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首页> 外文期刊>Journal of Applied Polymer Science >Development of novel functional conducting elastomer blends containing butyl rubber and low-density polyethylene for current switching, temperature sensor, and EMI shielding effectiveness applications
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Development of novel functional conducting elastomer blends containing butyl rubber and low-density polyethylene for current switching, temperature sensor, and EMI shielding effectiveness applications

机译：研发出新型的功能性导电弹性体混合物，其中包含丁基橡胶和低密度聚乙烯，可用于电流开关，温度传感器和EMI屏蔽效果应用

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A new class of functional conductive butyl rubber (IIR) with different loadings of low-density polyethylene (PE) was prepared by roll mixing in a milling at a rotor speed of 24 rpm. To understand the filler dispersion and filler/matrix interaction, the network structure of the specimens was examined by evaluating of the crosslinking density, volume fraction of elastomer, interparticle distance among conductive phases, interfacial area per unit volume, torque rheometer, hardness, tensile strength, elongation at break, X-ray, glass transition temperature, thermal gravemetry, differential scanning calorimetry, degree of crystallinitv, and SEM microanalysis. Static conductivity, mobility carrier's concentration, number of charge carriers, and thermoelectric power as a function of PE content were investigated. The temperature dependence of the electrical conductivitv as well as the conduction mechanism of IlR-PE blends were also analyzed. The isothermal resistance stability test was examined by displaying the resistance-time curve at certain temperatures. Them relationship between current and DC applied voltage was measured for all samples. The self-electrical heater with PE content of 10 wt % exhibited the highest nonlinearity. The thermal stability was tested by means of temperature-time curve at certain applied power, on and off, for two cycles. Dielectric constant and relative loss factor of the blends are reported. The applicability of the rubber system for switching current, temperature sensor, and electromagnetic shielding effectiveness (EMT) was examined. The experimental results of EMT were compared with theoretical predictions. The results of the present study indicate that these blends are suitable for switching current, temperature-sensitive sensor, and EMT shielding effectiveness applications with good thermal stability for consumer products. (c) 2005 Wiley Periodicals, Inc.
机译：通过以24 rpm的转子转速在研磨中进行辊混，制备了具有不同负载量的低密度聚乙烯（PE）的新型功能性导电丁基橡胶（IIR）。为了了解填料的分散性和填料/基体之间的相互作用，通过评估交联密度，弹性体的体积分数，导电相之间的颗粒间距离，每单位体积的界面面积，扭矩流变仪，硬度，拉伸强度来检查样品的网络结构，断裂伸长率，X射线，玻璃化转变温度，热重力法，差示扫描量热法，结晶度和SEM微分析。研究了静态电导率，迁移率载体的浓度，电荷载体的数量和热电功率与PE含量的关系。还分析了电导率的温度依赖性以及IlR-PE共混物的导电机理。通过显示某些温度下的电阻-时间曲线来检查等温电阻稳定性测试。测量所有样品的电流和直流施加电压之间的关系。 PE含量为10 wt％的自电加热器表现出最高的非线性度。通过温度-时间曲线在一定的施加功率下，接通和关断两个周期来测试热稳定性。报告了共混物的介电常数和相对损耗因子。检查了橡胶系统在切换电流，温度传感器和电磁屏蔽效能（EMT）方面的适用性。将EMT的实验结果与理论预测进行了比较。本研究结果表明，这些混合物适用于开关电流，温度敏感传感器和EMT屏蔽效能应用，对消费类产品具有良好的热稳定性。 （c）2005年Wiley Periodicals，Inc.

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