体积电阻率

当导电纤维含量达到5wt%时，此时复合材料的体积电阻率为0.43Ω·cm，具有较好的电磁屏蔽能力。

When conductive fiber content reaches 5 wt % , the volume resistivity of composite is 0.43 Ω· cm and have good effectiveness for shielding EMI .

HTPB推进剂的击穿电场强度随体积电阻率的增加而升高，随介电常数的增加而降低。

The dielectric strength of HTPB propellant increases with increasing volume resistivity or decreasing dielectric coefficient .

其体积电阻率p降低约一个数量级，但只比1%（质量分数）Sft/PVA膜的p略有降低。

The resistivity decreased approximately one order of magnitude .

导电性能优异，当石墨添加量的质量分数为1%时，体积电阻率只有20Ωcm。

The electrical conductivity reached to 20 Ω cm when the graphite content was 1wt % .

优选出了硬度70左右的胶料，其体积电阻率为2.22Ω·cm。

The compound with hardness of about 70 optimally seeked has 2.22 Ω . cm of bulk resistivity .

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。

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 .

按所求得工艺条件可制得体积电阻率≥5×1012Ωcm的产品，优级品率可达95%。

The high grade product with the volume resistivity more than 5 × 10 12 Ω cm can be obtained . The yield ratio of it was 95 % .

结果表明，含有聚乙二醇（PEG）柔性链段、同时添加第三单体的共聚醚酯和无机盐的复合物，具有较低的玻璃化温度，从而体积电阻率较低。

Obtained results indicate that the complexes prepared from copolyether ester consisting PEG and other third monomer with ion inorganic salt have lower glass transition temperature T g.

本文就聚丙烯（PP）充填黄铜纤维导电性复合材料的屏蔽性能及黄铜纤维充填率与体积电阻率变化的关系进行了研究，并对电磁波屏蔽效果进行了测定。

The shielding property of PP conductive compound filled with brass fiber , and the relation between the filling ratio of brass fiber with the change of volume resistance were studied .

这为解决高分子PTC材料中室温体积电阻率高与PTC强度低的矛盾提供了一条新的途径。

A new method was offered for solving the contradictory of high room temperature bulk resistivity and low PTC intensity of polymeric PTC material by this .

此种玻璃在100℃时体积电阻率为10~（15）Ω·cm，介电损耗为4.1×10~（-3）。

The volume electrical resistivity ( at 100 ℃) of the phlogopite based glass-ceramics is 10 ~ ( 15 ) Ω . cm . The dielectric loss is 4.1 × 10 ~ ( - 3 ) .

第3组分的加入显著提高了填充体系的导电性能，体积电阻率从3.9×1016Ω·cm下降到1.5×1015Ω·cm。

With the adding of the third component , the electrical conductivity was improved obviously , volume resistivity was decreased from 3 . 9 × 1016 μ· cm to 1 . 5 × 1015 μ· cm .

8wt%EG含量下，前者的室温体积电阻率仅3.81×10~7Ωcm，而后者的为3.22×10~（16）Ωcm。

At EG content of 8 wt % , the volume resistivity at room temperature of the former was only 3.81X 107 ? cm , whereas that of the latter was 3.22 X 1016 ? cm .

复合材料低温下（77K）的体积电阻率明显高于纯SP，可以看作是库仑阻塞作用的结果。

Resistivity of the composite is much greater than that of pure SP under cryogenic temperature ( 77K ), which is called Coulomb Blockade Effect .

与纯PI薄膜相比，Al2O3含量不大于5%时，纳米复合薄膜的表观分解温度、拉伸强度以及常态下的体积电阻率均有明显提高；

Compared with the pure polyimide films , the apparent decomposition temperature , tensile strength and volume resistivity at normal conditions increased remarkably when the alumina content was not more than 5 % ;

阻燃抗静电改性后UHMWPE的氧指数可提高84%，体积电阻率可以降到2.1×103Ω·cm；

The oxygen ( indexes ) of UHMWPE modified by flame retardant and antistatic are improved 84 % , and surface ( resistivity ) reduces to 2.1 × 10 ~ 3 Ω· cm .

研究了PTC陶瓷粉末掺杂高分子PTC材料的电性能，发现掺杂后复合材料的室温体积电阻率降低、PTC强度增加。

The electrical properties of polymeric PTC material filled by PTC ceramics powders were researched , it is found that its ′ room-temperature bulk resistivity decreasing and the PTC intensity increasing .

在HG－4型炭黑含量为7份时，材料的拉伸强度13MPa，断裂伸长率350%，体积电阻率为2.1Ω·cm。

When the content of carbon black HG 4 was 7 phr , the tensile strengh of the composite was 13 MPa , elongation at break was 350 % and volume conductance was 2.1 Ω· cm .

结果表明，室温下，当CNTs质量分数为5%时，复合材料的体积电阻率比纯TPI下降了7个数量级，达到6.07×108Ω.cm；

The results showed that the bulk resistivity of composites decreased by 107 times to 6.07 × 108 Ω· cm with adding mass fraction of 5 % of CNTs .

以廉价的偏钛酸为原料，在高温下进行N掺杂，制备了具有良好导电性能的TiO2粉，950℃焙烧3h后，体积电阻率低达6.5×10-3Ω。

Conductive TiO_2 powder was prepared using H_2TiO_3as reactant doped with nitrogen at high temperature . The volume resistivity could be as low as 6.5 × 10 - 3 Ω· cm after reaction for 3h at 950 ℃ .

虽然GF为导电惰性填料，但因其加入起到了占位作用，明显提高了导电填料的有效浓度，从而使复合材料的体积电阻率明显降低。

Although GF is electrically inert , its presence can increase the effective concentration of the conductive filler by holding up some space , therefore the conductivity of the material increases .

结合材料导热计算模型，分析了AlN含量对材料热导率、体积电阻率、力学以及流变性能的影响。

The effects of AlN content on the thermal conductivity , volume resistance , mechanical properties and rheological behavior of the AlN / FEP composites were investigated based on a thermal conducting model .

硫化胶体积电阻率随硫化时间延长和施加负荷的增大而降低，随温度升高和增塑剂DOP用量增大而升高。

The electric volume resistivity of vulcanizate decreased as the cure time and the applied load increased , and increased as the temperature and the level of plasticizer DOP increased .

结果表明：导电介质在基体材料中高度分散，复合材料的体积电阻率小于01Ω·cm，组装的单体电池的充放电能量效率为845%。

The results showed that conductive medium dispersed highly in the blended polymer and the volume resistance of the material was below ( 0.1 Ω· cm . ) The energy efficiency of single vanadium redox flow battery assembled with the composite was 84.5 % .

EVA的添加量在10phr之内，绝缘料的MFR、介电强度、热延伸性能、断裂伸长率、体积电阻率、交联度满足技术指标要求；

When EVA content is within 10 phr , the PE insulant 's MFR , dielectric strength , thermal extensibility , elongation at break , volume resistivity and crosslinkage can meet the technical requirements .

本文研究了JHF和JH型抗静电剂对RTM专用树脂粘度、凝胶时间及RTM成型FRP制品的体积电阻率和弯曲性能的影响。

The influence of JH and JHF on the viscosity and gel time of the resin in RTM as well as the volume resistivity and flexural properties of FRP are studied .

将改性鱼油加入PP后，可降低PP的体积电阻率和表面电阻率，且PP的拉伸强度变化不大，冲击强度略有提高，因而改性鱼油可作为PP的抗静电剂使用

And the addition of modified fish oil could reduce the volume resistivity and surface resistance of PP , resulted in a little change of the tensile strength but some increase of impact strength of PP Modified fish oil could be used as a kind of better antistatic agent for PP

从分析结果来看，加入DBDS的油样，在一定程度上也降低了油的绝缘性能，其体积电阻率、介质损耗均略有降低。

The results show that in some extent the insulation property would lower and the volume resistivity and dielectric losses decrease in the samples adding DBDS .

按照该配方生产的复合材料包装箱的体积电阻率达6.7MΩ.cm，弯曲强度保留80%以上，满足包装箱使用要求。

The volume resistivity of the composite package case is 6.7M Ω· cm and retention of FRP flexural properties of is more than 80 % .

一种铜粉导电胶，由E51环氧树脂、密胺-脲醛树脂MF，铜粉及少量添加剂组成，固化温度为100℃，体积电阻率≤3.6×10-3Ω·cm，该导电胶可应用在电子工业中。

The electroconductive adhesive is composed of epoxy resin ( E51 )、 copper powder and a small amount additive , Its curing temperature is at 100 ℃, Its resistivity is ≤ 3.6 × 10-3 Ω· cm . The adhesive can be applied for electron industry .