Surface modification of cellulose nanocrystals for controlled distribution and mechanical properties in latex polymer systems

纤维素纳米晶体的表面改性，以控制乳胶聚合物体系中的分布和机械性能

• 批准号: 492852-2015
• 负责人: Cranston, Emily
• 金额: $ 2.58万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=648261
• 关键词: Surface; modification; cellulose; nanocrystals; controlled

This proposal seeks to develop high-value latex polymer products using cellulose nanocrystals (CNCs) which are sustainable nanoparticles derived from wood pulp with a strong Canadian presence. Latex polymers are used in a broad range of applications including coatings, adhesives, thin films, paints and rubbers. Specifically, we aim to use CNCs as a nanofiller or crosslinking agent in latex polymers. We hypothesize that the addition of CNCs will modify the microstructural properties of the latex and improve their overall performance.** Our industrial partners, FPInnovations and Celluforce, have played a dominant role in CNC development and are the largest producers of CNCs worldwide. CNCs have many potential applications due to their high mechanical strength, large aspect ratio, non-toxicity and biodegradability; however, the development of commercial products containing CNCs is still in its infancy and many polymer applications have yet to be explored. To fully exploit the reinforcing potential of CNCs, the challenge of uniformly distributing CNCs within a polymer matrix and optimizing interfacial compatibility between components must be overcome. We will functionalize CNCs to control their location and role within latex polymers and fully characterize the physical, chemical and mechanical behaviour of CNC-latex composites. The synergy between Cranston and Dubé's expertise (preparation, modification and characterization of CNCs and environmentally benign polymer reaction engineering, respectively) will allow for rapid development of novel commercial products with many Canadian industrial receptors. This research will ensure that Canada remains at the forefront of scientific discoveries for CNCs. (This proposal is part of an effort to secure funding from the Alberta-Ontario Innovation Program (AOIP), which is a partnership between Alberta Innovates Technology Futures, Ontario Centres of Excellence, governments of Alberta and Ontario, and NSERC. The AOIP supports innovation in different areas, including Nanotechnology, Advanced Materials and Forestry, which are represented in the present application.) ********

该提案旨在使用纤维素纳米晶体（CNCs）开发高价值的乳胶聚合物产品，这些纳米晶体是来自加拿大木浆的可持续纳米颗粒。乳胶聚合物用于广泛的应用，包括涂料、粘合剂、薄膜、油漆和橡胶。具体而言，我们的目标是使用CNC作为乳胶聚合物中的纳米填料或交联剂。我们假设添加CNC将改变胶乳的微观结构性质并改善其整体性能。 我们的工业合作伙伴FPInnovations和Celluforce在CNC开发中发挥了主导作用，是全球最大的CNC生产商。由于其高机械强度、大长径比、无毒和生物降解性，CNC具有许多潜在的应用;然而，含有CNC的商业产品的开发仍处于起步阶段，许多聚合物应用尚未被探索。为了充分利用CNCs的增强潜力，必须克服在聚合物基体内均匀分布CNCs和优化组分之间的界面相容性的挑战。我们将功能化CNC以控制其在乳胶聚合物中的位置和作用，并充分表征CNC-乳胶复合材料的物理，化学和机械行为。克兰斯顿和Dubé的专业知识（分别为CNCs的制备、改性和表征以及环境友好的聚合物反应工程）之间的协同作用将允许快速开发具有许多加拿大工业受体的新型商业产品。这项研究将确保加拿大继续处于CNCs科学发现的最前沿。(This该提案是确保艾伯塔省-安大略省创新计划（AOIP）资金的努力的一部分，该计划是阿尔伯塔创新技术未来、安大略省卓越中心、阿尔伯塔和安大略政府以及NSERC之间的合作伙伴关系。AOIP支持不同领域的创新，包括纳米技术，先进材料和林业，这些在本申请中有代表性。********