron

Date:
June 10, 2008
Source:
American Chemical Society
Summary:
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.

Scientists report development of cellulose nanopaper, a superstrong material that could be used in the construction industry. Above is a cross-section of a fracture surface of a cellulose nanofibril film.
Credit: Courtesy of American Chemical Society

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.

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.


Story Source:

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


Journal Reference:

  1. Henriksson et al. Cellulose Nanopaper Structures of High Toughness. Biomacromolecules, 2008; 9 (6): 1579 DOI: 10.1021/bm800038n

Cite This Page:

American Chemical Society. "'Super Paper:' New Nanopaper More Break-resistant Than Cast Iron." ScienceDaily. ScienceDaily, 10 June 2008. <www.sciencedaily.com/releases/2008/06/080609090706.htm>.
American Chemical Society. (2008, June 10). 'Super Paper:' New Nanopaper More Break-resistant Than Cast Iron. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2008/06/080609090706.htm
American Chemical Society. "'Super Paper:' New Nanopaper More Break-resistant Than Cast Iron." ScienceDaily. www.sciencedaily.com/releases/2008/06/080609090706.htm (accessed July 24, 2014).

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