Synergistic effect of silane cross-linker (APTEOS) on PVA/gelatin blend films for packaging applications

Abstract

The objective of this work is to fabricate hydrogel films which are biodegradable and also fit for packaging applications. The hydrogel films were prepared by the reaction of polyvinyl alcohol and gelatin with and without 3-aminopropyltriethoxysilane (APTEOS) cross-linker. The hydrogel films were then characterized by FTIR spectroscopy, degree of swelling, TGA, SEM analysis and mechanical testing. The FTIR spectra of the hydrogel films confirmed the presence of both polymers and hydrogen bonding between them. TGA analysis confirmed the increase in thermal stability with the increase of cross-linker amount. SEM analysis confirmed the increase in uniformity of structure with the increase of cross-linker amount. The increase in cross-linker amount resulted in decrease of degree of swelling and increase of tensile strength. The biodegradability of hydrogel films was evaluated by performing soil burial test and found to be decreased with the increase of cross-linker amount. In order to balance the tensile strength and biodegradability, the optimum amount of cross-linker was determined which resulted in the formation of the best performing film. Finally, our best performing film was compared with other hydrogel films reported in the literature. Hence, the hydrogel films cross-linked with APTEOS are biodegradable, having high tensile strength and suitable for packaging purpose.

Polyhexamethylene guanidine hydrochloride‐functionalized wound dressings: Physical, mechanical and biological evaluations

“…The literature reports that various silane crosslinkers have been successfully applied for the preparation of networks from PVA and gelatin. [35][36][37] Therefore, in this work, we applied this methodology to design a novel type of silane crosslinker BDA, were designed to control the concentration of active guanidinium groups, as tabulated in Table 1. 1B).…”

“…Furthermore, crosslinking with appropriate crosslinking agents can control the degree of swelling in aqueous media by blocking some of the hydrophilic functional groups present in the backbone of these materials. The literature reports that various silane crosslinkers have been successfully applied for the preparation of networks from PVA and gelatin 35–37 . Therefore, in this work, we applied this methodology to design a novel type of silane crosslinker containing antibacterial guanidinium moieties to simultaneously enhance the mechanical strength and confer antibacterial activity to the final dressing.…”

Fabrication and properties of graphene oxide and reduced graphene oxide reinforced Poly(Vinyl alcohol) nanocomposite films for packaging applications

“…Because hydrophilic PVA is an environmentally friendly biodegradable polymer, the use PVA as packaging material offers a solution to the accumulation of solid waste. 25,26 In addition, PVA comes to the fore in packaging films due to its non-toxic, high adhesion strength and antistatic properties. 27,28 However, PVA has relatively low strength and thermal stability for some applications.…”

Investigation on the Composition of Agarose–Collagen I Blended Hydrogels as Matrices for the Growth of Spheroids from Breast Cancer Cell Lines

“…Pharmaceutics 2021, 13, 963 2 of 22 Among 3D biomaterials, hydrogels of complex biological origin have been used in many studies [6][7][8]. The most common are Matrigel™, derived from Engelbreth-Holm-Swarm mouse tumor sarcoma, and other basement membrane-rich matrices.…”