Design of Composite Structures for Sustainability and Recyclability

可持续性和可回收性复合结构设计

• 批准号: RGPIN-2019-05959
• 负责人: Lessard, Larry
• 金额: $ 2.84万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=687312
• 关键词: Design; Composite; Structures; Sustainability; Recyclability

The long term objective is the incorporation of sustainability into all composite manufacturing processes. Recycling, sustainability and environmental friendliness are relatively new to the world of composite materials. Both aerospace and automotive industries are realizing the need for a more balanced approach to design and manufacturing with these materials. There are 3 main ways to make composites more environmentally friendly. One is to use more sustainable base materials in the making of composites, such a renewable natural fibers. The second is to make use of the waste that is inherent to many composites manufacturing processes, typical of the aerospace industry: prepreg cutoffs, rejected parts and part trimmings. Finally there is the question of how to recycle end-of-life structures made of composite materials.***There are thus two fronts where important research should be conducted: (1) sustainable design can be achieved by using more sustainable base materials, and (2) for those materials that are not sustainable, find a way to recycle and reuse them during and after the manufacturing cycle. The science involved is to adapt current modeling and testing methods to improve the design and manufacturing of recycled and sustainable materials, which may not be quite in the same basic form as regular composite materials. The approach will use advanced material models, material and process characterization and an overall sustainable design approach.***Over the next 5 years, this research program will develop methods to achieve a more complete recycling processes Waste material will be extracted in different forms, from fine short fibers to larger chips and pieces, and each form will lead to a different recycling process. The recycling processes involve several steps:***(1) low cost processes will be used to break down the composite waste, ***(2) material characterization techniques such microscopy, DSC and rheology will determine the consistency of recycled materials, ***(3) multi-scale modeling and multi-objective optimization will be used to design the final recycled materials and structures (supported by testing).***It is essential for engineers and researchers to do their part in this type of research for the sake of the environment. The future benefits of this research will provide science and HQP that are directly aimed at improving the environment.********

长期目标是将可持续性纳入所有复合材料制造工艺中。回收、可持续性和环境友好对于复合材料领域来说相对较新。航空航天和汽车行业都意识到需要采用更平衡的方法来使用这些材料进行设计和制造。有3种主要方法可以使复合材料更加环保。一是在复合材料的制造中使用更可持续的基础材料，例如可再生天然纤维。 第二个是利用许多复合材料制造工艺中固有的废物，典型的是航空航天工业：预浸料切割、报废零件和零件修整。最后还有如何回收由复合材料制成的报废结构的问题。***因此，应在两个方面进行重要研究：（1）可以通过使用更可持续的基础材料来实现可持续设计，（2）对于那些不可持续的材料，找到一种在制造周期期间和之后回收和再利用它们的方法。所涉及的科学是适应当前的建模和测试方法，以改进可回收和可持续材料的设计和制造，这些材料的基本形式可能与常规复合材料不太相同。 该方法将使用先进的材料模型、材料和工艺表征以及整体可持续设计方法。***在未来5年中，该研究计划将开发实现更完整回收过程的方法。废物材料将以不同的形式提取，从细短纤维到较大的碎片和碎片，每种形式都会导致不同的回收过程。 回收过程涉及几个步骤：***（1）低成本工艺将用于分解复合废物，***（2）材料表征技术，如显微镜、DSC和流变学将确定回收材料的一致性，***（3）多尺度建模和多目标优化将用于设计最终的回收材料和结构（由测试支持）。***这对于工程师和工程师来说至关重要 研究人员为了环境而在此类研究中尽自己的一份力量。 这项研究的未来效益将提供直接旨在改善环境的科学和 HQP。********