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Theiler, Géraldine; Wachtendorf, Volker; Elert, Anna; Weidner, Steffen
Polymer testing, 09/2018, Letnik: 70Journal Article
The effects of weathering exposure on unfilled and filled thermoplastic polyurethanes (TPU) materials are described as performed under different humidity conditions. For this purpose, a weathering device was used with UV-A 340 nm lamps at a constant temperature of 40 °C. The effects of environmental (UV and humidity condition) degradation on the frictional properties of TPU materials are presented along with surface analyses to characterize the chemistry of the degradative process. Photooxidative degradation of unfilled polymer leads to deterioration of physical and mechanical properties, which affects its tribological behavior significantly. Due to crosslinking, the stiffness of the material increases, reducing drastically the friction coefficient of unfilled TPUs. The frictional behavior of glass fiber reinforced TPU is less affected by radiation. •Weathering exposure tests were performed on thermoplastic polyurethanes (TPU) materials in dry, humid and wet conditions.•Surface analyses were carried out to characterize the chemistry of the degradative process.•Friction are wear measurements were performed before and after weathering exposure.•Photooxidative degradation of unfilled polymer leads to deterioration of physical and mechanical properties, which affects its tribological behavior significantly.•After UV radiation, TPUs losses their anti-slip resistance.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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