Experiment Research on the Mechanical Property of Micron Particles Filled Silicone Rubber Material

Abstract

Abstract:Six kinds of different content of micron solid particles of silicone rubber materials were prepared by mixing micron Al 2 O 3 , SiO 2 , cross-linking agent, and catalyst, etc. into the matrix material of micron-sized hydroxyl-terminated polydimethylsiloxane. The effect of micron solid particles on the mechanical property of silicone rubber was examined by the uniaxial tensile tests. Non-contact strain test system was adopted to measure the strain response of the samples in the experiments. The results show that, the mechanical property of silicone rubber material is rate-dependent, presenting a hyper-elastic property, which is similar to rubber-like material. The strength of the granular filled material increased with the content of the solid particles, moreover, the enhancement effect caused by SiO 2 was stronger than that caused by Al 2 O 3 .`