Polypropylene (PP) is increasingly considered as a material choice for pressurized components in solar-thermal systems. In these systems, the materials are exposed to superimposed mechanical and environmental loads. The objective of this research is the characterization of the mechanical behavior of three different black-pigmented polypropylene (PP) grades immersed for up to 750 h in chlorinated water (5 ppm chlorine content) at an elevated temperature of 60°C. Hence, values for strain-at-break and essential work of fracture were determined by tensile tests. For the strain-at-break values and for the essential work of fracture values a similar exposure dependence was obtained. Depending on the PP grade, time-to-embrittlement values of 250 h and 750 h were achieved. For one PP grade, both testing methods led to an identical time-to-embrittlement value of 750 h.
|Original language||English (US)|
|Title of host publication||ISES Solar World Congress 2017 - IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2017, Proceedings|
|Editors||David Renne, Steven Griffiths, Manuel Romero, Ken Guthrie, Daniel Mugnier|
|Publisher||International Solar Energy Society|
|Number of pages||6|
|State||Published - 2017|
|Event||ISES Solar World Conference 2017, SWC 2017 and 5th International Conference on Solar Heating and Cooling Conference for Buildings and Industry 2017, SHC 2017 - Abu Dhabi, United Arab Emirates|
Duration: Oct 29 2017 → Nov 2 2017
|Name||ISES Solar World Congress 2017 - IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2017, Proceedings|
|Other||ISES Solar World Conference 2017, SWC 2017 and 5th International Conference on Solar Heating and Cooling Conference for Buildings and Industry 2017, SHC 2017|
|Country/Territory||United Arab Emirates|
|Period||10/29/17 → 11/2/17|
Bibliographical noteFunding Information:
This research work was performed in the cooperative research project SolPol-4/5 entitled “Solar-thermal systems based on polymeric materials” (www.solpol.at). The project SolPol-4/5 is funded by the Austrian Climate and Energy Fund (KLI.EN) within the program "e!MISSION.at" and the funding is administrated by the Austrian Research Promotion Agency (FFG).
© 2017. The Authors.
- Chlorinated water
- Mechanical properties
- Solar-thermal collector