Magnetic lightweight composite based on Cellulose

Profil Titel	Magnetic lightweight composite based on Cellulose
Referenz	09 SE 67BY 3FTD
Herkunftsland	Sweden
Kooperationsart	Angebot
Eintrag/Änderung	2009-12-14 / 2010-11-12
Status	Dieses Profil ist abgelaufen! Falls Sie denoch Interesse haben, kontaktieren Sie uns. (2011-10-24)

Kurzfassung

A Swedish research SME has developed a magnetic lightweight composite material based on cellulose. The new cellulose material with a network of cellulose nanofibers as scaffold for magnetic nanoparticle can be used for the production of new functional nano-materials. The company is looking for partners who are interested in further development of this concept and in license of the technology.

Details

Magnetic cellulose is obtained by precipitation of metal salts onto a cellulose template. The cellulose source can originate from bacterial cellulose, in the form of a hydrogel or aerogel, or microfibrillated cellulose (MFC).

It is possible to compress gels to films to form a more dense material. The particles are physically attached to the cellulose nanofibers and evenly distributed.

Picture 1: A sample of the composite material attached to a magnet.
Picture 2: SEM picture showing the cellulose network with evenly distributed magnetic particles.

Innovative Aspects:
It is known that magnetic particles tend to agglomerate during and after formation, and especially when dried. With this approach the company has overcome this problem and provided an agglomerate free magnetic nanoparticle material with high mechanical properties.