Composite preparation of Nanoclay/PDMS from one-step directional crystallization
발표자
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초록
내용
When a material is stretched, usually it becomes thinner in perpendicular, making it easy to be detached when trying to attach on moving things, like human’s body. This study aims to make vertically aligned and auxetic composite materials using DMC (Directional Melt Crystallization) technique. The materials used are nanoclay and PDMS (poly(dimethylsiloxane)), and it was checked if the Poisson ratio becomes 0 by incorporating nanoclays into PDMS, which are elastic and viscoelastic, respectively. The DMC technique is an experiment method that creates an aligned structure by growing solvent crystals in a vertical direction by a temperature gradient. In this study, an emulsion with nanoclay and PDMS uncured resin was prepared and a composite was prepared from the emulsion by using the DMC technique. Pores were successfully introduced too by removing the solvent crystals, resulting in nanoclay/PDMS foams.