The Effect of Graphitic Carbon Nitride Crosslinking of Polyvinyl Alcohol Hydrogels

Document Type

Student Presentation

Presentation Date



College of Engineering


Mechanical and Biomedical Engineering

Faculty Sponsor

Trevor Lujan


Polyvinyl alcohol hydrogels are often used in wound healing because of their biocompatibility, and their hydrophilic nature, however; Issues may develop from the hydrogels specific mechanical properties. The material may be too strong, causing atrophy of surrounding tissues from stress shielding, or too weak not serving its purpose in healing or resulting in material failure. In this study, PVA films have been introduced with a new photoactive agent in order to create a non toxic electrostatic cross-linked polymer. The objective of this study is to determine the mechanical effects of cross linking PVA based films with varying amounts of graphitic carbon nitride (g-C3N4). Films were cross linked with 0, 50, 75, and 100 mg of g-C3N4. The films were then pulled to failure, in tension, in order to measure mechanical properties. The study shows that the material properties of the polyvinyl alcohol hydrogels are dependent on the concentration of g-C3N4

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