Journal of Bionic Engineering ›› 2021, Vol. 18 ›› Issue (5): 1192-1201.doi: 10.1007/s42235-021-00079-8
Mechanical and Tribological Study of PVA–pMPDSAH Double-Network Hydrogel Prepared by Ultraviolet Irradiation and Freeze–Thaw Methods for Bionic Articular Cartilage
Junyue Chen1, Lingling Cui1, Chengqi Yan1, Dangsheng Xiong
- School of Materials Science and Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
Mechanical and Tribological Study of PVA–pMPDSAH Double-Network Hydrogel Prepared by Ultraviolet Irradiation and Freeze–Thaw Methods for Bionic Articular Cartilage
Junyue Chen1, Lingling Cui1, Chengqi Yan1, Dangsheng Xiong#br#
- School of Materials Science and Engineering , Nanjing University of Science and Technology , Nanjing 210094 , China
摘要： Hydrogel has been widely used in the research of bionic articular cartilage due to their similarity in structure and functional
properties to natural articular cartilage. In this research, polyvinyl alcohol and betaine monomer were used as raw materials to prepare a high-strength double-network hydrogel by a combination of ultraviolet (UV) irradiation and freeze–thaw
methods. The structure of samples was characterized by Fourier transform infrared spectroscopy and X-ray diff raction,
and the morphology of the samples was characterized by scanning electron microscope and three-dimensional white light
interferometer. In addition, we also studied the swelling ratio, water content, mechanical properties and tribological properties of the samples. We found that the addition of betaine monomer and the UV irradiation time had a positive eff ect on the
mechanical properties and tribological properties of the samples.