Effect of aging in hot chlorinated water on the mechanical behavior of polypropylene grades differing in their stabilizer systems

Joerg Fischer; Susan C. Mantell; Patrick R. Bradler; Gernot M. Wallner; Reinhold W. Lang

doi:10.1016/j.matpr.2019.03.001

Effect of aging in hot chlorinated water on the mechanical behavior of polypropylene grades differing in their stabilizer systems

Joerg Fischer, Susan C. Mantell, Patrick R. Bradler, Gernot M. Wallner, Reinhold W. Lang

Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

Polymeric materials used in solar-thermal applications are exposed to superimposed mechanical (e.g., system pressure) and environmental (e.g., temperature and environmental medium) loads. The environmental loading induced degradation of the polymers leads to diminished mechanical properties and to the reduction of the product lifetime. This paper describes the characterization of the mechanical behavior (i.e., strain-at-break and essential work of fracture) of four different polypropylene (PP) grades immersed for up to 750 h in chlorinated water (5 ppm chlorine content) at 60°C. The strain-at-break values exhibited a similar exposure time dependence as the essential work of fracture values. Depending on the PP grade, time-to-embrittlement values of 375 h and 750 h were obtained. For the three different stabilized PP grades, both testing methods led to an equal time-to-embrittlement value of 750 h.

Original language	English (US)
Pages (from-to)	385-392
Number of pages	8
Journal	Materials Today: Proceedings
Volume	10
DOIs	https://doi.org/10.1016/j.matpr.2019.03.001
State	Published - 2019
Event	2017 International Conference on Advanced Energy Materials, AEM 2017 - Surrey, United Kingdom Duration: Sep 11 2017 → Sep 13 2017

Bibliographical note

Funding 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).

Publisher Copyright:
© 2019 Elsevier Ltd. All rights reserved.

Keywords

Aging
Chlorinated water
Mechanical properties
Polypropylene
Solar-thermal collector

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Effect of aging in hot chlorinated water on the mechanical behavior of polypropylene grades differing in their stabilizer systems",

abstract = "Polymeric materials used in solar-thermal applications are exposed to superimposed mechanical (e.g., system pressure) and environmental (e.g., temperature and environmental medium) loads. The environmental loading induced degradation of the polymers leads to diminished mechanical properties and to the reduction of the product lifetime. This paper describes the characterization of the mechanical behavior (i.e., strain-at-break and essential work of fracture) of four different polypropylene (PP) grades immersed for up to 750 h in chlorinated water (5 ppm chlorine content) at 60°C. The strain-at-break values exhibited a similar exposure time dependence as the essential work of fracture values. Depending on the PP grade, time-to-embrittlement values of 375 h and 750 h were obtained. For the three different stabilized PP grades, both testing methods led to an equal time-to-embrittlement value of 750 h.",

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note = "Funding 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). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd. All rights reserved.; 2017 International Conference on Advanced Energy Materials, AEM 2017 ; Conference date: 11-09-2017 Through 13-09-2017",

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AU - Fischer, Joerg

AU - Mantell, Susan C.

AU - Bradler, Patrick R.

AU - Wallner, Gernot M.

AU - Lang, Reinhold W.

N1 - Funding 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). Publisher Copyright: © 2019 Elsevier Ltd. All rights reserved.

PY - 2019

Y1 - 2019

N2 - Polymeric materials used in solar-thermal applications are exposed to superimposed mechanical (e.g., system pressure) and environmental (e.g., temperature and environmental medium) loads. The environmental loading induced degradation of the polymers leads to diminished mechanical properties and to the reduction of the product lifetime. This paper describes the characterization of the mechanical behavior (i.e., strain-at-break and essential work of fracture) of four different polypropylene (PP) grades immersed for up to 750 h in chlorinated water (5 ppm chlorine content) at 60°C. The strain-at-break values exhibited a similar exposure time dependence as the essential work of fracture values. Depending on the PP grade, time-to-embrittlement values of 375 h and 750 h were obtained. For the three different stabilized PP grades, both testing methods led to an equal time-to-embrittlement value of 750 h.

AB - Polymeric materials used in solar-thermal applications are exposed to superimposed mechanical (e.g., system pressure) and environmental (e.g., temperature and environmental medium) loads. The environmental loading induced degradation of the polymers leads to diminished mechanical properties and to the reduction of the product lifetime. This paper describes the characterization of the mechanical behavior (i.e., strain-at-break and essential work of fracture) of four different polypropylene (PP) grades immersed for up to 750 h in chlorinated water (5 ppm chlorine content) at 60°C. The strain-at-break values exhibited a similar exposure time dependence as the essential work of fracture values. Depending on the PP grade, time-to-embrittlement values of 375 h and 750 h were obtained. For the three different stabilized PP grades, both testing methods led to an equal time-to-embrittlement value of 750 h.

KW - Aging

KW - Chlorinated water

KW - Mechanical properties

KW - Polypropylene

KW - Solar-thermal collector

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ER -

Effect of aging in hot chlorinated water on the mechanical behavior of polypropylene grades differing in their stabilizer systems

Abstract

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