Polymer and Composite

Polymer Characterization

Rheological characterization

• Dynamic Mechanical Spectrometer using Rheometric Scientific RMS-800
• Melt Elasticity evaluation using Melt Elasticity Indexer
• Melt Index and Melt Flow Rate measurements as per ASTM D-1238

Evaluation of polymer blends (mixing and compatibility)

• Brabender Intensive Mixer
• Optical microscopy and hot stage
• Scanning Electron Microscopy (Digital, Low Voltage, FEG)
• Transitions of polymers by dynamic torsion

Evaluation of electrical properties

• Dielectric properties
• Surface and volume resistivity for EMI shielding

Mechanical Properties

• Tensile properties as per ASTM D-638 and other temperatures
• Flexural properties as per ASTM D-680
• Gardner Impact as per ASTM D-3029 and D-4226
• Izod/Charpy impact test as per ASTM D-256

Residual Stress Analysis:

• Polarizing microscope
• Stress birefringence measurements

Thermal Properties of Polymers:

• Heat of transitions by Differential Scanning Calorimeter DSC-7
• Thermal stability by Thermogravimetric Analysis TGS-2

Materials and Additives Analysis:

• Fourier Transform Infra-Red analysis
• FTIR Spectral library
• Energy dispersive X-Ray Spectroscopy with surface mapping

Molecular Weight and Molecular Weight Distribution:

• High Temperature Gel Permeation Chromatography
• Solution Viscosity

• Rheological properties using Capillary Rheometer: with or without entrance pressure correction
• Melt Strength measurement
• Thermal properties, specific heat and heat of transition, by Differential Scanning Calorimeter
• Solid & Melt density measurements at various temperatures and pressures
• Thermal conductivity and diffusivity of solid and melt

Posted by ARIE at 3:09 AM