Influence of glass fiber wt% and silanization on mechanical flexural strength of reinforced acrylics

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dc.creatorFonseca, Rodrigo Borges
dc.creatorFavarão, Isabella Negro
dc.creatorKasuya, Amanda Vessoni Barbosa
dc.creatorAbrão, Marcel
dc.creatorLuz, Nicolas Franklin Mello da
dc.creatorNaves, Lucas Zago
dc.date.accessioned2020-09-21T22:36:13Z
dc.date.available2020-09-21T22:36:13Z
dc.date.issued2014
dc.description.abstractThe aim is to evaluate the flexural strength of acrylic resin bars depending on the addiction of glass fibers with or without previous 3-methacryloxypropyl-trimethoxysilane (silane) application. Short fibers (3 mm) were treated and added to an acrylic resin powder, being further mixed with acrylic liquid to create bars (25 × 2 × 2 mm) of 11 experimental groups (N = 10), according to the interaction of experimental factors: weight % of glass fibers: (0.5; 1; 3; 4; 6 and 7) and silane application (with silane (S) or without silane (N)). Flexural strength and scanning microscopy evaluation were performed (SEM). Data (MPa) were submitted to ANOVA and Tukey (α = 5%). A significant difference between groups was observed (p = 0.001): S7%(128.85 ± 35.76)a, S6% (119.31 ± 11.97)ab, S4% (116.98 ± 25.23)ab, N4% (107.85 ± 24.88)abc, S1% (96.29 ± 20.65)bc, S0.5% (89.29 ± 7.33)cd, S3% (89.0 ± 11.27)cd, N3% (86.79 ± 17.63)cd, N1% (85.43 ± 16.44)cd, Control (73.29 ± 25.0)de, N0.5% (59.58 ± 19.46)e. For N groups, it was not possible to include more than 4%wt fibers. SEM showed better fiber-resin interaction for S groups, and fractures around fibers on N groups. Previous silane application enables the addiction of greater quantity of glass fibers and better interaction with the acrylic resin resulting in higher flexural strength. Without silane, fibers seem to act as initial crack points due to poor interaction.pt_BR
dc.identifier.citationFONSECA, Rodrigo B. et al. Influence of glass fiber wt% and silanization on mechanical flexural strength of reinforced acrylics. Journal of Materials Science and Chemical Engineering, Wuhan, v. 2, n. 2, p. 11-15, 2014.pt_BR
dc.identifier.doi10.4236/msce.2014.22003  
dc.identifier.issn2327-6045
dc.identifier.issne- 2327-6053
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/19051
dc.language.isoengpt_BR
dc.publisher.countryChinapt_BR
dc.publisher.departmentFaculdade de Odontologia - FO (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectGlass fiberspt_BR
dc.subjectReinforcementpt_BR
dc.subjectSilanept_BR
dc.subjectAcrylic resinpt_BR
dc.subjectFlexural strengthpt_BR
dc.titleInfluence of glass fiber wt% and silanization on mechanical flexural strength of reinforced acrylicspt_BR
dc.typeArtigopt_BR

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