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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical and dielectric properties of polymer composites containing tubules
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Mechanical and dielectric properties of polymer composites containing tubules

机译：含细管的聚合物复合材料的机械和介电性能

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The thermal, dynamic mechanical, and dielectric properties of copper-coated lipid tubules incorporated into three polyurethane matrices with varying surface tensions have been examined. The tubules did not affect the glass-transition temperature of the polymer matrices, indicating that the tubule-polymer interactions may not be strong enough to restrict the mobility of polymer chains near the filler surface. The composite's elastic modulus can also be adequately modeled using the Nielsen equation. In addition, the real part of the permittivity for the composites increased monotonically over the tubule concentration range. All samples had a small imaginary part of the permittivity, indicating the tubule concentrations were below the percolation threshold concentration. Also, the three types of matrices had comparable permittivity values at each tubule concentration, suggesting the polymer surface tension did not affect the tubule distribution in the composite. (C) 2003 Wiley Periodicals, Inc. [References: 21]
机译：已经研究了掺入具有不同表面张力的三种聚氨酯基体中的铜包覆脂质小管的热，动态机械和介电性能。小管并没有影响聚合物基质的玻璃化转变温度，表明小管与聚合物的相互作用可能不足以限制聚合物链在填料表面附近的迁移。复合材料的弹性模量也可以使用尼尔森方程进行适当建模。另外，复合材料的介电常数的实部在细管浓度范围内单调增加。所有样品的介电常数均很小，表明微管浓度低于渗滤阈值浓度。同样，三种类型的基质在每种微管浓度下均具有可比较的介电常数，表明聚合物表面张力不会影响复合物中微管的分布。 （C）2003 Wiley Periodicals，Inc. [参考：21]

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