Evaluation of thermo-mechanical properties of graphene/carbon-nanotubes modified asphalt with molecular simulation

Zhou, Xiuqing; Zhang, Xiao; Xu, Song; Wu, Shaopeng; Liu, Quantao; Fan, Zepeng

doi:10.1080/08927022.2016.1274985

Cited by 68 publications

(30 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kaolin (Al 2 O 3 •2SiO 2 •2H 2 O) can reduce the density difference between bitumen and SBS, which leads to modified bitumen to achieve stabilization [30]. In addition, there were also some reports on the same effect of carbon-white (SiO 2 ) on the thermal storage stability of bitumen [31,32].…”

Section: Other Components' Mechanism Of Actionmentioning

confidence: 99%

Design of SBS-Modified Bitumen Stabilizer Powder Based on the Vulcanization Mechanism

2018

View full text Add to dashboard Cite

In order to improve the problem of the bad thermal storage stability of Styrene-Butadiene-Styrene Block Copolymer Modified Bitumen (SBS-modified bitumen), the vulcanization reaction was selected as the basic mechanism for the research and development of the stabilizer. Sulfur, tetramethylthiuram disulfide (TMTD), zinc oxide, butylated hydroxytoluene (BHT), kaolin (Al 2 O 3 •2SiO 2 •2H 2 O) and carbon-white (SiO 2) were used as raw materials, and 32 kinds of components with different contents of raw materials were designed. The 48-h segregation softening point and other modified bitumen technical indicators, such as ductility, penetration, penetration index, viscosity, and so on, were tested and analyzed. The fluorescence microscope test was also conducted to explore the crosslinking situation based on the vulcanization reaction. The results show that the component with good performance of the SBS-modified bitumen stabilizer powder was S:TMTD:ZnO:BHT: Al 2 O 3 •2SiO 2

show abstract

Section: Other Components' Mechanism Of Actionmentioning

confidence: 99%

Design of SBS-Modified Bitumen Stabilizer Powder Based on the Vulcanization Mechanism

2018

View full text Add to dashboard Cite

show abstract

“…A comparative study was employed to study the effects of graphene and carbon nanotubes (CNTs) on the mechanical and thermal properties of the asphalt binder using molecular simulations, and in experiments by Zhou et al they found that the excess graphene in modified asphalt remained as aggregated particles, while most carbon nanotubes were dispersed in modified asphalt [111].…”

Section: Graphene and Carbonmentioning

confidence: 99%

The State-of-the-Art Review on Molecular Dynamics Simulation of Asphalt Binder

Wang

et al. 2018

Advances in Civil Engineering

View full text Add to dashboard Cite

Asphalt pavement has been widely used in the world. As the main components of asphalt pavement, the asphalt binder is crucial to the service performance and life of the road. In the past decades, numerous studies were conducted on technical performance, aging, and modification of the asphalt binder. With the development of modern technology, it was discovered that the microscopic properties, aging mechanism, and modification mechanism of the asphalt binder affect the macroscopic performance of asphalt pavement significantly. As a new emerging powerful numerical tool, the molecular dynamics (MD) simulation has been developed to study the asphalt binder material from a micro perspective. Based on the previous studies, some average asphalt binder models, fractional asphalt binder models, aged asphalt binder models, and modifier models were proposed by many researchers, which have made remarkable progress in asphalt studies; the microproperties, aging mechanism, and modification mechanism of the asphalt binder can also be analyzed using the MD simulation. Overall, the state-of-the-art review provides a comprehensive view for the readers to better understand the development, establishment, and application of the asphalt molecular model.

show abstract

“…Theoretical approximations for analyzing the thermomechanical properties of NCs include molecular dynamics (MD) [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ], molecular mechanics (MM) [ 17 , 18 ], and continuum mechanics (CM) [ 19 ] based methods. In addition, multi-scale numerical schemes have recently been proposed, which combine atomistic simulations such as MD or MM with other CM methods such as FEM in an effort to provide reliable predictions with low-computational cost [ 17 , 18 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Giannopoulos

Georgantzinos

2021

Materials

View full text Add to dashboard Cite

In the present study, the thermomechanical effects of adding a newly proposed nanoparticle within a polymer matrix such as polyethylene are being investigated. The nanoparticle is formed by a typical single-walled carbon nanotube (SWCNT) and two equivalent giant carbon fullerenes that are attached with the nanotube edges through covalent bonds. In this way, a bone-shaped nanofiber is developed that may offer enhanced thermomechanical characteristics when used as a polymer filler, due to each unique shape and chemical nature. The investigation is based on molecular dynamics simulations of the tensile stress–strain response of polymer nanocomposites under a variety of temperatures. The thermomechanical behavior of the bone-shaped nanofiber-reinforced polyethylene is compared with that of an equivalent nanocomposite filled with ordinary capped single-walled carbon nanotubes, in order to reach some coherent fundamental conclusions. The study focuses on the evaluation of some basic, temperature-dependent properties of the nanocomposite reinforced with these innovative bone-shaped allotropes of carbon.

show abstract

Evaluation of thermo-mechanical properties of graphene/carbon-nanotubes modified asphalt with molecular simulation

Cited by 68 publications

References 28 publications

Design of SBS-Modified Bitumen Stabilizer Powder Based on the Vulcanization Mechanism

Design of SBS-Modified Bitumen Stabilizer Powder Based on the Vulcanization Mechanism

The State-of-the-Art Review on Molecular Dynamics Simulation of Asphalt Binder

Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Contact Info

Product

Resources

About