Physical and Mechanical Properties Determination

The following test methods were used to determine the properties of cast polyurethane elastomers  

DMA was determined using a Rheometrics RMS-800 instrument at 1 Hz frequency with a heating rate of 2-10 °C/minute. 

Differential scanning calorimetry (DSC) analysis of the cast elastomers was performed on a Perkin Elmer (DSC-7) instrument at a heating rate of 10 °C/minute under a nitrogen atmosphere. 

Fourier transform-infra-red (FT-IR) analysis was performed on a Perkin Elmer System-2000 instrument. 

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MPa) and other samples are into the rocks class with very high strength (50-160 MPa). The results of physical and mechanical properties determinations are given in Table 2. 

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