Dynamic mechanical analysis data of PEG/amorphous-silica composites

Area of Science:

• Materials Science
• Polymer Science
• Composite Materials

Background:

• Polyethylene glycol (PEG) is a versatile polymer with applications in various fields.
• Amorphous silica fillers can modify polymer properties.
• Understanding the thermomechanical behavior of PEG/silica composites is crucial for material design.

Purpose of the Study:

• To investigate the dynamic thermomechanical properties of PEG/amorphous-silica composites.
• To evaluate the effect of varying amorphous silica content (0, 20, and 40% by weight) on composite properties.
• To determine the influence of silica on the thermal stability and mechanical response of PEG.

Main Methods:

• Solid-state method for composite preparation.
• Transmission electron microscopy (TEM) for amorphous-silica morphology analysis.
• Dynamic mechanical analysis (DMA) in shear mode to determine storage modulus (G') versus temperature.
• Thermal analysis to determine melting temperature and activation energy for degradation.

Main Results:

• Characterization of composite morphology using TEM.
• Quantification of storage modulus (G') as a function of temperature for different silica loadings.
• Determination of melting temperatures and degradation activation energies for all composite formulations.
• Demonstration of how silica content influences the thermomechanical performance of PEG.

Conclusions:

• The study provides comprehensive data on the dynamic thermomechanical properties of PEG/amorphous-silica composites.
• Amorphous silica significantly impacts the storage modulus, melting temperature, and degradation behavior of PEG.
• The findings offer valuable insights for developing advanced PEG-based composite materials with tailored properties.