Effect of shear processing on the linear viscoelastic behaviour and microstructure of bitumen/montmorillonite/MDI ternary composites

Abstract

. (2017) Effect of shear processing on the linear viscoelastic behaviour and microstructure of bitumen/montmorillonite/MDI ternary composites. Journal of Industrial and Engineering Chemistry. Permanent WRAP URL: http://wrap.warwick.ac.uk/84825 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for-profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription.For more information, please contact the WRAP Team at: wrap@warwick.ac.uk Accepted ManuscriptTitle: Effect of shear processing on the linear viscoelastic behaviour and microstructure of bitumen/montmorillonite/MDI ternary composites Author: <ce:author id="aut0005" author-id="S1226086X17300060-4f36759cb55ba066ecfb5a1f13867900"> Francisco J. Ortega<ce:author id="aut0010" orcid="0000-0002-8277-1073" author-id="S1226086X17300060-33cfe0c9d5c537178f20a446acfd05eb"> Francisco J. Navarro<ce:author id="aut0015" author-id="S1226086X17300060-5b52e3df441b49e50550689d6e7bc223"> Moisés García-Morales<ce:author id="aut0020" author-id="S1226086X17300060-ff4d040e0620c35497258c4e5653d909"> Tony This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Graphical abstract ABSTRACTPolymer modified bitumens (PMBs) have largely been utilized as a construction material. However, lack of affinity between bitumen and polymer leads to phase separation, and eventually, performance depletion. In this paper, alternative formulations of bitumen with an organically-modified montmorillonite (OMMT) Cloisite 20A® and polymeric methylene diphenyl diisocyanate (MDI) were prepared by melt blending. Their comprehensive rheological characterization evidenced improved linear viscoelastic properties when OMMT is added, reveali...

Short- and Long-Term Epoxy Modification of Bitumen: Modification Kinetics, Rheological Properties, and Microstructure

“…These results indicate that the esterification and etherification reactions take place between the oxirane groups and high molecular weight molecules found in aromatics and resins that contain carbonyl acid groups. The new bitumen compounds formed would not be eluted during the chromatographic separation, and therefore, they are quantified in the asphaltenes content [33,35,37]. It is evident that the development of more complex structures agrees with the above-commented rheological results.…”

“…Among them, the colloidal model is the most realistic to ascertain the effects of esterification and etherification reactions exerted on bitumen's behavior at high in-service temperatures. In accordance with this model, micelle-like structures formed by asphaltenes agglomerates are surrounded by high-molecular weight polar compounds (mainly resins) dispersed in a maltene fraction composed by saturates, aromatics, and the rest of resins [1,[32][33][34]. Thus, micelle sizes and the relative proportions of these fractions due to the arrangement of polar bitumen compounds strongly affect the thermo-rheological behaviour of bitumen, and it is accepted that more structured systems display higher viscosity [35,36].…”

Impact of anti-ageing compounds on oxidation ageing kinetics of bitumen by infrared spectroscopy analysis

“…Nanomaterials such as Cloisite C20A, bentonite HCT and sodium montmorillonite were However, debate exists on whether these improvements can justify their applications on wider range conditions in the field [25][26][27][28][29].…”

Rheological and fatigue characterisation of bitumen modified by anti-ageing compounds

“…The additives, furfural, (Dilauryl) thiodipropionate (DLTDP), Irganox 1076, sodium montmorillonite (NaMMT) and trimethylolpropane (TMP) were mixed with the bitumen by mass percentages of bitumen. These materials are believed to increase the bitumen resistance to thermal instability and permanent deformations [28,[35][36][37]. The chemical structures and physical characteristics of selected anti-ageing compounds are listed in Table 3.…”