Avaliação das propriedades mecânicas de um silicone de cura acética com adição de silicato de magnésio / Evaluation of the mechanical properties of the cured acetic silicone added with magnesium silicate

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The silicones request many characteristics and requirements for the use in the making of facial prostheses. To reach that objective other materials should be added. The aim of this work was to evaluate the mechanical properties of a national acetic cure silicone RTV, available in the market, adding silicate of magnesium (talc). The material was studied in your natural state and with increment of 10% and 20% of silicate of magnesium. It was submitted to tests of elongation and break, tensile strength and tear strength. After the individual evaluation of the specimens, it was obtained measured total of the each group and submitted to study comparative front to the results obtained through variance analysis (ANOVA) and Tukey test. The silicone in been original it showed to be more resistant to the elongation. The silicone with addition of 10% of silicate of magnesium modified your mechanical properties and obtained larger tear resistance. The silicone with addition of 20% of silicate magnesium obtained larger resistance to the tear strength. The silicone in witch it added 10% of silicate of magnesium in general obtained the more significant values in the three tested properties; that means that the increment of more than 10% lesses the properties gradually, becoming inversely proportional.

ASSUNTO(S)

silicate of magnesium talco silicato de magnésio silicone facial prosthesis talc prótese facial rubber silicone

ACESSO AO ARTIGO

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