| 초록 |
In the encapsulation system used for self-healing, mechanical and thermal stabilities of capsules are required. Poly(melamine-urea-formaldehyde) (MUF) capsules used as self-healing component of composites are prepared by in-situ polymerization in an oil-in-water emulsion. These capsules are resynthesized with melamine-urea-formaldehyde and coated by silica for increasing stability and dispersibility of capsules. In this study, we prepare the multi-walled, silica coated MUF capsules and investigate the effect of multi-walled capsules properties using TGA, H-NMR, FT-IR and optical microscope(OM). To observe the effect of silica coated MUF capsules in liquid silicone rubber (LSR), we compared to standard MUF capsules. |
