Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/19051
Tipo do documento: Artigo
Título: Influence of glass fiber wt% and silanization on mechanical flexural strength of reinforced acrylics
Autor: Fonseca, Rodrigo Borges
Favarão, Isabella Negro
Kasuya, Amanda Vessoni Barbosa
Abrão, Marcel
Luz, Nicolas Franklin Mello da
Naves, Lucas Zago
Abstract: The 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.
Palavras-chave: Glass fibers
Reinforcement
Silane
Acrylic resin
Flexural strength
País: China
Unidade acadêmica: Faculdade de Odontologia - FO (RG)
Citação: FONSECA, 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.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.4236/msce.2014.22003  
Endereço da licença: http://creativecommons.org/licenses/by-nc-nd/3.0/br/
Identificador do documento: 10.4236/msce.2014.22003  
URI: http://repositorio.bc.ufg.br/handle/ri/19051
Data de publicação: 2014
Aparece nas coleções:FO - Artigos publicados em periódicos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Artigo - Rodrigo Borges Fonseca - 2014.pdf414,55 kBAdobe PDFThumbnail
Baixar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons