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Influence of Surface Treatment on the Interfacial and Mechanical Properties of Short S-Glass Fiber-Reinforced Dental Composites

Journal Article


Abstract


  • The influence of interfacial shear strength (IFSS) between processed short S-glass fibers (250 and 350 μm in length, 5 μm in diameter) and the dental resin (a mixture of urethane dimethacrylate and triethylene glycol dimethacrylate monomers) on the mechanical properties has been studied experimentally. The surface profile of short S-glass fibers was modified using a selective atomic level metal etching process and simple silanization process to enhance the interfacial properties. The S-glass fibers were etched in acid solutions to increase the surface roughness and selectively remove Al3+ and Mg2+ ions, which promoted the mechanical and chemical interfacial bonding reactions. The single glass fiber tensile and microdroplet pull-out tests were performed to investigate the effects of interfacial properties on the flexural strength of the resultant composites. The surface modified S-glass fibers showed an increase of 11-40% in IFSS compared to untreated glass fibers. Composites reinforced with 350 μm length glass fibers (AR-70), which were treated in piranha solution for 4 h, showed the highest improvement in overall mechanical properties, flexural strength (34.2%), modulus (9.7%), and breaking energy (51.9%), compared to the untreated fiber-reinforced composites. The modified Lewis-Nielsen equation was developed using the effective fiber length factor to accurately predict the modulus of the short fiber-reinforced composites and validated with experimental results.

UOW Authors


  •   Cho, Kiho (external author)
  •   Wang, Guannan (external author)
  •   Raju, Raju (external author)
  •   Rajan, Ginu
  •   Fang, Jian (external author)
  •   Stenzel, Martina (external author)
  •   Farrar, Paul (external author)
  •   Prusty, Gangadhara B. (external author)

Publication Date


  • 2019

Citation


  • K. Cho, G. Wang, R. Raju, G. Rajan, J. Fang, M. H. Stenzel, P. Farrar & B. Gangadhara. Prusty, "Influence of Surface Treatment on the Interfacial and Mechanical Properties of Short S-Glass Fiber-Reinforced Dental Composites," ACS Applied Materials and Interfaces, vol. 11, pp. 32328-32338, 2019.

Scopus Eid


  • 2-s2.0-85071788175

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3182

Number Of Pages


  • 10

Start Page


  • 32328

End Page


  • 32338

Volume


  • 11

Place Of Publication


  • United States

Abstract


  • The influence of interfacial shear strength (IFSS) between processed short S-glass fibers (250 and 350 μm in length, 5 μm in diameter) and the dental resin (a mixture of urethane dimethacrylate and triethylene glycol dimethacrylate monomers) on the mechanical properties has been studied experimentally. The surface profile of short S-glass fibers was modified using a selective atomic level metal etching process and simple silanization process to enhance the interfacial properties. The S-glass fibers were etched in acid solutions to increase the surface roughness and selectively remove Al3+ and Mg2+ ions, which promoted the mechanical and chemical interfacial bonding reactions. The single glass fiber tensile and microdroplet pull-out tests were performed to investigate the effects of interfacial properties on the flexural strength of the resultant composites. The surface modified S-glass fibers showed an increase of 11-40% in IFSS compared to untreated glass fibers. Composites reinforced with 350 μm length glass fibers (AR-70), which were treated in piranha solution for 4 h, showed the highest improvement in overall mechanical properties, flexural strength (34.2%), modulus (9.7%), and breaking energy (51.9%), compared to the untreated fiber-reinforced composites. The modified Lewis-Nielsen equation was developed using the effective fiber length factor to accurately predict the modulus of the short fiber-reinforced composites and validated with experimental results.

UOW Authors


  •   Cho, Kiho (external author)
  •   Wang, Guannan (external author)
  •   Raju, Raju (external author)
  •   Rajan, Ginu
  •   Fang, Jian (external author)
  •   Stenzel, Martina (external author)
  •   Farrar, Paul (external author)
  •   Prusty, Gangadhara B. (external author)

Publication Date


  • 2019

Citation


  • K. Cho, G. Wang, R. Raju, G. Rajan, J. Fang, M. H. Stenzel, P. Farrar & B. Gangadhara. Prusty, "Influence of Surface Treatment on the Interfacial and Mechanical Properties of Short S-Glass Fiber-Reinforced Dental Composites," ACS Applied Materials and Interfaces, vol. 11, pp. 32328-32338, 2019.

Scopus Eid


  • 2-s2.0-85071788175

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3182

Number Of Pages


  • 10

Start Page


  • 32328

End Page


  • 32338

Volume


  • 11

Place Of Publication


  • United States