Synthesis and characterisation of microcapsules for self-healing dental resin composites

The purpose of this study was to i) synthesise TEGDMA-DHEPT microcapsules in a laboratory setting; ii) characterise the resultant microcapsules for quality measures. Microcapsules were prepared by in situ polymerization of PUF shells. Microcapsules characterisation include size analysis, optical and...

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Published in:BMC oral health 2024-01, Vol.24 (1), p.109-109, Article 109
Main Authors: Althaqafi, Khaled Abid, Satterthwaite, Julian, AlShabib, Abdulrahman, Silikas, Nikolaos
Format: Article
Language:English
Subjects:
Aqueous solutions
Capsules
Catalysts
Composite materials
Composite Resins
Crack propagation
Dental cement
Dental composite
Dental restorative materials
Emulsion polymerization
Fractures
Humans
Microcapsules
Morphology
Nanoparticles
Polyethylene Glycols
Polymerization
Polymers
Polymethacrylic Acids
Resin composite
Self-healing
Spectroscopy, Fourier Transform Infrared
Surfactants
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creator Althaqafi, Khaled Abid
Satterthwaite, Julian
AlShabib, Abdulrahman
Silikas, Nikolaos
description The purpose of this study was to i) synthesise TEGDMA-DHEPT microcapsules in a laboratory setting; ii) characterise the resultant microcapsules for quality measures. Microcapsules were prepared by in situ polymerization of PUF shells. Microcapsules characterisation include size analysis, optical and SEM microscopy to measure the diameter and analyse the morphology of PUF microcapsules. FT-IR spectrometer evaluated microcapsules and benzyl peroxide catalyst polymerization independently. Average diameter of TEGDMA-DHEPT microcapsules was 120 ± 45 μm (n: 100). SEM imaging of the capsular shell revealed a smooth outer surface with deposits of PUF nanoparticles that facilitate resin matrix retention to the microcapsules upon composite fracture. FT-IR spectra showed that microcapsules crushed with BPO catalyst had degree of conversion reached to 60.3%. TEGDMA-DHEPT microcapsules were synthesised according to the selected parameters. The synthesised microcapsules have a self-healing potential when embedded into dental resin composite as will be demonstrated in our future work.
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source Publicly Available Content Database; PubMed Central
subjects Aqueous solutions
Capsules
Catalysts
Composite materials
Composite Resins
Crack propagation
Dental cement
Dental composite
Dental restorative materials
Emulsion polymerization
Fractures
Humans
Microcapsules
Morphology
Nanoparticles
Polyethylene Glycols
Polymerization
Polymers
Polymethacrylic Acids
Resin composite
Self-healing
Spectroscopy, Fourier Transform Infrared
Surfactants
title Synthesis and characterisation of microcapsules for self-healing dental resin composites
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