俞建勇
从事纺织材料、纺织加工技术、纺织产品设计的研究
个性化签名
- 姓名:俞建勇
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
材料科学
- 研究兴趣:从事纺织材料、纺织加工技术、纺织产品设计的研究
俞建勇,自1991.10至1997.9中国纺织大学纺织材料研究开发中心工作,1992.1起任讲师,1994.9起任副教授,1996.7起任中国纺织大学纺织学院纤维材料和产品设计系系主任;1997.10至1999.9国家教委公派在日本东京工业大学从事博士后研究;1999.10至今东华大学(原中国纺织大学)纺织学院工作,2000.9起任教授,2001.9起任博士生导师,2000.2起任东华大学纺织学院院长助理,2001.2起任东华大学纺织学院常务副院长,2001.9起任东华大学纺织学院院长,2005.1起任东华大学现代纺织研究院常务副院长,
主要从事纺织材料、纺织加工技术、纺织产品设计的研究和开发工作。近五年来,在上述相关研究领域,主持完成了国家重大军工配套项目“新型远程战略武器用充气排水漂浮气囊研制(003S-04、003F-04气袋研制)”、上海市重点学科建设项目“高性能柔性纺织复合材料及制品研究”、教育部博士点基金项目“新型高性能制振碳纤维增强复合材料的研究”、教育部留学回国人员基金项目“压电导电型高性能制振复合材料的研究” 等研究工作。目前主持承担着教育部优秀青年教师资助计划“高性能柔性纺织复合材料及制备及应用研究”、国家经贸委创新计划重大专项“大豆蛋白纤维成纱技术及产品开发”、国家“十五”科技攻关项目“大豆蛋白纤维纺织染整技术及针织产品开发”、上海市重大科研项目“公安巡警安全防护服研究”等多项研究工作。近五年来,在上述相关研究领域,获教育部科技进步二等奖一项,发表论文50多篇,其中10篇被SCI收录,国际会议宣读论文8篇,获国家专利5项。
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892
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成果数
20
俞建勇, 张广平, 朱维平
合成树脂及塑料,2004,21 (1):15,-0001,():
-1年11月30日
借助于热分析和力学性能测试考察了釜内与釜外添加成核剂对聚丙烯(PP)结晶行为和力学性能的影响。研究结果表明:2种添加方式对PP结晶温度影响不大,而釜内成核方式能更进一步提高结晶速率,成核PP的弯曲模量、低温抗冲击性能和热变形温度显著提高。
聚丙烯, 成核剂, 结晶行为, 力学性能
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【期刊论文】Allometric Scaling and Instability in Electrospinning*
俞建勇, Ji-Huan He *, *, a, b, Yu-Qin Wan b, c, Jian-Yong Yu b
International Journal of Nonlinear Sciences and Numerical Simulation 5 (3),243-252, 2004,-0001,():
-1年11月30日
e intriguing and enduring problems after the technology was invented by Formhals in 1934. Regulatory mechanisms for controlling the radius of electrospun fibers are clearly illustrated in the different states. Generally, the relationship between radius r of jet and the axial distance z from nozzle can be expressed as an allometric equation of the form r~zb, the values of the scaling exponent (b) for the initial steady stage, instability stage, and terminal stage are respectively-1/2, -1/4, and 0. Allometry in economy, biology, turbulence, astronomy, neural resistance, conductive textile, and macromolecule viscosity is also briefly illustrated.
electrospinning, polymer, nanofiber, allometric scaling, turbulence, intelligent textile, Mark-Houwink relationship, Hodgkin-Huxley model, neural model, resistance, modified Ohm law
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俞建勇, 杨斌(), 俞建勇(), 陶肖明()
纺织学报,2004,25(4):64~65,-0001,():
-1年11月30日
介绍纤维布拉格光栅传感器(FBGS)埋入纺织复合材料中的有效性及测量误差,并对存在问题提出探讨。结果表明:为确保测量效果,必须选择合适的涂层,最有效的方法是适当提高涂层弹性模量。
纤维布拉格光栅传感器(, FBGS), , 测量, 误差, 纺织复合材料
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【期刊论文】Allometric scaling for voltage and current in electrospinning
俞建勇, Ji-Huan He a, b, *, Yu-Qin Wan c
Polymer 45(2004)6731-6734,-0001,():
-1年11月30日
Electrospinning is a simple method used in the preparation of polymer fibers, the diameter of the electrospun fibers, varying in large from micrometer to nanometer, mainly depends upon the electrical field applied. The non-linear relation between the current of charged jet and the applied voltage is an intriguing and enduring problem. An allometric scaling relation between the current and voltage is obtained. He Chengtian' s inequality, which has millennia history, is applied.
Electrospinning, Polymer, Fiber
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【期刊论文】Controlling the Air Vortex Twist in Air-Jet Spinning
俞建勇, Y. C. ZENG, Yu-QIN WAN, AND C. W. Yu, JI-HUAN HE
Textile Res. J. 75 (2), 175-177 (2005),-0001,():
-1年11月30日
We present a simple analytical model for the forces that determine the strength of the air vortex twist acting on the yarns during air-jet spinning as a function of nozzle pressure, flow rate, jet orifice angle, and diameter of the jet orifice.
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【期刊论文】Compression Force Measured by Fiber Optic Smart Cellular Textile Composites
俞建勇, BIN YANG AND XIAO MING TAO , JIANYONG Yu AND HoILUI HO
Textile Res. J. 74 (4), 305-313 (2004),-0001,():
-1年11月30日
This paper is concerned with a study of compression force measured by smart cellular textile composites integrated with fiber Bragg grating (FBG) sensors. The novel design of the cellular textile composite structures integrated with FBG sensors is reported. Unit ceils of a cylindrical composite shell are fabricated from glass and polyester woven fabrics and epoxy, and are used to measure compression loads. When the composite shell unit is under pressure, the axial strain induced in the FBG sensor can be determined by the Bragg wavelength shift obtained fi' om an optic spectrum analysis. A theoretical analysis of the fiber' s axial strain focuses on compression load. The influences of environmental tem-perature, thickness, and effective moduli of the composites, and position and direction of the FBG sensors are discussed. The sensitivity of this device is 0.42nm/N (for the polyester composite) and 0.29nm/N (for the glass composite), and the measurement range is 0-2.1 N (PET) and 0-1.3 N (glass), respectively.
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俞建勇, Xiao-Hong Qin a, b, Yu-Qin Wan a, Ji-Huan He b, c, *, Juan Zhang c, Jian-Yong Yua, b, Shan-Yuan Wang a
Polymer 45(2004)6409-6413,-0001,():
-1年11月30日
Polyacrylonitrile (PAN) is used to study the effect of surface charge on electrospinning by adding LiCl. The theoretical analysis shows that the relationship between radius r of jet and the axial distance z from nozzle follows an allometric law in the form r~z-0.5 in case of full surface charge, and the scaling exponent becomes larger for partly charged fibers in electrospinning.
Electrospinning, Polyacrylonitrile, Scaling
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【期刊论文】LETTER TO THE EDITOR An iteration formulation for normalized diode characteristics
俞建勇, Ji-Huan He , , *, †, Yu-Qin Wan and Qian Guo
Int. J. Circ. Theor. Appl. 2004; 32: 629-632,-0001,():
-1年11月30日
By a general Lagrange multiplier, an iteration approach is proposed to solve the generalized normalized diode equation, by suitable choice of the initial trial-function, one-step iteration leads to a high accurate solution, which is valid for the whole solution domain. Copyright
diode, modelling, Lagrange multiplier, iteration
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【期刊论文】Application of Vibration Technology to Polymer Electrospinning
俞建勇, Ji-Huan He *, *, a, b, Yu-Qin Wan c, Jian-Yong Yu c
International Journal of Nonlinear Sciences and Numerical Simulation 5 (3),253-262, 2004,-0001,():
-1年11月30日
Electrospinning is a novel process for producing superfine fibers by forcing a polymer melt or solution through a spinnerette with an electric field. Application of vibration technology in polymer processes such as injection molding, extrusion and compression molding/thermoforming proved that it works well in reduction of melt viscosity and enhancement of mechanical properties of polymer products. Theory analysis experimental data reveal many parameters, such as fiber diameter, threshold voltage, fiber strength, are related to the polymer viscosity. The paper has dual aims, one is to produce finer nanofibers under lower applied voltage by vibration technology, the other is to reduce the applied voltage to increase the fiber strength. The paper draws attention to possible of spinning fibers with lower threshold voltage and higher mechanical strength.
electrospinning, nanofiber, viscosity, vibration technology, oscillation, temperature, spider silk, allometric scaling, oscillation-electrospinning, conductive fiber, intelligent fiber, self-cleaning clothing
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俞建勇, 张广平, 朱维平, 李发学, 戴干策
高分子材料科学与工程,2004,20(1):157~160,-0001,():
-1年11月30日
用DSC手段考察了反应釜内原位共聚制备的含有成核剂及纳米碳酸钙的聚丙烯(PP)共聚物的非等温结晶行为。结果表明,成核剂使PP共聚物的结晶温度升高,结晶度降低,结晶速率略有提高。而纳米碳酸钙则大幅提高了PP共聚物的结晶温度和结晶速率,结晶度也增加了约1O%。并采用Ozawa法和Caze法描述了非等温结晶动力学。
聚丙烯共聚物, 原位聚合, 成核剂, 纳米碳酸钙, 非等温结晶动力学
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