Fabrication and optimization of polymeric accoustic foams with structural fonctionality (I2I Phase I)

具有结构功能的聚合物声学泡沫的制备和优化（I2I 第一阶段）

• 批准号: 505836-2017
• 负责人: Ross, MFAnnie
• 金额: $ 9.11万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618533
• 关键词: Fabrication; optimization; polymeric; accoustic; foams

A novel acoustic foam was developed by Polytechnique Montreal in response to the needs of the aviationindustry. The thermoset polymeric open-cell foam shows excellent acoustic absorption coefficient in broadfrequency range, and particularly at low frequencies. Further, is light and mechanically strong. The foamsmechanical properties are attractive for applications in aircraft engines, flooring systems and fuselage. Thefabrication process is simple and reliable. Acoustic specialists in the aeronautics and the building constructionfields have recognized the potential of the proposed product and a provisional patent has been filed. Thecompanies approached are welcoming this unexampled multifunctional technology with high potential forcommercialization, and are calling for further testing and improvements.The purpose of this project is to respond to industry requirements prior to industrialization by validating thetechnology in relevant environment. The objective is to prove that the manufacturing process parameters arefully controlled, and that these thermoset foams respect acoustic, physical and mechanical specifications fromindustry. The project will show the benefits of making these low-cost acoustic foams with flight certifiedthermosetting resins. The fabrication process will be optimized. Large samples will be manufactured. Differentresin systems and foam structures will be tested. Acoustic performance, mechanical properties andairworthiness will be assessed experimentally. Effectiveness of acoustic prediction tools will be verified.Integration in representative aerospace sandwich structure will be tested.This new technology will contribute to the economic health and growth of the 211 000 jobs and 28 G$Canadian aerospace industry. It is providing a means of limiting the "adverse community reaction related to theoperation and expansion of airports" deplored by the International Civil Aviation Organisation. Mitigation ofaircraft noise is among manufacturers and airport managers' top priorities and key environmental goals.

根据航空工业的需要，蒙特利尔理工大学开发了一种新型的声泡沫材料。热固性聚合物开孔泡沫在宽频范围内，特别是在低频范围内，表现出良好的吸声系数。此外，它重量轻，机械强度高。泡沫力学性能对飞机发动机、地板系统和机身的应用具有吸引力。制作工艺简单可靠。航空和建筑领域的声学专家已经认识到该产品的潜力，并申请了临时专利。与之接触的公司都对这种前所未有的多功能技术表示欢迎，认为它具有很高的商业化潜力，并呼吁进一步测试和改进。本项目的目的是通过在相关环境中验证技术，在工业化之前响应行业需求。目的是证明制造工艺参数是完全控制的，并且这些热固性泡沫符合工业的声学，物理和机械规格。该项目将展示使用经飞行认证的热固性树脂制造这些低成本隔音泡沫的好处。制造工艺将得到优化。将生产大样品。不同的树脂系统和泡沫结构将被测试。声学性能、力学性能和适航性将进行实验评估。声学预测工具的有效性将得到验证。将在具有代表性的航空航天夹层结构中进行集成测试。这项新技术将有助于经济健康发展，创造21.1万个就业岗位和28亿加元的加拿大航空航天工业。它提供了一种手段，以限制国际民用航空组织（International Civil Aviation Organisation）所谴责的“与机场运营和扩建有关的不良社会反应”。减少飞机噪音是制造商和机场管理者的首要任务和关键环境目标之一。