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The Synthesis and characterization of of asphalt anti-stripping agents, amides synthesized from waste oils
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2016, v.29 no.6, pp.300-304
https://doi.org/10.5806/AST.2016.29.6.300
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(2016). The Synthesis and characterization of of asphalt anti-stripping agents, amides synthesized from waste oils. Analytical Science and Technology, 29(6), 300-304, https://doi.org/10.5806/AST.2016.29.6.300
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Abstract
The asphalt antistripping agents were synthesized from ethylenediamine (ED) or N,N′-bis(2- hydroxyethyl)ethylenediamine (HEED) with three different fatty acids. The formation of amide bonds were successfully performed and confirmed by FT-IR and 1H-NMR data. The adhesive properties of antistripping agents were compared in terms of contact angle and BBS test. The reaction product of ED with waste animal fat exhibited the most hydrophobic by the contact angle measurement, and the strongest water resistance of 94 % by BBS test. However, the reaction product of ED with waste vegetable oil showed the strongest absolute bond strength of ca. 3610 and 3227 kPa for before and after water conditioning, respectively. For the bond strength in general, the reaction products of ED were superior to HEED reaction products, and the reaction products of animal fat and waste vegetable oil were superior to those of pure soybean oil.
- keywords
- antistripping agents, amide, fatty acid, ethylenediamine, asphalt
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