| abstract |
The invention belongs to technical field of composite materials, discloses a kind of Nanometer composite hydrogel based on carboxymethyl xylan and preparation and application.The preparation method is：Graphite oxide powder is added in deionized water, ultrasonic disperse obtains GO aqueous dispersions；By monomeric acrylamide, carboxymethyl xylan is added in GO aqueous dispersions, is dispersed with stirring uniformly, under condition of ice bath, is added initiator, crosslinking agent and accelerator, is uniformly mixed to obtain mixed solution；Mixed solution is reacted into 2~6h in 50~80 DEG C of drying, obtains hydrogel；Hydrogel is finally immersed into Al (NO 3 ) 3 Crosslinking is soaked in solution, obtains the Nanometer composite hydrogel based on carboxymethyl xylan.Gained composite aquogel of the invention has compared with high-mechanical property, at the same it is biodegradable, there is good biocompatibility, biomedical sector is can be applicable to, such as organizational project, medicament slow release, cell culturing bracket and cartilaginous tissue etc.. |