Preparation And Characterization Of Polyvinyl Alcohol Composites Gel

Polyvinyl alcohol has excellent water-soluble,biocompatibility,biodegradability,viscoelastic nature because of its special chemical structure.Polyvinyl alcohol composite hydrogel has widely application in bio-medicine,supercapacitor,new energy,etc.In this paper,polyvinyl alcohol and conducive polymer was combined to form a double-network structure,by freeze-thaw method,which can enhance the performance of hydrogel.The investigation mainly consist the three parts:(1)The three-dimensional polypyrrole/polyvinyl alcohol composite gel was prepared.The mechanical properties,electrical properties,electrically controlled drug delivery were studied in detail.The composite hydrogel has excellent mechanical performance,self-healing property,stable of capacitor,amount of drug release,etc.(2)The three-dimensional polypyrrole/chitosan/polyvinyl alcohol composite gel was prepared.The mechanical properties,electrical properties,electrically controlled drug delivery,antibacterial property were studied in detail.The composite hydrogel has excellent mechanical performance,self-healing property,stable of capacitor,amount of drug release,anti-staphylococcus etc.(3)The three-dimensional graphene/poly(glutaraldehyde-pyrrole)/polyvinyl alcohol composite gel was prepared.The mechanical properties,electrical properties were studied in detail.The composite hydrogel has excellent mechanical performance,capacitive properties etc.