Control of the Evolution of Morphology of Polymer Blends and Polymer Nanocomposites during Processing

聚合物共混物和聚合物纳米复合材料加工过程中形态演变的控制

• 批准号: RGPIN-2018-03888
• 负责人: Demarquette, Nicole
• 金额: $ 2.84万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754428
• 关键词: Control; Evolution; Morphology; Polymer; Blends

Polymer blends, with a global market of about $ 40 billion, which grows at about 4.4% annually, are used in many industries such as packaging, transportation, construction and others, due to the possibility of synergistically combining the properties of their components. Polymer nanocomposites, which consist of a polymer matrix in which fillers with size ranging from 1 to 100 nm are distributed, have become increasingly popular in the academic and industrial world. Their market shows economic growth of about 20% per year.These multiphase materials have their engineering properties that depend on their morphology, which in turn, is a result of its evolution during processing. Over the years, I have studied the factors that affect the morphology, and how to control it for both polymer blends and polymer nanocomposites. I made significant contributions in the field of rheology, interface control and morphology characterization of these materials. The present research program will continue contributing to a fundamental understanding of the evolution of morphology of these multiphase polymeric materials during conventional polymer processing and will leverage this knowledge to extend it to novel polymer processing techniques such as electrospinning and additive manufacturing. In particular, during the next five years I will1) Study, theoretically, as well as, experimentally, the rheological behavior of polymer blends to which nanoparticles are added, in order to understand the evolution of their morphology during processing.2) Develop tools to control the morphology and functional properties of electrospun scaffolds and their fibers. This involves the development a theoretical model of the electrospinning process, as well as, experimental studies to evaluate the formation of morphologies of multiphase materials during that process. 3) Develop tools to control the morphologies of polymer blends and nanocomposites processed by additive manufacturing. This includes modelling the flow within the capillary ending with the printing head, and experimentally, evaluating the morphology formation of multiphase materials with the ultimate objective of obtaining gradient morphology materials.6 HQP, 3 PhD and 3 MSc will participate in that program.This research will be carried out in collaboration with researchers from four different countries: Canada, France, Singapore and Brazil.

聚合物混合物的全球市场约为400亿美元，每年增长约4.4％，在许多行业（例如包装，运输，建筑和其他行业）中都使用，因为可能会协同结合其组件的属性。聚合物纳米复合材料由聚合物矩阵组成，其中分布量从1到100 nm的大小填充，在学术和工业世界中变得越来越受欢迎。他们的市场显示每年约20％的经济增长。这些多相材料具有取决于其形态的工程特性，而这又是其在加工过程中发展的结果。多年来，我研究了影响形态的因素，以及如何控制聚合物混合物和聚合物纳米复合材料。我在这些材料的流变学，界面控制和形态表征方面做出了重大贡献。本研究计划将继续有助于对传统聚合物处理期间这些多相聚合物材料形态的演变的基本理解，并将利用这些知识将其扩展到新颖的聚合物加工技术，例如电纺丝和增材制造。特别是，在接下来的五年中，我将研究研究，以及在实验上，添加纳米颗粒的聚合物混合物的流变行为，以了解处理过程中其形态的演变。这涉及开发静电纺丝过程的理论模型，以及在此过程中评估多相材料形态的实验研究。 3）开发工具来控制通过添加剂制造处理的聚合物混合物和纳米复合材料的形态。这包括对毛细管内的流动进行建模，并在实验上，评估多相材料的形态形成，其最终目的是获得梯度形态学材料。6HQP，3博士学位和3 MSC将参与该计划。将与四个不同国家的研究人员合作进行该计划。