Measuring methods of surface resistivity for glass substrates 玻璃衬底表面电阻率试验方法
Measurement Method and Influence Factors of Surface Resistivity of Dielectric in Vacuum Environment 真空环境下电介质表面电阻率测试方法及其影响因素
The application of surface resistivity to the correction of magnetotelluric static migration 利用地表电阻率校正大地电磁静态偏移
Semi-rigid polyvinyl chlorid ( PVC)/ carbon black ( CB) composites were prepared, their properties were studied by SEM, stress-strain behavious, surface resistivity, DMA and Vica soften temperature tests. 通过SEM、拉伸断裂行为、表面电阻、DMA(动态热机械分析)和维卡软化温度测试,研究了半硬质PVC/炭黑(CB)材料力学性能、电性能、热性能和微观形态。
However, because of ultra-high bulk resistivity and surface resistivity of PE and PP materials, the articles made of PP or PE have notorious static problem. 由于PE和PP具有极高的体积电阻率和表面电阻率而导致静电荷的积累,因此在使用中经常发生静电危害。
Along with the increase of metal Nickel deposition, the surface resistivity of nickel-plated veneers decreases, while its conductivity increases and have anisotropy. 随着金属镍沉积量的增加,化学镀镍单板的表面电阻率下降,导电性增加,化学镀镍单板的导电性具有各向异性。
To minimize these hazards, the surface resistivity of materials will be generally limited below 10~ ( 12)Ω/ sq. 为消除静电危害,工业上一般将材料的表面电阻率限制在10~(12)Ω/sq.以下。
The design and analysis of a low sidelobe Cassegrain antenna using resistive hyperboloid are presented in detail. The surface resistivity of hyperboloid can be expressed in terms of the target low sidelobe aperture distribution. 本文用沿径向有阶梯变化的表面电阻的双曲面来设计低旁瓣卡塞格伦天线,给出了双曲面表面电阻值与所需的低旁瓣口径场分布理论值的关系式。
Study on the test method of polymer surface resistivity 聚合物表面电阻率测试方法研究
The surface of the complex membrane had a certain hydrophilic property and its surface resistivity was 107 Ω· cm under the conditions of 20-30 ℃ and 60%-80% air humidity after drying for 2-4 hours. 复合膜表面具有一定的亲水性,烘干后置于20-30℃、湿度60%-80%的空气中2-4h后,复合膜表面电阻率降低到了107Ω·cm。
When coating surface resistivity test on a longer pipeline is conducted, the pipeline can be divided into several sections to calculate it with polarization potential and current density. 在对长管道的涂层面进行电阻率测量时,可将管道分成若干段,通过极化电位和电流密度对涂层电阻车进行计算。
Study of Surface Resistivity Modification in Al_2O_3 Ceramics by Fe~ ( 2+) ions Implantation Fe离子注入Al2O3陶瓷改变其表面电阻率的研究
This paper discusses the test methods of volume resistivity or surface resistivity of satellite surface materials. A measuring electrodes system is designed to measure the volume resistivity or surface resistivity of typical thermal control coatings and the effects of measuring volts on the results are studied. 对卫星表面材料的体电阻率、面电阻率的测试方法进行了研究,并设计了测量电极系统,测量了常用热控涂层的体、面电阻率,研究了测量电压对测量结果的影响。
The impact strength of the composite was improved by about 30%, and the volume and surface resistivity were enhanced about ( 8 times) and 12 times, respectively. 材料的体积电阻系数和表面电阻系数约分别提高8倍和12倍。
Test Method for Surface Resistivity of Coating 涂层面电阻率的测试方法
However, the surface resistivity of PVC materials is high to 10~ ( 14)~ 10~ ( 17)Ω It is easy to produce static electronic, which can lead to fire, explosion in many fields and the invalidation of electronic component. 然而软质PVC材料表面电阻率高达10~(14)~10~(17)Ω,容易产生静电,可导致化工库、油库、煤矿等起火爆炸和电子元器件失效等事故。
Effects of conductive and glass phases as well as additives on surface resistivity, it's temperature coefficient ( TCR) and stability of multilayer wiring dielectric surface are researched and mechanism of resistance floatation due to interaction between dielectric and resistive layers is analyzed. 研究了导电相、玻璃相和添加剂对多层布线表面电阻的方阻、温度系数和稳定性的影响,分析了介质层与电阻层之间的相互作用而导致电阻阻值变化的机理。
Reduction of the volume resistivity or surface resistivity can be achieved through the following ways: addition of antistatic fillers, addition of antistatic agents and use of conductive polymer film former. 降低涂层的体积电阻率或表面电阻率,可采用三种途径:添加导电填料,加入抗静电剂,利用具有本征导电功能的高聚物成膜物质。
Influence of Amount of Conductive graphite and Application Technology on Surface Resistivity of Coatings Film 导电石墨用量及施工工艺对涂层表面电阻率的影响
Contact Surface Resistivity Its Effect on Shielding Effectiveness 接触表面电阻率及其对屏蔽效能的影响
For the method to measure the coating surface resistivity with the current-cut-off method, the author puts forward his own concept and suggests that the pipe/ soil potential should be measured with 10 M Ω digital meter. 对采用断电法测试涂层面电阻率的方法提出了不同意见,建议使用阻抗为10MΩ的数字仪表对管/地电位进行测量。
Antistatic properties of carbon black ( CB) filled plasticized poly ( vinyl chloride) ( PVC) were studied using surface resistivity tester and SEM. 采用表面电阻测试和扫描电镜,分析研究了软质聚氯乙烯(PVC)树脂与炭黑(CB)复合体系的抗静电性与炭黑含量、分布形态、PVC树脂型号及混炼塑化工艺之间的关系。
As the surface resistivity of the coating changes with temperature and humidity, so during the anti-static packaging testing and applications, the effects of temperature and humidity should be concerned. 由于涂层随温、湿度变化而变化,因此在进行防静电包装测试及应用场合要考虑到温、湿度的影响。
Then, the surface tension, the mechanical properties, thermodynamic proper& ties and surface resistivity of modified LDPE had been tested. 其次,本文将制备的纳米二氧化硅/EVA复合改性剂加入到低密度聚乙烯中,对其表面张力、力学性能、热力学性能、表面电阻率、摩擦性能等进行了测试。
Finally, the as-synthesized graphenes were dispersed into epoxy resins by sonication in ice bath and the effect of curing time, reducing agent and reducing time on the surface resistivity of coating were also investigated. 最后,本文通过超声辅助分散的方法将所得的改性石墨烯分散在环氧树脂中制备了抗静电涂层,并研究了固化时间、还原剂、还原时间等因素对涂层表面电阻率的影响。
The conductive paper prepared in this study had low surface resistivity, good conductive stability and the cost could be reduced. 本研究制备的聚吡咯/纸浆纤维导电纸,成本节约、表面电阻率低,具有较好的导电稳定性。
The research discovered that the surface resistivity of conductive paper did not decrease linearly as the amount of pyrrole increased. The amount of pyrrole during conductive paper manufacture can be reduced by using chemical vapor-deposition as well as keeping good electrical conductivity. 研究发现,导电纸的表而电阻率并不随着吡咯用量的增加而呈线性降低,采用气相化学沉积法能够在保持良好导电性能的基础上,减少导电纸中吡咯的使用量。
As the humidity changes, the surface resistivity increased. Finally, a method of anti-static packaging design based on anti-static packaging theory was discussed. 随湿度的变化趋势则是逐渐升高的。最后,基于电子产品的防静电包装原理,探讨了一种防静电包装设计方法。