Shape Memory Polymer Composites with Complex Fibre Architectures

具有复杂纤维结构的形状记忆聚合物复合材料

• 批准号: 418533-2012
• 负责人: Ayranci, Cagri
• 金额: $ 1.68万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=596405
• 关键词: Shape; Memory; Polymer; Composites; Complex

Shape Memory Polymers (SMPs) can store a temporary shape and then be restored to their original shape upon application of an external stimulus, such as heat. SMPs offer important advantages over other shape memory materials, such as lightweight, high strain recover-ability, and easier tailorable properties. Conversely, when used in pure form, SMPs suffer from their inherent low mechanical properties and shape recovery forces (SRF). These are important properties that need to be improved for applications such as deployable space structures and micro aerial vehicles. These shortcomings can be addressed by fiber-reinforcing SMPs to create SMP-composites (SMPCs). Braiding is a widely used structural composite preform manufacturing technique that is capable of forming complex fibre architectures with excellent control over the fibre yarn orientation. This project aims to investigate braid-reinforced SMP-composites (BSMPCs). The long-term objectives are to significantly improve the fundamental understanding of the thermo-mechanical properties of BSMPCs via a detailed and methodical experimental and analytical investigation. For the next five years three short-term objectives (in the form of projects) are proposed to fulfill some of the long-term objectives: (1) Characterization of the effect of braid angle on BSMPCs to understand the behavior of BSMPCs, (2) Development of a predictive model for thermo-mechanical properties (including SRF) of BSMPCs, and (3) Field-activation of BSMPCs to provide means of activation of these materials not only in controlled laboratory environments but also in real life scenarios. Successful completion of these projects will lead to understanding the advantages offered by these new multifunctional composite materials and will bring us closer to develop design guidelines for BSMPCs that will allow the most effective use of these materials. It will put Canada forward as a leading country on multifunctional smart structures. Importance of these structures is recognized by NSERC as it is listed as one of NSERC Strategic Project Grants target areas. The project will also train a number of Highly Qualified Personnel that will be tremendous assets to Canadian industry/research workforce.

形状的记忆聚合物（SMP）可以存储暂时的形状，然后在应用外部刺激（例如热量）时恢复其原始形状。与其他形状的记忆材料相比，SMP具有重要的优势，例如轻质，高应变可恢复能力和更容易定制的特性。相反，当以纯形形式使用时，SMP具有其固有的低机械性能和形状恢复力（SRF）。这些是重要的特性，需要改进用于可部署空间结构和微型航空车的应用。这些缺点可以通过纤维增强SMP来解决SMP复合材料（SMPC）来解决。编织是一种广泛使用的结构复合预成型制造技术，能够形成对纤维纱方向具有良好控制的复杂纤维架构。该项目旨在研究辫子增强的SMP复合材料（BSMPC）。长期目标是通过详细且有条理的实验和分析研究显着提高对BSMPC的热机械特性的基本理解。在接下来的五年中，提出了三个短期目标（以项目的形式）来满足某些长期目标：（1）辫子角度对BSMPC的影响了解BSMPC的行为的表征，（2）提供预测性模型的热机械特性（包括BSMPC的SRF）的预测模型（包括BSMPC的SRF） - （3）领域的（3）字段 - （3）字段 - （3）字段的行动 - （3）。材料不仅在受控的实验室环境中，而且在现实生活中。这些项目的成功完成将导致理解这些新的多功能复合材料所提供的优势，并将使我们更加接近为BSMPC制定设计指南，以最有效地使用这些材料。它将使加拿大成为多功能智能结构的领先国家。这些结构的重要性被NSERC认可，因为它被列为NSERC战略项目之一。该项目还将培训许多高素质的人员，这将是加拿大行业/研究人员的巨大资产。