Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (9): 2078.doi: 10.7503/cjcu20200245

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Properties of Polyvinye Alconol/Polyvinylpyrrolidone/Iodine Composite Hydrogels

GONG Yuning, WANG Qi, WANG Honglei, GUAN Shuang()   

  1. College of Chemistry and Biology, Changchun University of Technology, Changchun 130021, China
  • Received:2020-04-29 Online:2020-09-10 Published:2020-09-02
  • Contact: GUAN Shuang E-mail:guanshuang@ccut.edu.cn
  • Supported by:
    Supported by the Natural Science Foundation of the Technology Department of Jilin Province, China(20190201078JC)

Abstract:

A low-temperature freezing method was used to prepare a PVA/PVP-I composite hydrogel with adjustable mechanical properties by changing the ratio of PVA and iodophor(PVP-I), the freezing time, and the number of freeze-thaw cycles. The mechanical properties, microstructure, iodine release and bacteriostatic property of the composite gel were characterized. The results show that the controllable mechanical properties of the PVA/PVP-I composite hydrogel can meet the demand for wound dressing; the network structure of the composite hydrogel can effectively reduce the decomposition rate of iodine under ultraviolet rays, and achieve sustainable release of iodine, thereby exerting antibacterial properties, broadening the scope of application of iodine disinfectants.

Key words: Polyvinyl alcohol, Iodophor, Hydrogel, Iodine release

CLC Number: 

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