Effects of Ultraviolet Radiation on Recycled and Virgin HDPE Corrugated Pipes Used in Road Drainage Systems

نویسندگان

چکیده

High-density polyethylene (HDPE) pipe is one of the materials interest for use in road drainage systems. The combination ultraviolet (UV) light, temperature, and moisture can produce weak spots lead to degradation during storage, installation, repair process. objective this study was evaluate changes chemical, morphological structure, thermomechanical properties recycled virgin pipes under UV exposure. Laboratory accelerated aging tests were conducted by exposing 3600 h with an irradiance 0.89 W/(m2 nm) at a wavelength 340 nm. A cycle 12 h—comprised 8 radiation 60 °C 4 no 50 corresponding water condensation—was performed condition specimens. HDPE specimens taken out after analyzed FTIR (Fourier-transform infrared spectroscopy), SEM (scanning electron microscopy), DSC (differential scanning calorimetry), oxidative-induction time (OIT) measurements, tensile tests. results show that maintained good not significantly affected radiation, similarly pipes. Statistical analysis using one-way variance (ANOVA) shows there significant difference between strength, elastic modulus, hardness measurements before There only few small surface addition carbon black, antioxidants, stabilizers prevented further

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ژورنال

عنوان ژورنال: Journal of Polymers and The Environment

سال: 2022

ISSN: ['1566-2543', '1572-8919']

DOI: https://doi.org/10.1007/s10924-022-02437-x