Journal of Materials Science

, Volume 47, Issue 7, pp 3305–3314 | Cite as

Influence of filler/reinforcing agent and post-curing on the flexural properties of woven and unidirectional glass fiber-reinforced composites

  • G. Furtos
  • L. Silaghi-Dumitrescu
  • M. Moldovan
  • B. Baldea
  • R. Trusca
  • C. Prejmerean


The aim of this study is to investigate the reinforcing effect of woven and unidirectional glass fibers and the effect of post-curing on the flexural strength and flexural modulus of glass fiber-reinforced composites. A series of composites containing 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)-phenyl]propane and triethyleneglycol dimethacrylate matrices and different reinforcements of unidirectional or woven glass fibers were prepared. The samples, 25 × 2 × 2 mm, were cured with a halogen curing lamp, followed by additional curing by thermal treatment at 135 ± 5 °C temperature and 60 psi pressure. Samples were tested before and after post-curing in order to determine the flexural strength and flexural modulus. The degree of reinforcement with glass fibers was varied between 14 and 57 wt% or 7.64 and 38.44 vol% by changing the number of unidirectional bundles or woven glass fiber bands in the composites, respectively. The obtained flexural strength values were in the range of 95.20–552.31 Mpa; the flexural modulus ranged between 2.17 and 14.7 GPa. The highest flexural strength and flexural modulus values were recorded for samples with unidirectional glass fibers. The mechanical qualities of the glass fibers-reinforced composites increased after post-curing treatment. Increasing of the glass fiber amount in the experimental composites improves both flexural strength and modulus. SEM micrographs of fractured composites indicate a strong interfacial interaction between the glass fibers and the polymer matrix.


Glass Fiber Flexural Strength Flexural Modulus DMAEMA Unidirectional Fiber 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This study was supported by CNCSIS—UEFISCDI, project number PNII—IDEI 1047/2008. One of the authors (G. F.) thanks the Babes-Bolyai University of Cluj-Napoca for the financial support. This study was possible with the financial support of the Sectoral Operational Programme for Human Resources Development 2007–2013, co-financed by the European Social Fund, under the project number POSDRU 89/1.5/S/60189 with the title “Postdoctoral Programs for Sustainable Development in a Knowledge Based Society”. The authors thank the COST Action TD0903 for COST meeting support.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • G. Furtos
    • 1
    • 2
  • L. Silaghi-Dumitrescu
    • 1
  • M. Moldovan
    • 1
  • B. Baldea
    • 3
  • R. Trusca
    • 4
  • C. Prejmerean
    • 1
  1. 1.Department of Dental MaterialsRaluca Ripan Institute of Research in Chemistry, Babes-Bolyai UniversityCluj-NapocaRomania
  2. 2.Faculty of Chemistry and Chemical EngineeringBabes-Bolyai UniversityCluj-NapocaRomania
  3. 3.Faculty of Dental MedicineTimisoaraRomania
  4. 4.METAV Research & DevelopmentBucharestRomania

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