Novel Applications of Viscoplastic Fluids: Creating New Products for the Pulp and Paper Sector

自然资源的收获是加拿大经济繁荣的支柱。没有可行的纸浆和造纸工业，就不可能有可行的林业。传统上，卑诗省和加拿大的纸浆和造纸部门一直是美国市场的新闻纸出口国。最近的经济衰退，再加上无纸通信的颠覆性技术，导致新闻纸和通信用纸的消费量减少了40%。这一转折点意味着森林工业的生存取决于加拿大开发高质量BC木材纤维的创新新用途的能力。

The harvest of natural resources is the backbone of the thriving Canadian economy. Without a viable pulp and paper industry it is not possible to have a viable forestry industry. Traditionally, BC and Canada’s pulp and paper sector has been a newsprint exporter to the US market. The recent economic downturn, coupled with disruptive technologies for paperless communication, has resulted in a 40% reduction in newsprint and communication paper consumption. This turning point means that the forest industry’s survival depends on Canada’s ability to develop innovative new uses for high quality BC wood fibers. Despite these market changes, the future of the forest industry in BC and Canada is bright-green, and the timing for a broader consumer acceptance of fiber based materials and products may never be better. Our shifting focus on the environment and climate change makes the use of natural wood fiber a significantly planet friendly choice over traditional fossil based and other non-renewable materials. Historically, before the plastic revolution, fiber was the dominant material for many consumer level products, including clothing, wall coverings, carpet underlay, and of course, grocery bags. We expect to be constructing houses from trees for the foreseeable future and as a result there will be an abundance of high quality residual wood fibre. The competitiveness of the forest industry is dependent on the ability to extract high value fibre to create novel products or processes. This proposal addresses a novel platform technology, i.e. hydrodynamic focusing coupled with reactive multi-fluid layering to develop novel products from micro- or nano-fibrillated cellulose, i.e. building blocks of wood fibers. This production methodology is based upon bio-mimicry of the production of a spider’s silk with the goal of producing high performance bio-composites such as threads, filaments, hollow tubes or films. If feasible, parallelization for industrial production is immediately possible. A five year project is proposed to explore this technology. It will be conducted by one Post-Doctoral fellow, one PhD and one MASc student in either Chemical of Mechanical Engineering.