2018年6月26日学术讲座:基于碳纳米复合材料的生物大应变传感器

报告主题:基于碳纳米复合材料的生物大应变传感器

主讲人:孙力 教授

报告时间:2018626日13:00

报告地点综合楼C 301会议室

主讲人简介:

    孙力博士目前是休斯敦大学机械工程系教授和研究生招生主任。至今发表SCI论文100余篇, H值30。其中超过35篇论文发表在影响因子高于3.5 的杂志上。承担美国国家自然科学基金,美国教育部,NASA及工业界项目32项,近几年来,孙力博士在碳纳米纤维高分子复合材料和纳米功能材料在能源/生物传感器/介入治疗方面取得了多项成果。

报告摘要:

     Carbon nanomaterials have caught extensive research and application development interests since 1980s. Highlighted by the 1996 Noble prize in Chemistry and the 2010 Noble in Physics, carbon based structures maybe the most studied and mentioned nanomaterials. Many companies are now capable of producing carbon nanomaterials on the order of hundreds tons/per year, but there still exists a tremendous gap of mass application of these materials. With the interest of polymer composite development shifted to nanoscale fillers, material synthesis quality control and throughput becomes important. In our recent study, the vapor-grown carbon nanofibers (VCNFs) and graphene materials were used to instead of the commonly used carbon nanotubes for polymer composite development. To improve processing reproducibility, a multi-step dispersion and micro filtration process was developed to assemble the loose CNFs into self-supportive paper sheets form and become a novel platform to achieve multifunctionalities. After incorporating carbon nanomaterials with elastic polymers, significant electro-mechanical coupling effects can be observed. This effect can have extensive application potentials in developing lightweight and high strength composites that can have self-sensing and structure health monitoring capabilities. At the same time, these composites can have improved electromagnetic field shielding and static discharge characteristic together with improved vibration damping and noise reduction functions. Through this example, we expect to demonstrate the great potential of designing non-traditional nanomaterials and developing non-conventional nanomanufacturing techniques.