Cellutech is a company focused on developing and commercializing new materials from trees and other plants. A close collaboration with the scientists at the Wallenberg Wood Science Center (WWSC, Sweden) forms the basis of our innovations. Cellutech offers technologies for preparation of nanocellulose foams and hollow cellulose spheres, see below, but also offers technologies in areas such as magnetic composite materials, superhydrophobic surfaces and polymers for cellulose fiber modification.  A cellulose foam material has been prepared by drying aqueous foams stabilized with surface modified NanoFibrillated Cellulose (NFC). The stability of the wet foams can be attributed to the octylamine-coated NFC nanoparticles residing at the air-liquid interface preventing the air bubbles to collapse or coalesce. The wet NFC-stabilized foam can be dried in a conventional oven resulting in a porous, lightweight cellulose material with very good mechanical properties in relation to its weight. The dry cellulose foam material could be used for applications such as insulation, packaging and absorption material.  Hollow cellulose spheres can be prepared with porous or solid shells depending on the application. The hollow spheres, with a size in the range 50 �m to 4 mm, can be filled with in principle any liquid or gas. Spheres with porous shells can release a desired compound through the shells and gas filled spheres with solid shells can be used as filling or packing material.

Novel cellulose-based materials

247th National Meeting (2014)

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