Structured Composite Materials with Variable Adhesion Properties

具有可变粘合性能的结构化复合材料

基本信息

批准号：
1435745
负责人：
Kevin Turner
金额：
$ 37.13万
依托单位：
University of Pennsylvania
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2014
资助国家：
美国
起止时间：
2014-09-01 至 2018-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1435745&HistoricalAwards=false
关键词：
Structured Composite Materials Variable Adhesion

项目摘要

Proposal 1435745Structured Composite Materials with Variable Adhesion PropertiesThere are a number of applications for materials that have the ability to adhere strongly to a surface under certain circumstances, and to exhibit weak adhesion in other circumstances. Materials with variable adhesion are needed for applications such as integrated circuit fabrication, solar cell manufacturing, medical tapes, and climbing robots. While adhesion at an interface can be altered through external forces such as temperature or magnetic field, a much simpler design is to design materials with variable adhesion that can be altered depending on the direction of the applied force. This award supports fundamental research that will enable the design and fabrication of structured composite materials that offer the ability to significantly vary adhesion by changing the direction of loading applied to the adhered interface. These composite materials with variable adhesion have uses in manufacturing, healthcare, and consumer products, thus this research will benefit U.S. industry and the economy. This award will also result in the training of students in several disciplines, including mechanical engineering, microfabrication, polymer processing, and materials science. This training in key engineering areas will help to enhance the technical workforce and improve U.S. competiveness. The proposed composite materials provide the ability to significantly alter the effective adhesion of an interface by changing the loading direction. While the basic principles of these materials have been demonstrated through preliminary experiments and modeling, fundamental research is needed to establish an understanding of the relationship between the processing, structure, and adhesion properties of structured composite materials. This research will use analytical and computational mechanics models to investigate the relationship between the structure of the composite and the failure behavior of the interface. Experiments will be performed to characterize the adhesive and constitutive properties of the constituent materials of the composites as input for the models. A combination of microfabrication and polymer molding techniques will be used to fabricate structured composite materials that will then be extensively characterized under various loading conditions. The combination of modeling and experiments in this research will lead to new fundamental understanding of structured composite materials and will enable the rational design of materials with variable adhesion.

提案1435745结构结构的复合材料具有可变的粘附性属性，是许多材料的应用，在某些情况下，具有强烈粘附在表面并在其他情况下表现出较弱的粘附的材料。对于集成电路制造，太阳能电池制造，医疗磁带和攀爬机器人等应用，需要具有可变粘附的材料。虽然可以通过温度或磁场等外力改变界面的粘附力，但更简单的设计是设计具有可变粘附的材料，可以根据所施加力的方向进行更改。该奖项支持基础研究，该研究将使结构化复合材料的设计和制造能够通过更改应用于粘附界面的加载方向来显着改变附着的能力。这些具有可变附着力的复合材料在制造，医疗保健和消费产品中具有用途，因此这项研究将使美国的行业和经济有益。该奖项还将导致在几个学科中培训学生，包括机械工程，微型制作，聚合物处理和材料科学。在关键工程领域的这种培训将有助于提高技术劳动力并提高美国的竞争能力。所提出的复合材料提供了通过改变加载方向来显着改变界面有效粘附的能力。尽管这些材料的基本原理已经通过初步实验和建模来证明，但需要基础研究来确定对结构化复合材料的处理，结构和粘附特性之间关系的理解。这项研究将使用分析和计算力学模型来研究复合材料结构与界面的故障行为之间的关系。将进行实验，以表征复合材料的组成材料的粘合剂和本构性能作为模型的输入。微生物和聚合物成型技术的组合将用于制造结构化的复合材料，然后在各种载荷条件下进行广泛表征。在这项研究中建模和实验的结合将导致对结构化复合材料的新基本理解，并能够使具有可变粘附的材料的合理设计。