File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The effect of ethanol on surface of semi-interpenetrating polymer network (IPN) polymer matrix of glass-fibre reinforced composite

TitleThe effect of ethanol on surface of semi-interpenetrating polymer network (IPN) polymer matrix of glass-fibre reinforced composite
Authors
KeywordsEthanol
Dissolution
Solvents
FRC
Interpenetrating polymer network
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/issn/17516161
Citation
Journal of the Mechanical Behavior of Biomedical Materials, 2019, v. 98, p. 1-10 How to Cite?
AbstractAim of the study: The aim of this laboratory study was to evaluate the effect of ethanol treatment on the surface roughness (Sa), nano-mechanical properties (NMP) and surface characterization of dental fiber reinforced composite (FRC) with semi-interpenetrating polymer network (IPN). Materials and methods: A total of 240 FRC specimens with bisphenol A-glycidyl methacrylate - triethyleneglycol dimethacrylate – Poly (methylmetahcrylate) (bis-GMA-TEGDMA-PMMA) IPN matrix system were light cured for 40 s and divided into 2 groups (L and LH). The group LH was further post-cured by heat at 95 °C for 25 min. The specimens were exposed to 99.9%, 70% and 40% for 15, 30, 60 and 120 s respectively. The treated specimens were evaluated for Sa using non-contact profilometer. NMP were determined using nanoindentation technique and chemical characterization was assessed by Fourier Transform-Infrared (FTIR) spectroscopic analyses. Scanning electron microscopic (SEM) images were made to evaluate the surface topographical changes. Results: Both the L and LH group showed changes in the Sa and NMP after being treated by different concentrations of ethanol and at different time interval. The highest Sa was observed with L-group (0.733 μm) treated with 99.9% ethanol for 120 s. Specimens in LH-group treated with 99.9% ethanol for 120 s (1.91 GPa) demonstrated increased nano-hardness, and group treated with 40% ethanol for 120 s demonstrated increased Young's modulus of elasticity (22.90 GPa). FTIR analyses revealed changes in the intensity and bandwidth in both the L and LH groups. Conclusion: The present study demonstrated that both light-cured and heat post-cured FRC were prone for ethanol induced alteration in the surface roughness (Sa), nano-mechanical properties (NMP) and chemical characterization. The interphase between the glass fibers and the organic matrix was affected by ethanol. The changes were considerably less in magnitude in the heat post-cured FRC specimens.
Persistent Identifierhttp://hdl.handle.net/10722/271411
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.748
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBasavarajappa, S-
dc.contributor.authorPerea-Lowery, L-
dc.contributor.authorAati, S-
dc.contributor.authorAbdullah Al-Kheraif, AA-
dc.contributor.authorRamakrishnaiah, R-
dc.contributor.authorMatinlinna, JP-
dc.contributor.authorVallittu, PK-
dc.date.accessioned2019-06-24T01:09:21Z-
dc.date.available2019-06-24T01:09:21Z-
dc.date.issued2019-
dc.identifier.citationJournal of the Mechanical Behavior of Biomedical Materials, 2019, v. 98, p. 1-10-
dc.identifier.issn1751-6161-
dc.identifier.urihttp://hdl.handle.net/10722/271411-
dc.description.abstractAim of the study: The aim of this laboratory study was to evaluate the effect of ethanol treatment on the surface roughness (Sa), nano-mechanical properties (NMP) and surface characterization of dental fiber reinforced composite (FRC) with semi-interpenetrating polymer network (IPN). Materials and methods: A total of 240 FRC specimens with bisphenol A-glycidyl methacrylate - triethyleneglycol dimethacrylate – Poly (methylmetahcrylate) (bis-GMA-TEGDMA-PMMA) IPN matrix system were light cured for 40 s and divided into 2 groups (L and LH). The group LH was further post-cured by heat at 95 °C for 25 min. The specimens were exposed to 99.9%, 70% and 40% for 15, 30, 60 and 120 s respectively. The treated specimens were evaluated for Sa using non-contact profilometer. NMP were determined using nanoindentation technique and chemical characterization was assessed by Fourier Transform-Infrared (FTIR) spectroscopic analyses. Scanning electron microscopic (SEM) images were made to evaluate the surface topographical changes. Results: Both the L and LH group showed changes in the Sa and NMP after being treated by different concentrations of ethanol and at different time interval. The highest Sa was observed with L-group (0.733 μm) treated with 99.9% ethanol for 120 s. Specimens in LH-group treated with 99.9% ethanol for 120 s (1.91 GPa) demonstrated increased nano-hardness, and group treated with 40% ethanol for 120 s demonstrated increased Young's modulus of elasticity (22.90 GPa). FTIR analyses revealed changes in the intensity and bandwidth in both the L and LH groups. Conclusion: The present study demonstrated that both light-cured and heat post-cured FRC were prone for ethanol induced alteration in the surface roughness (Sa), nano-mechanical properties (NMP) and chemical characterization. The interphase between the glass fibers and the organic matrix was affected by ethanol. The changes were considerably less in magnitude in the heat post-cured FRC specimens.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/issn/17516161-
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materials-
dc.subjectEthanol-
dc.subjectDissolution-
dc.subjectSolvents-
dc.subjectFRC-
dc.subjectInterpenetrating polymer network-
dc.titleThe effect of ethanol on surface of semi-interpenetrating polymer network (IPN) polymer matrix of glass-fibre reinforced composite-
dc.typeArticle-
dc.identifier.emailMatinlinna, JP: jpmat@hku.hk-
dc.identifier.authorityMatinlinna, JP=rp00052-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jmbbm.2019.05.030-
dc.identifier.pmid31174080-
dc.identifier.scopuseid_2-s2.0-85066495483-
dc.identifier.hkuros298170-
dc.identifier.volume98-
dc.identifier.spage1-
dc.identifier.epage10-
dc.identifier.isiWOS:000483637900001-
dc.publisher.placeNetherlands-
dc.identifier.issnl1878-0180-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats