| 초록 |
The adoption materials for epidermal second skin have some issues including biocompatibility, skin-adherence and proper mechanical properties. On the basis of the above issues, Polydimethylsiloxane (PDMS) was prepared for second skin matrix because of its mechanical flexibility and biocompatibility. To overcome relatively low mechanical strength of PDMS, cellulose nanofiber (CNF), which possess excellent physical properties, was incorporated. The mechanical strength of PDMS matrix was enhanced with different contents of CNF. On the contrary, the adhesion of PDMS/CNF composites were decreased with increasing CNF contents. To solve this problem, silylated CNF (MCNF) and polyethylenimine (PEIE) were chosen. For investigating effects of MCNF and PEIE, a series of PDMS/CNF composite materials were investigated with SEM, crosslinking density, tensile properties and tack strength. Based on these results, it could be expected these PDMS-based materials were suitable for using second skin. |
