Abstract
Abstract Antibacterial materials have found widespread interest in different fields nowadays. In this study, curcumin (Cur) was incorporated into the polyvinyl butyral (PVB) matrix by dissolving in ethanol for improving the functional properties of a pure PVB film. We found that Cur was uniformly dispersed in the PVB matrix, which showed good compatibility. Moreover, the incorporation of Cur could also improve thermal stability, hydrophilicity, and mechanical property. The UV-vis spectra of the PVB–Cur film demonstrated that the film could block ultraviolet radiation. Subsequently, the antibacterial activity of the PVB–Cur film was measured by the colony-counting method against S. aureus and E. coli. The results showed that the PVB–Cur film exhibited good antibacterial activity. Therefore, the PVB–Cur film was considered as a promising material for food and medical packaging applications.
Highlights
IntroductionVarious films, especially the antimicrobial films, have been rapidly developed
In recent years, various films, especially the antimicrobial films, have been rapidly developed
The in vivo wound healing test showed that the Cur–MPEG–chitosan film was effective in wound healing [22]
Summary
Various films, especially the antimicrobial films, have been rapidly developed. The composite films containing Cur exhibited good mechanical properties, thermal stability and antibacterial activity, which could be applied in food packaging and medical fields [20]. 674 Yanchao Qiao and Lijie Duan with excellent mechanical property, optical clarity, biocompatibility, nontoxicity, and adhesive property [24,25] In this investigation, we incorporated Cur into the PVB matrix using ethanol as solvent to fabricate Cur-loaded films [26,27,28,29,30,31]. The resultant PVB–Cur film exhibited thermal stability, high hydrophilicity, excellent mechanical strength, UV resistance, and antibacterial activity, which implied the potential applications in food packaging and medical fields
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