论文标题
基于聚苯乙烯的纳米复合材料中非线性弹性模量的相对变化
Relative variations of nonlinear elastic moduli in polystyrene-based nanocomposites
论文作者
论文摘要
在本文中，我们基于对静态应力下声波速度变化的分析进行应用，以测量具有不同填充剂的三种基于聚苯乙烯的纳米复合材料中的三阶弹性模量：SIO2颗粒，Halloysite天然小管和碳黑色颗粒。样品是通过相同技术制造的，我们的数据提供了有关通过添加填充剂引起的复合材料非线性性质的相对变化的信息。将复合材料获得的数据与商业级聚苯乙烯进行了比较。证明并分析了具有不同类型填充剂的复合材料的非线性弹性模量的实质变化。结果与理论预测达成了定性协议。
In this paper we apply the methodology based on the analysis of changes in acoustic wave velocities under static stress for measurements of the third-order elastic moduli in three polystyrene-based nanocomposites with different fillers: SiO2 particles, halloysite natural tubules, and carbon black particles. The samples were fabricated by the same technology and our data provide information on relative changes of nonlinear properties of the composites caused by addition of the fillers. The data obtained for composites are compared with that for commercial grade polystyrene. The substantial variations of the nonlinear elastic moduli for composites with different types of fillers are demonstrated and analyzed. The results are in a qualitative agreement with theoretical predictions.
