International Journal of Experimental Dental Science

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VOLUME 3 , ISSUE 1 ( January-June, 2014 ) > List of Articles

RESEARCH ARTICLE

Flexural Strength of E-glass-reinforced PMMA

Merin Mathew, Kamalakanth Shenoy, KS Ravishankar

Citation Information : Mathew M, Shenoy K, Ravishankar K. Flexural Strength of E-glass-reinforced PMMA. Int J Experiment Dent Sci 2014; 3 (1):24-28.

DOI: 10.5005/jp-journals-10029-1063

Published Online: 01-06-2014

Copyright Statement:  Copyright © 2014; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Background

Poly (methyl 2-methylpropenoate) (PMMA) is one of the most widely accepted biomaterials due to its acceptable advantageous but the limitations associated with these materials make them far from being ideal. So, the present study is to achieve desirable flexural strength by reinforcing PMMA with E-glass fiber.

Aim

Determination of flexural strength of PMMA by varying the weight percentage of glass fiber (2.5 wt%, 5 wt%, 10 wt%), and by varying the aspect ratio (3 mm/20 µm, 6 mm/20 µm, 12 mm/20 µm) of glass fiber.

Materials and methods

Specimens prepared using a standard rectangular mold of 62 mm length, 10 mm breadth and 2.5 mm thickness. A total of 60 samples prepared (6 samples in each group) polymer—monomer ratio 2.4:1 by weight used to prepare samples. Flexural strength is tested using universal testing machine Instron. The microstructural analysis using scanning electron microscopy performed in order to understand the fiber matrix bonding. Detailed statistical analysis done by one-way ANOVA.

Results

Highest flexural strength is observed for the PMMA reinforced with 6 mm/20 µm fiber 2.5 wt%.

How to cite this article

Mathew M, Shenoy K, Ravishankar KS. Flexural Strength of E-glass-reinforced PMMA. Int J Experiment Dent Sci 2014;3(1):24-28.


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