Amorphous Calcium Phosphate Based Composites: Effect of Surfactants and Poly(ethylene oxide) on Filler and Composite Properties.

Journal of Dispersion Science and Technology
J M AntonucciD Skrtic

Abstract

The uncontrolled aggregation of amorphous calcium phosphate (ACP) particulate fillers and their uneven distribution within polymer matrices can have adverse effects on the properties of ACP composites. In this paper we assessed the influence of non-ionic and anionic surfactants and poly(ethylene oxide) (PEO) introduced during the preparation of ACP on the particle size distribution and compositional properties of ACP. In addition, the mechanical strength of polymeric composites utilizing such fillers with a photo-activated binary methacrylate resin was evaluated. Zirconia-hybridized ACP (Zr-ACP) filler and its corresponding composite served as controls for this study. Surfactant- and PEO-ACPs had an average water content of 16.8 % by mass. Introduction of the anionic surfactant reduced the median particle diameter about 45 % (4.1 μm vs. 7.4 μm for the Zr-ACP control). In the presence of PEO, however, the d(m) increased to 14.1 μm. There was no improvement in the biaxial flexure strength (BFS) in any of the dry composite specimens prepared with the surfactant- and/or PEO-ACPs compared to those formulated with Zr-ACP. The BFS of wet composite specimens decreased by 50 % or more after a month-long exposure to saline solutions. Oth...Continue Reading

References

Dec 21, 1976·Biochimica Et Biophysica Acta·N M HansenH Fleisch
Jan 1, 1990·Journal of Dental Research·A J FeilzerC L Davidson
Jan 1, 1994·Dental Materials : Official Publication of the Academy of Dental Materials·D C Sarrett, S Ray
Dec 17, 1998·Journal of Biomedical Materials Research·D KnaackD D Lee
Jul 18, 2000·Journal of Biomedical Materials Research·D SkrticG E Schumacher
Apr 25, 2001·Journal of Biomedical Materials Research·A M AmbrosioC T Laurencin
May 30, 2002·Biomaterials·D TadicM Epple
Jan 1, 2003·Journal of Research of the National Institute of Standards and Technology·D SkrticE D Eanes

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Citations

Jul 12, 2011·Chemistry Central Journal·Jie ZhaoHai Zhang
Dec 11, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Marcela Charantola RodriguesRoberto Ruggiero Braga
Nov 22, 2011·Journal of Functional Biomaterials·Drago Skrtic, Joseph M Antonucci
Aug 22, 2009·Journal of Adhesion Science and Technology·J M AntonucciD Skrtic
Sep 10, 2020·Brazilian Oral Research·Mateus Silva VilelaMarcela Charantola Rodrigues
Jan 31, 2017·Journal of Functional Biomaterials·Diane R BienekDrago Skrtic

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scanning electron microscopy

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