Development of bio-composites made with nanocrystalline cellulose (NCC)

该项目是为了响应在NSERC(加拿大)-ANR(法国)联合倡议的背景下提出建议的呼吁。在加拿大方面，参加的研究小组来自聚合物和复合材料应用研究中心(CREPEC-Elcole Polytech de Montréal和舍布鲁克大学)和木材研究中心(CRB-Laval大学)。在法国，这些小组分别来自布列塔涅大学(南布雷顿大学)、材料形成中心(巴黎采矿学院)和S造纸实验室(格勒诺布尔理工学院)。纳米粘土、碳纳米管和纤维纳米颗粒等纳米颗粒的加入，以及纳米填料的用量很低，都能显著提高热塑性聚合物的性能。本项目的主要目标是用具有与传统复合材料同等或更好的性能的可再生材料开发一种新的生物复合材料家族。将使用传统的注射和挤压工艺，并将开发新的机械模型，以促进它们在工业应用中的引入。将使用两种热塑性聚合物基质：生物聚合物聚乳酸和石油基树脂聚丙烯。纳米晶纤维素(NCC)聚合物复合材料的开发将是最大的努力。提出的方法的创新之处在于结合了基于生物的元素，使用纳米增强材料，更重要的是研究了这些突破性材料从概念到中试规模的测试。

This project is in response to the call for proposals in the context of the NSERC (Canada) - ANR (France) joint initiative. On the Canadian side, the participating research groups are from the Center for Applied Research in Polymer and Composites (CREPEC-École Polytechnique de Montréal and University of Sherbrooke) and the Wood Research Center (CRB-Laval University). In France, the groups are from the Laboratoire d'Ingénierie des MATériaux de Bretagne (LIMATB - Université de Bretagne-Sud), the Centre de Mise en Forme des Matériaux (CEMEF - École des Mines de Paris), and the Laboratoire de Génie des Procédés Papetiers (LGP2 - Institut Polytechnique of Grenoble). The properties of thermoplastic polymers can be significantly improved by the incorporation of nanometric size particles, such as nanoclays, carbon nanotubes and cellulosic nanoparticles, and that at a very low loading of the nanometric fillers. The main objective of the present project is to develop a new family of biocomposites from renewable materials with equal or superior properties compared to traditional composites. Conventional injection and extrusion processes will be used and new mechanical models will be developed to facilitate their introduction in industrial applications. Two thermoplastic polymer matrices will be used: a biopolymer, polylactide, and a petroleum-based resin, polypropylene. Most efforts will be devoted to the development of nanocrystalline cellulose (NCC) polymer composites. The originality of the proposed approach is to combine bio-based elements, to use nanometric reinforcements and more importantly to investigate these ground-breaking materials from conception to pilot-scale testing.