TY - CONF A1 - Weltschev, Margit A1 - Kohl, Anka A1 - Haufe, Manuela A1 - Heyer, Martina T1 - Compatibility of polyehtylene grades with biofuels and biodiesel-heating oil blends T2 - Corrosion 2015 N2 - The aim of this work was to study the interaction between high density polyethylene (HDPE) grades as material for dangeraus goods packagings and biofuels such as E10 (fuel with 10% ethanol), E85 (fuel with 85% ethanol), biodiesei and 810 (heating oil with 10% biodiesel). Jerricans made of two polyethylene grades were filled with these fuels and exposed to temperatures of 20 oc and 40 oc for more than one year. Tensile properlies (tensile strength, breaking elongation and elasticity modulus) and Melt Flow Rate (MFR) were determined, and Fourier Transform Infrared Spectroscopy (FTIR) was used to evaluate changes in the chemical structure. Measurements of the MFR and tensile properlies of the polyethylene grades after exposure to E1 0, E85 and 810 showed only a slightly damaging influence. A n increase in the peak of 1585 cm·1 for the (C=C) stretching vibrations was visible in the FTIR spectra after immersion tests with E85. A n increase in the MFR with the immersion time of the grades in biodiesei was measured - in parlicular, after one year of exposure. The elasticity modulus of the polyethylene grades was reduced with the immersion time too. The FTIR spectra showed a broadening of the C=O peak of 1740 cm·1 and the appearance of the hydroxyl group at 3500 cm·1. T2 - Corrosion 2015 CY - Dallas, TX, USA DA - 15.03.2015 KW - Polyethylene grades KW - Biodiesel KW - E10 KW - E85 KW - B10 KW - Tensile properties KW - FTIR analysis KW - Compatibility KW - Biofuels KW - Change in MFR and tensile properties PY - 2015 SP - Paper No. 5536, 1 EP - 12 AN - OPUS4-32968 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -