Enhancing mechanical properties of an injectable two-solution acrylic bone cement using a difunctional crosslinker

Michael J. Wiegand, Kennedy L. Faraci, Brittany E. Reed, Julie M. Hasenwinkel

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Two-solution bone cements modified with ethylene glycol-dimethacrylate (EG-DMA) as a crosslinker have been developed as an attempt to further improve the mechanical properties of acrylic bone cement. The result of this study shows that EG-DMA can increase the mechanical properties and fractional monomer conversion while preserving the thermal characteristics. The strength and bending modulus increase with EG-DMA concentrations at 5–10 vol % EG-DMA. Substituting the EG-DMA content past 10 vol % decreases the bending properties due to the effects of reduced monomer concentrations. Strengthened EG-DMA samples demonstrated an increase in ductility with noticeably different fracture surface morphologies than the control samples, indicated by microtroughs and ridge formation caused by excessive plastic strain. This work provides insight into the effect of substituting a crosslinker for MMA monomer in an injectable two-solution system and lays out the ideal concentrations of EG-DMA for superior mechanical or fractional monomer conversion properties.

Original languageEnglish (US)
Pages (from-to)783-790
Number of pages8
JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
Volume107
Issue number3
DOIs
StatePublished - Apr 2019

Keywords

  • acrylic
  • bone cement-PMMA
  • ethylene glycol-dimethacrylate
  • fractional conversion
  • mechanical properties

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering

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