Study of Ni/Y₂O₃/Polylactic Acid Composite.

Area of Science:

• Materials Science
• Nanotechnology
• Composite Materials

Background:

• Developing novel nanocomposite materials is crucial for advanced manufacturing.
• Nickel/Yttrium Oxide (Ni/Y2O3) offers unique properties for material enhancement.
• Polylactic Acid (PLA) is a biodegradable polymer with potential for composite applications.

Purpose of the Study:

• To synthesize Ni/Y2O3 nanocomposite particles.
• To incorporate these particles into a PLA matrix for composite material development.
• To evaluate the processability and mechanical properties of the resulting composite.

Main Methods:

• Ultrasound-assisted precipitation via ultrasonic spray pyrolysis for Ni/Y2O3 synthesis.
• Polyvinylpyrrolidone (PVP) used as a stabilizer in aqueous suspension.
• Transmission electron microscopy (TEM) and electron diffraction for material characterization.
• Lyophilization of Ni/Y2O3 suspensions for drying.
• Embedding Ni/Y2O3 into PLA matrix followed by extrusion and injection molding.

Main Results:

• Successful synthesis of Ni/Y2O3 nanocomposite particles with an average diameter of 466 nm.
• Confirmation of Y2O3 core and Ni shell structure via TEM and electron diffraction.
• PLA/Ni/Y2O3 composite material successfully processed via extrusion and injection molding.
• Flexural testing showed a minor decrease in flexural strength (8.55%) and strain at break (3.7% to 3.3%) compared to pure PLA.

Conclusions:

• Ni/Y2O3 nanocomposite particles can be effectively synthesized and incorporated into PLA.
• The developed PLA/Ni/Y2O3 composite material is suitable for injection molding.
• Further research is warranted to explore the full potential and applications of these nanocomposites.