Atomic force microscopy investigation of interaction forces between polyethylene and asphaltene surfaces

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Publication Type Book Chapter
School or College College of Mines & Earth Sciences
Department Metallurgical Engineering
Creator Miller, Jan D.
Other Author Aranowski, Robert; Nalaskowski, Jakub; Hupka, Jan
Title Atomic force microscopy investigation of interaction forces between polyethylene and asphaltene surfaces
Date 2006
Description Many petroleum-derived asphalts used for road construction exhibit poor rheological properties. These properties of asphalt can be improved by addition of various polymer fillers to the asphalt blend. Recycled polyolefines, especially polyethylene and polypropylene have been used as the asphalt modifying fillers. Unfortunately the polyolefine-asphalt mixtures are not stable and have a tendency to separate because of the chemical incompatibility of the components. In our research, surfactants were used to improve polymer-asphalt compatibility. Interaction forces between a polyethylene particle and a polyethylene surface and between a polyethylene particle and an asphaltene-surface were measured in surfactant solutions in n-tetradecane and pyridine using the atomic force microscopy colloidal probe technique. Dodecylamine, lauric acid and lauric alcohol (C12E4) were used as surfactants. The most pronounced change the interactions was observed for polyethylene-polyethylene surfaces in the solution of lauric acid. At the same conditions polyethylene-asphaltene interactions were decreased. The most increase was the increase in the repulsion range (to 26 nm) between the spherical PE probe and flat polyethylene surface for 10~3 M n-tetradecane solution of ethoxylated lauryl alcohol (C12E4). In the case of lauric acid the interaction range extended to 24 nm and for dodecylamine to 21 nm. The interaction between the polyethylene sphere and flat asphaltene surface extended to 16 nmfor dodecylamine, to 18 nmfor lauryl alcohol ethoxylated (C12E4) and to 14 nmfor lauric acid.
Type Text
Publisher Society for Mining, Metallurgy, and Exploration
First Page 187
Last Page 198
Subject Asphalt; Rheology; Polyolefins
Subject LCSH Asphalt; Surface active agents; Polyolefins
Language eng
Bibliographic Citation Aranowski, R., Nalaskowski, J., Hupka, J. & Miller, J. D. (2006). Atomic force microscopy investigation of interaction forces between polyethylene and asphaltene surfaces in nonaqueous systems, in Kellar, J. J., ed. Functional Fillers and Nanoscale Minerals: New Markets/New Horizons. 187-98.
Format Medium application/pdf
Format Extent 1,487,437 Bytes
Identifier ir-main,4844
ARK ark:/87278/s6x35g12
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 706474
Reference URL https://collections.lib.utah.edu/ark:/87278/s6x35g12
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