Bionanocomposite films containing halloysite nanotubes and natural antioxidants with enhanced performance and durability as promising materials for cultural heritage protection

Giulia Infurna, Nadka Tzankova Dintcheva, Giuseppe Lazzara, Giuseppe Cavallaro, Stefana Milioto, Stefana Milioto, Nadka Tzankova Dintcheva, Giulia Infurna, Giuseppe Cavallaro, Giuseppe Lazzara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In the last decade, the interest toward the formulation of polymer films for cultural heritage protection continuously grew, and these films must be imperatively transparent, removable, and should not react/interact with surface of the artworks. In this research, bionanocomposite films, based on chitosan (Ch) and pectin (P) and containing naturally occurring fillers and antioxidants, were formulated by solvent casting methods and were accurately characterized. The natural halloysite nanotubes (HNT) have a two-fold role, specifically, physical compatibilizer and antioxidant carrier. Therefore, the theoretical solubility between Ch and P was estimated considering Hoy's method for solubility of polymers, while the optimum ratio between biopolymer constituents was assessed by ζ-potential measurements. The transparency, wettability, and mechanical behavior of Ch:P films, also in presence of HNT without and with antioxidants, were investigated. The beneficial effects of natural antioxidants, such as vanillic acid (VA) and quercetin (Q), on Ch:P/HNT durability were found.
Original languageEnglish
Pages (from-to)1-16
Number of pages16
JournalPolymers
Volume12
Publication statusPublished - 2020

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Polymers and Plastics

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