Manufacturing of Multifunctional Nanocomposites

多功能纳米复合材料的制造

• 批准号: RGPIN-2017-04136
• 负责人: Park, Simon
• 金额: $ 4.01万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=710898
• 关键词: Manufacturing; Multifunctional; Nanocomposites

With the advent of the Internet of Things and Industrie 4.0, the development of miniature, cost-effective and reliable devices is becoming ever more important for today's society. Nano and micro scale manufacturing has become an “enabling” technology for a variety of applications by combining material science, engineering and manufacturing. We propose to research the manufacturing of multifunctional nanocomposites. Smart polymeric nanocomposites are considered promising new materials. A lot of attention is being paid to carbon-based nanoparticles, particularly carbon nanotubes (CNTs) and graphenes, due to their outstanding mechanical, electrical and thermal properties. A minute amount of carbon-based nanoparticulates added to polymer components can significantly enhance their functionalities. Precision manufacturing, through a combination of additive and subtractive processes, of multifunctional composites is vital in order to achieve portability, excellent energy usage and sensing capabilities. The goals of this program are in-depth knowledge and the development of cost-effective 3D nano-patterned devices using a variety of nanocomposites that synergistically enhance functionalities. Polymeric nanocomposites will be deposited onto desired substrates utilizing novel spraying and deposition methods. The carbon nanoparticulates will be functionalized with iron oxides, so that the carbon nanoparticulates can be aligned with magnetic fields. The electrodes will be deposited using proprietary copper nanoparticle based inks, and photo sintering will generate conductive paths onto flexible substrates. In order to obtain the desired functionalities, processes will be optimized through modeling, since there are several challenges associated with uniform dispersion and thickness control. To further enhance functionalities of nanocomposites, we will investigate nano mechanical machining utilizing an atomic force microscope (AFM) probe to remove material and generate patterns onto the nanocomposites. Traditional tip-based machining is limited in the fabrication of grooves and often results in high side pileups. To tackle this challenge, we will implement vibration-assisted nano mechanical machining by externally vibrating the samples while the tool removes a portion of the workpiece. This will mimic rotational cutting to shear the workpiece, in order to reduce the cutting forces and be able to generate 3D shapes. The technological outcomes through the proposed program will be the catalysts for other novel applications and developments in Canada, and the advancements will promote technology transfer to industrial partners. Moreover, this research is very important for the interdisciplinary training of highly qualified personnel, who will learn design, material science, vibrations, manufacturing, simulation and control.

随着物联网和工业4.0的出现，开发微型、高性价比和可靠的设备对当今社会变得越来越重要。纳米和微尺度制造通过将材料科学、工程和制造相结合，已成为一种“使能”技术，可用于各种应用。我们提出研究多功能纳米复合材料的制备。智能高分子纳米复合材料被认为是一种很有前途的新型材料。碳基纳米颗粒，特别是碳纳米管（CNTs）和石墨烯，由于其优异的机械、电学和热学性能而备受关注。少量的碳基纳米颗粒添加到聚合物组件中可以显著增强其功能。为了实现便携性、卓越的能源利用和传感能力，多功能复合材料的精密制造，通过加法和减法工艺的结合是至关重要的。该计划的目标是深入了解和使用各种协同增强功能的纳米复合材料开发具有成本效益的3D纳米图案设备。