Plastic Pipes Conference Association # 2023 Lake Buena Vista
Antonio Rodolfo Jr., Vanderley M. John
Unplasticized (U-PVC) ABNT NBR 5647-2 regular industrial pipe samples, with nominal diameter DN 100, outside diameter 110 mm, nominal wall thickness 7.8 mm, Ca/Zn stabilized, were studied using an essential work of fracture (EWF) approach. These pipe samples were also tested for the degree of gelation via differential scanning calorimetry (DSC) and tensile strength. By applying a methodology previously developed using curved three-point bending (CTPB) specimens, it was possible to confirm previous findings that this specimen configuration is very suitable for EWF testing of pipe samples. When comparing results from this study with previous publications from the authors, it is shown that EWF seems to be an interesting alternative approach for gelation assessment, since it is evident from these results that there is a high degree of correlation between one of the EWF parameters and the DSC degree of gelation.
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