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New Insights into the Application of Biocompatible (Un)Modified TiO2 and TiO2-ZrO2 Oxide Fillers in Light-Curing Materials

Authors :
Katarzyna Siwińska-Ciesielczyk
Angelika Andrzejczak
Teofil Jesionowski
Łukasz Gierz
Agnieszka Marcinkowska
Mariola Robakowska
Source :
Materials, Vol 17, Iss 12, p 2908 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

A novel UV-light-curable poly(ethylene glycol) diacrylate matrix composite material with unmodified and methacryloxyl-grafted TiO2 and TiO2-ZrO2 systems was developed and tested as a potential coating material for medical components. The main goal of the research was to evaluate how the addition of (un)modified inorganic oxide fillers affects the properties of the composition (viscosity, UV/Vis spectra), the kinetics of photocuring (photo-DSC), and the morphological (SEM), physicochemical, and thermal properties (DSC, TGA) of the resulting composites. The applied filler functionalization process decreased their polarity and changed their size, BET surface area, and pore volume, which influenced the viscosity and kinetics of the photocurable system. In addition, the addition of synthesized fillers reduced the polymer’s glass transition temperature and increased its thermal stability. It was also observed that additional UV irradiation of the tested composite changed its surface, resulting in hydrophobic properties (with the addition of 7 wt.% filler, an increase in the contact angle by more than 45% was observed).

Details

Language :
English
ISSN :
19961944
Volume :
17
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Materials
Publication Type :
Academic Journal
Accession number :
edsdoj.5f138504b834f45a21b15f75bd08882
Document Type :
article
Full Text :
https://doi.org/10.3390/ma17122908