Surface modification of basalt with silane coupling agent on asphalt mixture moisture damage

Min, Yahong; Fang, Ying; Huang, Xiaojun; Zhu, Yinhui; Li, Wensheng; Yuan, Jianmin; Tan, Ligang; Wang, Shuangyin; Wu, Zhenjun

doi:10.1016/j.apsusc.2015.04.002

Cited by 73 publications

(22 citation statements)

References 18 publications

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“…A C C E P T E D M A N U S C R I P T 5 atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) to improve the interfacial adhesion performance of asphalt mixture [32,33]. MD simulations have been used to quantify the adhesion properties and debonding behaviours between a virgin (unaged) bitumen and four different minerals [34].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Molecular dynamics investigation of interfacial adhesion between oxidised bitumen and mineral surfaces

Gao

Zhang

Yang

et al. 2019

Applied Surface Science

153

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The interfacial adhesion between oxidised bitumen and mineral surfaces at dry and wet conditions was investigated using molecular dynamics (MD) simulations. Molecular models were built for virgin and oxidised bitumen components including saturate, aromatic, resin and asphaltenes. The bitumen models and four representative mineral substrates (namely quartz, calcite, albite and microcline) were employed to construct bitumen-mineral interface systems. These models were validated by the experimental results and MD simulations reported in the literature. The hardening mechanism of the aged bitumen was analysed by comparing the density, cohesive energy density and fraction of free volume between the virgin and oxidised bitumen. Work of adhesion was computed to quantify the adhesive bonding property of the bitumen-mineral interface systems for the virgin, lightly oxidised and heavily oxidised bitumen models under dry and wet conditions. Results show that the oxidised products (carbonyl and sulfoxide) strengthen the intermolecular bonding, resulting in molecular

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Section: Accepted Manuscriptmentioning

confidence: 99%

Molecular dynamics investigation of interfacial adhesion between oxidised bitumen and mineral surfaces

Gao

Zhang

Yang

et al. 2019

Applied Surface Science

153

View full text Add to dashboard Cite

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“…The 24.19% of the higher C element is present on the surface of unmodified HCSW because it is synthesized in the laboratory by adding some C‐containing additives). This is because the carbon content in KH570 and TMPMP is higher than that in the HCSW, while the thickness of XPS detection thickness is only 5–10 nm . All these results indicate that the HCSW surface is coated with organic layers.…”

Section: Resultsmentioning

confidence: 91%

Surface modification of calcium sulfate whisker using thiol‐ene click reaction and its application in reinforced silicone rubber

Chen

Ding

Dong

et al. 2020

Journal of Polymer Science

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The hemihydrate calcium sulfate whisker (HCSW) was modified by γ‐(methacryloxy)propyl trimethoxy silane (KH570) and trimethylolpropane tris(3‐mercaptopropionate) via wet modification and thiol‐ene click reaction, and then the unmodified and modified HCSW were added into α, ω‐dihydroxy polysiloxane (DPS) matrix to prepare silicon rubber composites. After the dual‐surface modification, the surface of HCSW was transformed to hydrophobic, the hydration of whisker was obviously improved, and the whisker dispersed more evenly in the polymer. The mechanical properties, dynamic mechanical properties, and the medium resistance of the silicone rubber composite were compared. The tensile test shows that the silicone rubber shows better mechanical properties after adding the modified whiskers, among which HCSW‐KH570‐SH has the most significant reinforcement effect. Moreover, DPS/HCSW‐KH570‐SH shows the best medium resistance in toluene, gasoline, and water. The addition of modified whiskers can improve the storage modulus of silicone rubber significantly, while DMA and DSC show that the addition of modified whiskers can reduce the glass transition temperature of silicone rubber. The bound rubber indicates that the interface interaction between HCSW‐KH570‐SH and silicone rubber is the best.

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“…The binding energy of O1s spectra at 529.89, 532.08, 533.24, and 534.55 eV was assigned to oxygen atoms in the SiOSi, SiOH, COSi, and TiOSi bonds, further confirming the formation of COSi and TiOSi bonds . The existence of COSi and TiOSi bonds proved that nano‐SiO 2 successfully reacted with TiO 2 and PAM . The binding energy of Si2p spectra at 101.21, 102.24, and 103.35 eV were assigned to silicon atoms in the SiOSi, SiOH, and SiOCi bonds.…”

Section: Resultsmentioning

confidence: 95%

Tough hybrid hydrogels based on simultaneous dual in situ sol–gel technique and radical polymerization

She

Zhu

et al. 2019

J of Applied Polymer Sci

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A tough hybrid hydrogel has been developed by dual in situ sol–gel reaction of γ‐ethacryloxypropyltrimethoxysilane (MPTMS) and tetrabutyl titanate, as well as in situ radical polymerization of acrylamide (AM) and MPTMS. In this hydrogel, covalently bonded SiO2 and TiO2 nanoparticles were used as inorganic filler and multifunctional crosslinker. Nano‐TiO2 was bonded onto the surface of SiO2 by forming TiOSi bonds and SiO2 bonded with polymer chains by the formation of COSi bonds, which were confirmed by Fourier transform infrared and X‐ray photoelectron spectroscopy technology. Transmission electron microscopy images revealed that SiO2 and TiO2 tended to construct a distinct rod‐like structure in poly(AM) matrix. This specific microstructure enhanced the mechanical properties of hydrogel. The compressive stress of the gel reached up to 9.49 MPa, and the compressive fracture energy was as high as 5307.73 J m−2. This strategy provided a probable method for the preparation of tough soft materials with potential applications in chemical machinery and actuators. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47742.

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Surface modification of basalt with silane coupling agent on asphalt mixture moisture damage

Cited by 73 publications

References 18 publications

Molecular dynamics investigation of interfacial adhesion between oxidised bitumen and mineral surfaces

Molecular dynamics investigation of interfacial adhesion between oxidised bitumen and mineral surfaces

Surface modification of calcium sulfate whisker using thiol‐ene click reaction and its application in reinforced silicone rubber

Tough hybrid hydrogels based on simultaneous dual in situ sol–gel technique and radical polymerization

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