초록 |
Recently, research about hydrogels is progressing rapidly. It is important to make hydrogels adhere to hydrogels or biotissues easily and firmly when we use them as artificial muscle, cartilage and other artificial tissues. In this research, we studied about adhesive hydrogel systems utilizing layered inorganic compounds entrapping various guest molecules into their interlayers (Intercalation). We created hydrogel materials having cationic substituents, which are entrapped into interlayers, in their polymer networks. An aqueous dispersion of layered inorganic compound, mica, was applied onto the surface of hydrogels, and hydrogels were attached closely. Consequently, hydrogels adhered strongly due to the intercalation of cationic substituents into interlayers of mica. The resultant adhered hydrogels did not segregate even when 10 kg of weight was hung to adhered hydrogels. Furthermore, the adhesive joints showed high environmental tolerance. |