摘要：

　　Dielectric elastomers (DEs) can convert electric energy to mechanical energy without gearing and work efficiently over a broad frequency range.1-3 Owing to its low modulus, large strain, fast response, lightweight, reliability, and high energy density, DEs find many applications in industry such as artificial muscles, sensors, and micro-robotics. A key for the preparation of DE with high actuated strain at a low electric field is to design and develop elastomers with high dielectric constant and low modulus. In this work, some new methods are used for the design and preparation of high performance polyurethanes DEs. The first one is the preparation of DE with high dielectric constant and low modulus by controlling the hydrogen bonding between thermoplastic polyurethane (TPU) via the addition of polyethylene glycol（PEG）oligomer or dinaphthyldiimide. The second one is the preparation of an interlock structured all-organic dielectric elastomer with large actuation strain under ultralow-voltage and high mechanical strength. The third one is the preparation of TPU DE with high dielectric

 　　constant and low dielectric loss by using the combined technique of disrupting hydrogen bonding between TPU chains and in-situ thermal reduction of graphene oxide nanosheets (GONS). The mechanisms of these new methods, the dielectric properties of the as-prepared DE materials, and the structure-property relationship are carefully investigated.

关键词：Dielectric elastomers，dielectric properties，actuated strain

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个人简介：

教育背景
1990.9~1994.7 沈阳化工学院，橡胶工程专业，本科
1994.9~1997.7北京化工大学，复合材料专业，硕士
2000.9~2004.5北京化工大学，材料学专业，博士
工作经历
1997年9月-1999年9月，北京化工大学，助研
1999年10月-2001年9月，北京化工大学，讲师
2001年10月-2003年9月，北京化工大学，副教授
2003年10月-2005年9月，北京化工大学，见习教授
2005年10月-至今，北京化工大学，教授、博士生导师(2006)
2006年5月-2006年10月，美国南达科他州矿业技术学院，访问学者
主要研究领域
1. 纤维增强橡胶复合材料： 纳米纤维、高性能纤维(芳纶、超高分子量聚乙烯纤维)增强橡胶复合材料
2. (导电、介电、抗磨减摩、阻燃等)功能性弹性体复合材料
3. 热塑性弹性体
4．弹性体复合材料的多层次微结构-性能关系

科研项目、研究成果及获奖：
先后负责承担了国家863计划、科技部支撑计划、军工配套计划、国家自然科学基金、北京市教委、科委及企业等项目20余项。在国内外期刊上发表论文100余篇，其中SCI论文75篇，做重要国际学术会议邀请或口头报告10 余次，国内学术会议邀请或口头报告30余次。申请中国发明专利30余件，其授权15件。成果获国家技术发明二等奖1 项(第2)、省部级技术发明一等奖3项(第1和第2)、科技进步一等奖2 项(第3和第4)，科技进步二等奖2 项(第2和第8)、科技进步三等奖1项(第1)。中国仪表功能材料学会第六届理事会理事，中国化工学会橡胶专业委员会第八届委员，《The Scientific World Journal：Materials Science(SCI) 》编委，中文核心期刊《特种橡胶制品》、《弹性体》编委，《合成橡胶工业》通讯员。国家科技奖励网评专家、国家863项目同行评审专家、国家中小企业创新基金评审专家、国家级火炬计划项目认定专家。2002 年入选北京市科技新星，2008 年入选教育部新世纪优秀人才，2012 年北京化工大学优秀教师(20 名)，第五届侯德榜化工科技青年奖，2013年中国石油和化学工业联合会青年科技突出贡献奖，2013年全国石油和化工优秀科技工作者。
代表性论文
1.Evolution of conductive network and properties of nanorod/polymer composite under tensile strain, Journal of Chemical Physics 2013, 139, 024903. Yancong Feng, Nanying Ning, Liqun Zhang, Ming Tian*(田明), Hua Zou, Jianguo Mi*
2.Relationship between Dispersion and Conductivity of Polymer Nanocomposites: A Molecular Dynamics Study, J. Phys. Chem. B 2012, 116, 13081-13088.Yancong Feng, Hua Zou, Ming Tian*(田明), Liqun Zhang, Jianguo Mi*.
3.Bis-GMA/TEGDMA dental composites reinforced with electrospun nylon 6 nanocomposite nanofibers containing highly aligned fibrillar silicate single crystals. Polymer, 2007, 48: 2720-2728. Ming Tian (田明), Yi Gao, Yi Liu, Yiling Ne Hedin, Hao Fong
4.Fabrication and evaluation of Bis-GMA/TEGDMA dental resins/composites containing nanofibrillar silicate. Dental Materials, 2008, 24: 235-243. Ming Tian (田明), Yi Gao, Yi Liu, Yiliang Ne Hedin, Hao Fong*
5.Improved polyvinylpyrrolidone (PVP)/graphite nanocomposites by solution compounding and spray drying. Polymer for Advanced Technology. 2012, 23: 652-659. Leilei Wang, Liqun Zhang, Ming Tian*(田明)
6.A new kind of electro-active polymer composite composed of silicone elastomer and polyethylene glycol. J.Phys.D: ppl.Phys.2012, 45:1-9. Haoliang Liu, Liqun Zhang, Dan Yang, Nanying Ning, Yingchun Yu, Bingyue yan, Ming Tian*(田明)
7.Electrospun composite nanofibers of polybutadiene rubber containing uniformly distributed Ag nanoparticles, Materials Letters. 2012, 84: 5-8. Haiyan Wu, Qinghua Hu, Liqun Zhang, Hao Fong*, Ming Tian*(田明)
8.Rubber composite fibers containing silver nanoparticles prepared by electrospinning and in-situ chemical crosslinking. Express polymer letters. 2012, 6(4): 258-265. Q. Hu, H. Wu, L. Zhang, H. Fong, Ming Tian*(田明)
9.Mechanical and tribological properties of acrylonitrile-butadiene rubber filled with graphite and carbon black. Materials Design. 2012, 39: 450-457. Leilei Wang, Liqun Zhang, Ming Tian*(田明)
10. Effect of expanded graphite (EG) dispersion on the mechanical and tribological properties of nitrile rubber/EG composites. Wear. 2012, 276-277:85-93. Leilei Wang, Liqun Zhang, Ming Tian*(田明)