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Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights
المؤلفون المشاركون
Varanda, Catarina
Portugal, Inês
Ribeiro, Jorge
Silva, Carlos M.
Silva, A. M. S.
المصدر
Journal of Analytical Methods in Chemistry
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-08-08
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties.
This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen.
With this objective, an in-depth literature review on PPA modification was firstly performed.
Subsequently, five individual refinery components were selected for the preparation of bitumen blends, namely, asphaltic residue, vacuum residue, and three lube oils extracts.
Seven binary/ternary bitumen blends were prepared and then treated with PPA.
Afterwards, the five components and the unmodified and PPA-modified bitumen were characterized by standard methods (penetration, softening point, and penetration index), SARA analysis, elemental analysis, and 31P and 1H nuclear magnetic resonance (NMR) spectroscopy.
The results evidenced higher asphaltenes and lower saturates/resins contents in PPA-modified bitumen.
The NMR data suggest that the paraffinic chains became longer, the content of condensed aromatics increased, more substituted aromatic structures appeared, and α -hydrogen in aromatic structures diminished.
These findings disclosed the improved consistency and oxidation stability of PPA-modified bitumen blends.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Varanda, Catarina& Portugal, Inês& Ribeiro, Jorge& Silva, A. M. S.& Silva, Carlos M.. 2016. Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights. Journal of Analytical Methods in Chemistry،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1107288
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Varanda, Catarina…[et al.]. Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights. Journal of Analytical Methods in Chemistry No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1107288
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Varanda, Catarina& Portugal, Inês& Ribeiro, Jorge& Silva, A. M. S.& Silva, Carlos M.. Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights. Journal of Analytical Methods in Chemistry. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1107288
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1107288
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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