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Norcross, GA, United States

Walker C.,TAPPI
Coating International

The combination of nanotechnology and renewable materials offered a potentially significant commercial opportunity for the forest products industry. These facts were revealed by experts at the 2013 TAPPI International Conference on Nanotechnology for Renewable Materials, held in Stockholm, Sweden in June 2013. Katja Salmenkivi, Principal, Pöyry Management Consulting, presented recent trends in patents on cellulose nanomaterials and the players active in the field. He revealed that a recent analysis found that patents issued for cellulose nanomaterials had increased significantly over the years. Applications patents covered a wide range, with composites and paper coating accounting for the greatest percentage. Martha Marrapese, Partner with Keller&Heckman, provided key considerations for successful technology transfer for cellulose nanomaterials, including time and cost to commercialize. Source

Toyofuku K.,TAPPI
International Paperworld IPW

The existing condition and challenges facing the Japanese paper industry are discussed. The industry needs to develop internationally competitive products and satisfy those Japanese customers who demand for a specific quality. It needs to overcome challenges, such as an overseas production, the use of technologies enabling high quality and high efficiency, securing of fiber sources, and efforts for environment conservation to overcome these challenges. The industry also needs technological expertise that will enhance its international competitiveness. The industry has increased the use of recycled pulp for cost saving and protecting the environment. Efforts have also been made in a fine paper category to produce bulkier paper so that the fiber amount is decreased and the sheet thickness kept up. Source

Walker C.,TAPPI

Nanotechnology is being considered as a game-changer in the pulp and paper industry. While there are a lot of nanomaterials, the one most relevant to the paper and pulp industry is nanocrystalline cellulose, a renewable, recyclable, and abundant nanomaterial made of cellulose fibers from the pulp manufacturing process. Nanocellulose also has a very high elastic modulus making it extremely stiff, ten times the high tensile strength of steel, and a thermal expansion 100 times lower than steel. Scaling Up Nanoparticles in Modern Paper Making (SUNPAP) is a project funded by the European Community's 7th Framework Program under the NMP program. Researchers have examined using cellulose nanomaterials at the wet end of the paper machine to improve strength properties, as well as replacing synthetic binders in paper coatings. ArboraNano collaborates with the industry to introduce forest nanomaterials into new products and markets. A number of organizations are working towards identifying what nanotechnology can offer. Source

Moon R.,Purdue University | Walker C.,TAPPI

A host of international research organizations are hot on the trails of new applications and products that can be made from cellulose nanomaterials. Since 2004, the FS-FPL has been expanding its research programs and building collaborative efforts with universities and industry in cellulose nanomaterials. This has led to the recent opening of the CelluForce demonstration plant with an nanocrystalline cellulose (NCC) production capacity of one ton per day. At the Adolphe Merkle Institute at the University of Fribourg, Professor Christoph Weder's research team is focused on the design, synthesis, and investigation of structure-property relationships of novel functional polymers. The non-covalent interactions between the percolating cellulose fibers can be mediated by chemical and other stimuli. Professor Hiroyuki at Kyoto University's Research Institute for Sustainable Humanoshphere has been studying extraction of nanocellulose from wood and other biomaterials using grinding, high-speed blending, and twin-screw extrusion. Source

Walker C.,TAPPI | Lyons T.,Imerys
Coating International

The International Conference 2011 on Nanotechnology for Renewable Materials was conducted by the Technical Association of the Pulp and Paper Industry (TAPPI). One of the conference focus areas was the application of nanotechnology based upon renewable materials to paper coatings and cellulose-based composites. Several presentations focused on the frontiers of the use of renewable and superabundant materials that can potentially replace petroleum-based polymers. Niharika Mishra (Penn State University, USA) presented results on the use of renewable materials such as chitosan (CS) and carboxymethyl cellulose (CMC) to improve barrier properties. Jenni Sievänen (VTT Technical Research Centre of Finland) reported on results from producing composites made from minerals (kaolin or precipitated calcium carbonate, >50% by weight) and nanofibrillated cellulose. These composite sheets remained flexible, even with filler content above 80%, and had a smooth surface after calendering. Source

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