Further development and evaluation of high impact strength denture base materials

Area of Science:

• Polymer Science and Engineering
• Materials Science and Engineering

Background:

• Previous research focused on poly(methylmethacrylate) (PMMA) reinforced with low molecular weight polybutadiene-based rubbers.
• Further development is needed to optimize material properties for specific applications.

Purpose of the Study:

• To further develop and optimize PMMA composites reinforced with polybutadiene-based rubbers.
• To evaluate the impact strength, Young's modulus, viscoelastic properties, and water absorption of the developed materials.
• To understand the effect of water absorption on the mechanical properties of these composites.

Main Methods:

• Optimization of PMMA/polybutadiene composite formulations.
• Mechanical testing to determine impact strength and Young's modulus.
• Viscoelastic property analysis.
• Water absorption studies and subsequent mechanical property evaluation.

Main Results:

• Achieved optimized impact strength up to 0.13 J.
• Maintained Young's modulus at approximately 2.3 GPa.
• Evaluated viscoelastic properties and water absorption characteristics.
• Assessed the influence of water absorption on mechanical performance.

Conclusions:

• The developed PMMA/polybutadiene composites show promising mechanical properties.
• Understanding water absorption effects is crucial for further material enhancement.
• Further research into underlying mechanisms can lead to superior material development.