ArticlePolymers2021
Analysis of the Storage Stability Property of Carbon Nanotube/Recycled Polyethylene-Modified Asphalt Using Molecular Dynamics Simulations.
Article in Polymers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 63 citations in OpenAlex.
- Research on the Performance and Application of High-Performance PE Composite Modified Asphalt.Polymers · 2025Article
- Molecular dynamics-based study of the modification mechanism of asphalt by graphene oxide.Journal of molecular modeling · 2023Article
- Probing the Effect of Linear and Crosslinked POE-Materials (Basel, Switzerland) · 2023Article
- Multi-Scale Characterization of High-Temperature Properties and Thermal Storage Stability Performance of Discarded-Mask-Modified Asphalt.Materials (Basel, Switzerland) · 2022Article
- Study on the Stability of Bio-Oil Modified Prime Coat Oil Based on Molecular Dynamics.Materials (Basel, Switzerland) · 2022Article
- Article
- Analysis of Interface Fusion Effect between Old and New Asphalt under Plant Mixing and Cold Recycling Mode Based on Molecular Dynamics Simulation.Materials (Basel, Switzerland) · 2021Article
- Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt.Materials (Basel, Switzerland) · 2021Article
- Nanocomposite Materials Based on TMDCs WSPolymers · 2021Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
Carbon nanotubes (CNTs) can improve the storage properties of modified asphalt by enhancing the interfacial adhesion of recycled polyethylene (RPE) and base asphalt. In this study, the interaction of CNT/RPE asphalt was investigated using molecular dynamics simulation. The base asphalt was examined using a 12-component molecular model and verified by assessing the following properties: its four-component content, elemental contents, radial distribution function (RDF) and glass transition temperature. Then, the adhesion properties at the interface of the CNT/RPE-modified asphalt molecules were studied by measuring binding energy. The molecular structural stability of CNTs at the interface between RPE and asphalt molecules was analyzed through the relative concentration distribution. The motion of molecules in the modified asphalt was studied in terms of the mean square displacement (MSD) and diffusion coefficient. The results showed that CNTs improved the binding energy between RPE and base asphalt. CNTs not only weakened the repulsion of RPE with asphaltenes and resins, but also promoted the interaction of RPE with light components, which facilitated the compatibility of RPE with the base asphalt. The change in the interaction affected the molecular motion, and the molecular diffusion coefficient in the CNT/RPE-modified asphalt system was significantly smaller than that of RPE-modified asphalt. Moreover, the distribution of the asphaltene component was promoted by CNTs, resulting in the enhancement of the storage stability of RPE-modified asphalt. The property indexes indicated that the storage stability was significantly improved by CNTs, and better viscoelastic properties were also observed. Our research provides a foundation for the application of RPE in pavement engineering.
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