Preparation and properties of silicone rubber materials with foam/solid alternating multilayered structures

Abstract In this paper, silicone rubber materials with foam/solid alternating multilayered structures were successfully constructed by combining the two methods of hot-pressing and supercritical carbon dioxide (SCCO 2 ) foaming. The cellular morphology mechanical properties systematically studied. results show that growth cell was restrained solid layer, resulting in a decrease size. addition, introduction layer effectively improved microcellular foam. tensile strength compressive reached 5.39 1.08 MPa, which are 46.1% 237.5% pure foam, respectively. Finite element analysis (FEA) applied indicate proportion played important roles materials. Moreover, small foam can provided high supporting counterforce during compression, meaning structure property compared to for large