武德珍
(1)聚合物结构与性能关系研究和聚合物改性;(2)高性能及功能高分子材料的制备。
个性化签名
- 姓名:武德珍
- 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:
材料科学基础学科
- 研究兴趣:(1)聚合物结构与性能关系研究和聚合物改性;(2)高性能及功能高分子材料的制备。
基本情况:武德珍,女,1963年12月16日出生;工学博士,教授,博士生导师。主要从事研究领域:(1)聚合物结构与性能关系研究和聚合物改性;(2)高性能及功能高分子材料的制备。科研获奖和发表论文情况:自1989年留校任教以来,一直从事科研和教学工作,到目前为止,共获得省部级以上科技奖励7项,其中国家级奖励4项。近五年的获奖有:(1)氯乙烯可控聚合专用料及PVC合金材料的高性能化和应用研究,2001年获得石油化学工业协会科技进步二等奖,金日光、武德珍等;(2)高强超韧聚苯醚动态化学相容合金与大型金属嵌件注塑制品的开发,2001年北京市科技进步二等奖,金日光、冯威、武德珍等;(3)超高分子量聚乙烯原位增强聚丙烯超韧化合金的研究,1999年国家科技进步三等奖,金日光、汪晓东、武德珍等;(4)反应型PVC/PP高强、超韧、高流动合金材料的研究与开发,1998年石油与化学工业局科技进步二等奖,金日光、武德珍等。发表学术论文40余篇,其中SCI收录6篇,EI收录15篇。
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508
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成果数
10
【期刊论文】增容剂EAA对PA6/POE共混体系的相态及性能的影响
武德珍, 李小梅, 王磊, 武德珍*, 吴立峰
中国塑料,2001,15(12):21-25,-0001,():
-1年11月30日
采用乙烯-丙烯酸共聚物(EAA)作为尼龙6/乙烯-1-辛烯共聚物弹性体(POE)共混体系的增容剂。详细研究了增容剂用量与共混体系的相态、力学性能和流变性能的关系。结果表明相容剂的加入使共混体系的分散性大大改善,分散相POE粒子明显细化,粒子较均匀地分散在PA6连续相中;相容剂的加入使体系韧性明显提高,拉伸强度和弯曲弹性模量下降,加工性能也得到改善,而且当每100份PA6/POE用量为85/15、EAA用量在4份左右时,其增容作用达到饱和,综合性能达到最优。
乙烯-1-辛烯聚合物, 乙烯-丙烯酸共聚物, 聚酰胺6, 合金
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武德珍, 齐胜利, 金日光
现代化工,2003,23(11):9-14,-0001,():
-1年11月30日
介绍了原位一步自金属化制备银/聚酰亚胺(PI)纳米复合薄膜的方法。以银盐为线索,评述了各种银盐/二酐/二胺体系所制得的复合薄膜的性能。采用该法可制得具有较高的表面反射率和电导率,优异的界面粘结性,并保持母体PI大部分优异性能的复合薄膜;其反射性和导电性与银含量,银的配位体或者反离子,二酐、二胺的种类及热处理工艺等因素相关。使用三氟乙酰丙酮银盐(AgTFA),银的质量分数为12%以上,进行适当的热处理,则某些体系所制薄膜的表面反射性和导电性可以达到纯银的水平,而其他的银盐体系制备的薄膜只能达到中等反射性而无导电性,但对薄膜表面进行轻微抛光可以提高反射性和导电性。
聚酰亚胺, 纳米复合薄膜, 银盐, 反射性, 导电性, 原位一步法, 自金属化, 反向化学气相沉积
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50浏览
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武德珍, 张铭, 王成忠, 武德珍**, 于运花, 杨小平
塑料工业,2004,32(5):11-13,-0001,():
-1年11月30日
使用双酚A型环氧乙烯基酯树脂(VER)与双酚F型环氧树脂(EP)同步固化的方法,对环氧树脂进行增韧;采用DSC研究了混合体系的固化反应过程,对固化材料的力学性能和热机械性能进行了测试,并用扫描电子显微镜(SEM)表征其形态结构。结果表明,当m(VER):m(EP)=90∶10时,固化材料的的玻璃化转变温度达到207.3℃,分别比纯环氧树脂和纯VER树脂高25℃和75℃;当m(VER):m(EP)=50∶50时,材料的冲击强度达到了8.08kJ/m2,体系具有最好的综合机械性能和较好的耐热性。
环氧树脂, 环氧乙烯基酯树脂, 互穿网络, 耐高温, 增韧
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武德珍, 毛立新, 李小梅, 金日光
北京化工大学学报,2002,29(5):38-41,-0001,():
-1年11月30日
以聚苯醚合金为研究对象,详细讨论了各种添加剂组分及其用量对共混体系力学性能的影响,考察了合金的力学性能变化与群子参数之间的关系。结果表明,当群子参数R1≥R2时,添加剂的加入会对合金的破坏起到促进作用,使合金力学性能降低;当R1≤R2时,添加剂的加入会对合金的破坏起到保护作用,使其力学性能提高。
聚苯醚, 合金, 破坏机理, 群子, 力学性能
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61浏览
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武德珍, Dezhen Wu, Xiaodong Wang*, Riguang Jin
European Polymer Journal 40(2004)1223-1232,-0001,():
-1年11月30日
Blends of poly (2,6-dimethyl-1,4-phenylene oxide)/nylon 6 alloys based on ethylene-propylene-diene elastomer (EPDM) grafted with maleic anhydride (MA) (EPDM-g-MA), EPDM grafted with glycidyl methacrylate (EPDM-g-GMA), and styrene-ethylene-butadiene-styrene block copolymer grafted with MA (SEBS-g-MA) were prepared via melt extruction, and morphology, mechanical properties, and rheology were studied. The compatibilizing effects of functionalized elastomers on the PPO/nylon 6 alloys were proved by DSC analysis and confirmed by the significant improvement in the notched Izod impact strength. Toughening was resulted from the smaller particle size and finer dispersion of EPDM in the PPO/nylon 6 matrix as well as a novel network structure of SEBS-g-MA domain in matrix. The notched Izod impact strength of the blends exhibited an optimum value when the extent of MA or GMA graft ratio of EPDM varied, which was an order of magnitude higher than the non-toughened alloys. The morphology revealed that the size of EPDM particles decreased with an increase in graft ratio of MA or GMA onto EPDM. Rheology investigation indicated that the MA or GMA moieties on EPDM reacted with the amine groups of nylon 6, which increased the molecular weight and the degree of branching, and thus resulted in an increase in the viscosity of the blends. This proved the reactive compatibilization between functionalized EPDM and PPO/nylon 6 matrix.
PPO/, nylon 6 alloys, Elastomer, Compatibilization, Toughening, Morphology
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【期刊论文】PVC\弹性体\纳米CaCO3复合体系的加工和组成对力学性能的影响
武德珍, 宋勇志, 金日光
复合材料学报,2004,21(1):119-123,-0001,():
-1年11月30日
详细研究了聚氯乙烯(PVC)、氯化聚乙烯(CPE)和纳米碳酸钙(Nano-CaCO3)的三元复合体系的加工工艺和组成变化与力学性能之间的关系。研究表明:如果先将CPE等弹性体和纳米CaCO3制成母粒,然后再与PVC进行混合,有利于纳米粒子在基体中的分散,在复合体系中,纳米CaCO3和CPE达到了协同增韧PVC的作用,同时,纳米CaCO3具有补强作用,且当母粒的组成为CPE/纳米CaCO3=1∶2时,对PVC改性效果最佳。
聚氯乙烯, 氯化聚乙烯, 纳米碳酸钙, 增强, 增韧
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【期刊论文】Preparation and Characterization of Metallized Polyimide Films Containing Thioether Linkage
武德珍, Dezhen Wu, Fang Song, Zongwu Bai, and Riguang Jin
,-0001,():
-1年11月30日
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【期刊论文】PA6/POE/EAA共混体系的相态与性能的研究
武德珍, 李小梅, 武德珍*, 吴立峰
中国塑料,2002,16(8):27-30,-0001,():
-1年11月30日
采用乙烯212辛烯共聚物弹性体(POE)为增韧剂、乙烯2甲基丙烯酸共聚物(EAA)作为增容剂制备了以尼龙6(PA6)为基体的PA6/POE/EAA共混合金。详细研究了弹性体用量与共混体系的亚微观相态、力学性能和流变性能的关系。结果表明随着弹性体含量的增加,共混体系的分散相粒子尺寸大小没有明显变化,共混体系的冲击强度增加,拉伸强度和弯曲弹性模量降低。弹性体的增加使体系的熔体粘度降低,改善了体系的加工性能,但当POE增加到20%时,随着POE的增加,粘度不再下降。
尼龙6, POE, EAA, 合金, 共混
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武德珍, Dezhen Wu, Xiaodong Wang, Yongzhi Song, Riguang Jin
,-0001,():
-1年11月30日
Nanocomposites of poly (vinyl chloride) (PVC) and nano-calcium carbonate (CaCO3) particles were prepared via melt blending, and chlorinated polyethylene (CPE) as an interfacial modifier was also introduced into the nanocomposites through preparing CPE/nano-CaCO3 master batch. The mechanical properties, morphology, and rheology were studied. A moderate toughening effect was observed for PVC/nano-CaCO3 binary nanocomposites. The elongation at break and Young's modulus also increased with increasing the nano-CaCO3 concentration. Transmission electron microscopy (TEM) study demonstrated that the nano-CaCO3 particles were dispersed in a PVC matrix uniformly, and a few nanoparticles agglomeration was found. The toughening effect of the nano-CaCO3 particles on PVC could be attributed to the cavitation of the matrix, which consumed tremendous fracture energy. The notched Izod impact strength achieved a significant improvement by incorporating CPE into the nanocomposites, and obtained the high value of 745J/m. Morphology investigation indicated that the nano-CaCO3 particles in the PVC matrix was encapsulated with a CPE layer through preparing the CPE/nano-CaCO3 master batch. The evaluation of rheological properties revealed that the introduction of nano-CaCO3 particles into PVC resulted in a remarkable increase in the melt viscosity. However, the viscosity decreased with addition of CPE, especially at high shear rates; thus, the processability of the ternary nanocomposites was improved.
nanocomposites, poly(, vinyl chloride), (, PVC), , morphology, tougheness
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【期刊论文】Monitoring failure behavior of pultruded CFRP composites by electrical resistance measurement
武德珍, Yaqin Mao, Yunhua Yu, Dezhen Wu, Xiaoping Yang
,-0001,():
-1年11月30日
The failure behaviors of unidirectional pultruded carbon fiber reinforced polymer (CFRP) composites were monitored by the electrical resistance measurement during tensile loading, three-point-bending loading, and interlaminar shear loading. The tensile failure behavior of carbon fiber tows was also investigated by the electrical resistance measurement. Infrared thermograph non-destructive evaluation was performed in real time during tensile test of the CFRP composites to validate the change of microdamage in the materials. Experiment results demonstrated that the CFRP composites and carbon fiber tows were damaged in terms of different damage mechanisms during tensile loading. The damage mechanism for the CFRP composites is mainly attributable to matrix damage and the debonding between matrix and fibers, while that for the carbon fiber tows being in the form of fiber fracture. The correlation between the infrared thermographs and the variation in the electrical resistance could be considered as an evidence of the damage mechanisms of the CFRP composites. During three-point-bending loading, the main damage forms were the simultaneous fracture of matrix and fibers firstly, and then matrix cracking and the debonding between matrix and fibers were carried out. During interlaminar shear loading, the variation in the electrical resistance was related to the damage degree of interface structure. Electrical resistance measurement was more sensitive to the damage behavior of the CFRP composites than the stress/time curve.
CFRP (, carbon fiber reinforced polymer), ,, Electrical Resistance Measurement,, Damage Mechanism,, Matrix Cracking,, Debonding.,
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