Effect of ethanol on the mold filling-time and mechanical properties of woven glass fiber reinforced epoxy filled with TiO2 nanoparticles

Faculty Engineering Year: 2020
Type of Publication: ZU Hosted Pages:
Authors:
Journal: Journal of Industrial Textiles SAGE Publications Volume:
Keywords : Effect , ethanol , , mold filling-time , mechanical properties    
Abstract:
Vacuum resin infusion (VRI) is a promising technique for manufacturing complicated structural laminates. This high viscosity of nanofilled resin increases the filling time and leads to an incomplete mold filling. The mold filling time can be reduced either by making the fiber dimensions smaller than the mold (gaps around the fibers) or by adding ethanol to nanofilled epoxy. However, ethanol addition influences the mechanical properties of composite laminates. In this study, different amounts of ethanol (0.5 wt. % and 1 wt. %) were used as a diluent to both neat epoxy and epoxy filled with (0.25 wt. %) of titanium dioxide (TiO2) nanoparticles. From results, it was found that ethanol addition saves the time for neat and nanofilled epoxy by 47.1% and 24.1%, respectively. It was found that adding 0.5 wt. % of ethanol to 0.25wt. % of TiO2 nanoparticles (GT0.25E0.5) enhances the tensile and flexural strength by 30.8% and 55.9%, respectively compared with neat specimens. Furthermore, the tensile and flexural moduli increased by 62% and 72.3%, respectively. Furthermore, the mold filling time was investigated experimentally and validated numerically using ANSYS FLUENT software. The mold filling time prediction using ANSYS FLUENT can be used to avoid resin gelation before the incomplete mold filling and thus can be considered a cost-effective methodology. The results showed that the gaps around the fibers reduce the time by 178% without affecting the mechanical properties.
   
     
 
       

Author Related Publications

  • Mohamed Ali Elsayed Mohamed Agwa , "Treated basalt fibers reinforced nylon 6, 6/epoxy hybrid nanofibril composites", SAGE Publications, 2020 More
  • Mohamed Ali Elsayed Mohamed Agwa , "Effect of ultrasonic parameters on the mechanical properties of glass fiber reinforced polyester filled with nano-clay", SAGE Publications, 2020 More
  • Mohamed Ali Elsayed Mohamed Agwa , "Integrated vacuum assisted resin infusion and resin transfer molding technique for manufacturing of nano-filled glass fiber reinforced epoxy composite", SAGE Publications, 2020 More
  • Mohamed Ali Elsayed Mohamed Agwa , "Can ultrasonic parameters affect the impact and water barrier properties of nano-clay filled glass fiber/polyester composites?", SAGE Publications, 2020 More
  • Mohamed Ali Elsayed Mohamed Agwa , "Hardness, wear behavior and processing time of diluent and non-diluent nanocomposite laminates manufactured by vacuum infusion technique", SAGE Publications, 2020 More

Department Related Publications

  • Ashraf Abdelfattah Ali Hassanein, "Hot-Pressed Electrospun PAN Nano Fibers: An Idea for Flexible Carbon Mat", Journal of Materials Processing Technology,2009; 209:4617-4620, 2009 More
  • Mohammed Abdelmoniem Mohamed Eltaher , "Determination of neutral axis position and its effect on natural frequencies of functionally graded macro/nanobeams", www.elsevier.com/locate/compstruct, 2014 More
  • Mohammed Abdelmoniem Mohamed Eltaher , "Coupling effects of nonlocal and surface energy on vibration analysis of nanobeams", www.elsevier.com, 2013 More
  • Marwa Ahmed Abdelbaky Salam , "Interlaminar shear behavior of unidirectional glass fiber (U)/random glass fiber (R)/epoxy hybrid and non-hybrid composite laminates", ScienceDirect, 2012 More
  • Marwa Ahmed Abdelbaky Salam , "Statistical analysis of monotonic mechanical properties for unidirectional glass fiber (U)/random glass fiber (R)/epoxy hybrid and non-hybrid polymeric composites", sage, 2013 More
Tweet