TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Heming, Frank A1 - Jochems, Frank T1 - Impact of biocomponents in the fuel and heating oil on the compatibility of sealing materials N2 - The objective of this research was to determine the resistance of frequently used sealing materials such as FKM, FVMQ, VMQ, EPDM, CR, CSM, IIR, PA, NBR and PUR in fuels and heating oil with and without admixtures of biogenic sources such as E10, diesel fuel with 5 % biodiesel, non-aged and 2 year aged B10 (heating oil with 10 % biodiesel), pure diesel, standard heating oil and premium grade fuel Super plus at 20 °C, 40 °C and 70 °C. Mass, tensile strength and breaking elongation of the test specimens were determined before and after the exposure for 84 days in the fuels. The visual examination of some elastomer test specimens clearly showed the great volume increase until break or partial dissolution. Shore hardness A and D (for PA) were determined before and after exposure of the test specimens in the biofuels for 42 days. There is not determined a threshold for the reduction in tensile properties and Shore hardness in the international standards. Therefore a threshold of 15 % was determined for the evaluation of the compatibility. In summary, it can be therefore stated that the chemical resistance of the fluoropolymers FKM and FVMQ in fuels and biofuels is the best one. T2 - CORROSION 2016 CY - Vancouver, Kanada DA - 06.03.2016 KW - sealing materials KW - compatibility KW - biofuels PY - 2016 SP - Paper No. 7307, 1 EP - 12 PB - NACE INTERNATIONAL, Publications Division CY - Houston, Texas 77084 (USA) AN - OPUS4-35622 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Heming, Frank A1 - Jochems, Frank T1 - Impact of biocomponents in the fuel and heating oil on the compatibility of sealing materials N2 - The objective of this research was to determine the resistance of frequently used sealing materials such as FKM, FVMQ, VMQ, EPDM, CR, CSM, IIR, PA, NBR and PUR in fuels and heating oil with and without admixtures of biogenic sources such as E10, diesel fuel with 5 % biodiesel, non-aged and 2 year aged B10 (heating oil with 10 % biodiesel), pure diesel, standard heating oil and premium grade fuel Super plus at 20 °C, 40 °C and 70 °C. Mass, tensile strength and breaking elongation of the test specimens were determined before and after the exposure for 84 days in the fuels. The visual examination of some elastomer test specimens clearly showed the great volume increase until break or partial dissolution. Shore hardness A and D (for PA) were determined before and after exposure of the test specimens in the biofuels for 42 days. There is not determined a threshold for the reduction in tensile properties and Shore hardness in the international standards. Therefore a threshold of 15 % was determined for the evaluation of the compatibility. In summary, it can be therefore stated that the chemical resistance of the fluoropolymers FKM and FVMQ in fuels and biofuels is the best one. T2 - CORROSION 2016 CY - Vancouver, Kanada DA - 06.03.2016 KW - compatibility KW - sealing materials KW - biofuels PY - 2016 AN - OPUS4-35623 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Hoffmann, Gabi T1 - Schadensursachen an Rohrleitungen N2 - Das Gefährdungspotential von Rohrleitungen hängt primär von den Eigenschaften des durchfließenden Stoffes, den Betriebsbedingungen und den äußeren Beanspruchungen ab. Zu den Hauptschadensursachen an Rohrleitungen zählen Korrosion, Druckstöße und Kavitationsschläge, Zeitstandbeanspruchung, struktur- und fluidmechanische Schwingungen, Fremdberührungen, elektrische Fremdbeeinflussung und geologische Besonderheiten im Bereich des Rohrleitungsverlaufes. T2 - Workshop:Anwendung der verteilten akustischen und faseroptischen Sensorik zur kontinuierlichen Überwachung von Rohrleitungen CY - Berlin DA - 01.03.2016 KW - Korrosion KW - Zeitstandbeanspruchung KW - Struktur- und fluidmechanische Schwingungen KW - Elektrische Fremdbeeinflussung PY - 2016 AN - OPUS4-35624 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Heming, Frank T1 - Compatibility of elastomers with biofuels N2 - Biofuels represent an important renewable fuel alternative to petroleum-derived transport fuels. Materials compatibility is a major concern whenever the fuel composition is changed. The aim of this work is to study the interaction of the elastomers: FKM, EPDM, CR, CSM, NBR, IIR, VMQ and FVMQ and biofuels such as biodiesel (FAME), E85 (fuel with 85% ethanol) and B10 (heating oil with 10% biodiesel). Exposure tests were performed with test specimens at 40°C (104°F) and 70°C (158°F) for 84 days to document the changes in mass, volume and tensile properties according to ISO 1817. The exposure tests in E85 showed that the weight gain caused by swelling was in the range up to 12%. The lowest decrease in the tensile properties was determined for FKM, VMQ and IIR. The weight gain of the elastomers in biodiesel varied between 10% (FKM) and 126% (CSM) and the loss of tensile strength between 16% (FKM) and 100% (CSM) at 70°C (158°F). FKM and FVMQ absorbed much less B10 and swelled less. NBR, EPDM, CR, CSM, IIR and VMQ were not resistant to B10 at all as the decrease in the tensile properties was significantly over 50%. Among all of the elastomers FKM showed high compatibility with these biofuels up to 70°C (158°F). T2 - Corrosion 2014 CY - San Antonio, TX, USA DA - 09.03.2014 KW - Biofuels KW - Elastomers KW - Compatibility KW - Change in tensile properties KW - Change in mass KW - Sealing materials KW - Biodiesel KW - E85 KW - B10 KW - Mass loss KW - Tensile properties PY - 2014 SP - Paper 3745, 1 EP - 9 AN - OPUS4-30411 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Compatibility of Elastomers with Biofuels T2 - CORROSION 2014 CY - San Antonio, TX, USA DA - 2014-03-09 PY - 2014 AN - OPUS4-30430 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Niebergall, Ute T1 - Comparison of the stress crack resistance of polyethylene grades with the test performance behaviour of packagings for the transport of dangerous goods N2 - Technically high-quality hollow articles made of polyethylene have proved many times their value as dangerous goods packagings. Design type tests according to the international regulations for the transport of dangerous goods - drop test, stacking test, hydraulic pressure test and leakproofness test must be performed for every design type and manufacturer. The properties melt flow rate (MFR), relative density (D), low temperature notched Impact strength (N.I.S.) at -30 °C, environmental stress crack resistance (FNCT) and resistance to oxidative degradation Ox by nitric acid (determined by the increase of MFR) have been selected together with the corresponding test methods and tolerances for a comparison of polyethylene grades of one design type in the procedural rule on suitability proof for alternative plastic resins used for dangerous goods packagings and intermediate bulk containers (IBCs) – EN 15507. We wanted to proof the practical relevance of this standard by comparing the relationship between the results of the FNCT and the times to failure of design types in stacking tests with wetting solution and normal butyl acetate saturated wetting solution. T2 - EUROCORR 2010 CY - Moscow, Russia DA - 13.09.2010 KW - Drop test KW - Stacking test KW - Hydraulic pressure test KW - Leakproofness test PY - 2010 AN - OPUS4-35843 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Kohl, Anka A1 - Haufe, Manuela T1 - Compatibility of polyethylene grades with biofuels and biodiesel-heating oil blends N2 - 8iofuels including ethanol and biodiesel (fatty acid methyl ester) represent an important renewable fuel alternative to petroleum-derived transport fuels. lncreasing biofuels use would bring some benefits, such as a reduction in oil demands and greenhause gas emissions, and an improvement in air quality. T2 - EUROCORR 2015 - European corrosion congress CY - Graz, Austria DA - 06.09.2015 KW - Compatibility KW - Polyethylene grades KW - Biofuels KW - Change in MFR and tensile properties PY - 2015 SP - Paper 16_1074, 1 EP - 11 AN - OPUS4-34203 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Jochems, Frank A1 - Heming, Frank T1 - Change in properties of sealing materials in biofuels, biodiesel-heating oil blends, diesel and premium grade fuel at different temperatures N2 - Materials compatibility is a major concern whenever the fuel composition is changed in a fuel system. Therefore frequently used sealing materials such as FKM (fluorocarbon rubber), FVMQ (methyl-fluoro-silicone rubber), VMQ (methyl-vinyl-silicone rubber), EPDM (ethylene-propylene-diene rubber), CR (chloroprene rubber), CSM (chlorosulfonated polyethylene), IIR (butyl rubber), PA (polyamides), N8R (acrylonitrile-butadiene rubber) and PUR (polyester urethane rubber) were exposed to E1 0, diese I fuel with 5% biodiesel, non-aged and 2 year aged 810 (heating oil with 10% biodiesel), and for comparison to pure diese! fuel, standard heating oil and Super plus without bioethanol at 20 °C, 40 oc and 70 oc for 84 days. Mass, tensile strength and breaking elongation of the test specimens were determined before and after the exposure. The visual examination of some elastomer test specimens clearly showed the great volume increase until break or partial dissolution. Shore hardness A and D (for PA) were determined before and after exposure of the test specimens to the biofuels for 42 days. There is not determined a threshold for the reduction in tensile properties and Shore hardness in the international standards. Therefore a threshold of 15% was determined for the evaluation of the compatibility. The sealing materials FKM, EPDM, N8R, FMVQ, CSM and PA were evaluated on the basis of this threshold as resistant in E1 0 at 20 oc and 40 °C. FKM, FVMQ and PA were resistant at 40 oc , and none of the materials were resistant at 70 °C. FKM and FVMQ absorbed much less 810 and swelled less. CR, CSM, EPDM, IIR, N8R and VMQ were not resistant to 810 at all at 20 oc, 40 oc and 70 oc as the decrease in the tensile properties was significantly over 50%. FVMQ and PA could be evaluated as resistant in non-aged and two year aged 810 at 20 oc and 40 oc, whereas FKM was resistant up to 70 °C. FKM, PA and PUR were evaluated as resistant in standard heating oil and pure diese! fuel at temperatures up to 40°C, only FKM was resistant up to 70°C. FVMQ, FKM, N8R, VMQ, CR and IIR can be evaluated as resistant in premium grade fuel Super plus without ethanol at 20 oc. FKM, FVMQ, VMQ and IIR were still resistant at 40 °C. FKM and FVMQ were evaluated as resistant with restrictions at 70 °C. ln summary, it can be therefore stated that the chemical resistance of the fluoropolymers FKM and FVMQ in fuels and biofuels is the best one. T2 - EUROCORR 2015 - European corrosion congress CY - Graz, Austria DA - 06.09.2015 KW - Compatibility KW - Sealing materials KW - Biofuels KW - Tensile properties KW - Shore hardness PY - 2015 SP - Paper 16_173, 1 EP - 11 AN - OPUS4-34204 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Weltschev, Margit ED - Hohmeyer, O. ED - Ottinger, R. L. T1 - Economic Losses to society Due to Material Damages of Environmental Pollution in the Federal Republic of Germany BT - Analysis and Internalization N2 - In Order to be able to assess the damage caused to materials by acid deposition the first question to be considered is: Which materials are affected? A wide ränge of materials are exposed to the extemal environment. These materials have different susceptibility to attack by acid rain and different stock at risk in the Federal Republic of Germany. KW - Economic Losses KW - Environmental Pollution PY - 1991 SN - 3-540-54184-5 SP - 25 EP - 35 PB - Springer CY - Berlin AN - OPUS4-51494 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Luftverunreinigung und Materialschäden N2 - Die im In- und Ausland vorliegenden Forschungsarbeiten zur Kostenabschätzung der immissionsbedingten Materialschäden beruhen auf zwei ökonomischen Bewertungsverfahren. Bewertungsgrundlage des einen Verfahrens sind die in Labor- und Freibewitterungsversuchen ermittelten physikalisch-chemischen Dosis-Wirkungs-Beziehungen zwischen dem Schadstoffgehalt der Luft und den schadensanfälligen Materialien. Die andere Methode geht von den Unterschieden im Instandsetzungverhalten in Abhängigkeit vom Standort (Industrie-, Stadt- und Landatmosphäre) der Sachgüter aus. T2 - Soziale Kosten der Energienutzung: Externe Kosten heute - Betriebskosten morgen CY - Mannheim, Germany DA - 05.11.1991 KW - Luftverunreinigung KW - Materialschäden PY - 1991 SN - 3-18-090927-7 SN - 0083-5560 VL - 927 SP - 19 EP - 33 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-51927 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -