Studies on the secondary modification of SBS modified asphalt by the application of octadecyl amine grafted graphene nanoplatelets as modifier

Han, Meizhao; Li, Jing; Muhammad, Yaseen; Yin, Yuhua; Yang, Jing; Song, Yang; Duan, Shaochan

doi:10.1016/j.diamond.2018.08.011

Cited by 65 publications

(23 citation statements)

References 30 publications

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“…Le et al [40] found that GNPs as a modifier and composited with SBS to prepare modified asphalt have serious compatibility problems. In our previous studies [41,42,43], polystyrene and octadecyl amine grafting onto GNPs showed the enhancing effect on the mechanical properties of SBS-based modified asphalt. However, in these studies, GNPs and SBS were assumed to have been modified physically rather than chemically.…”

Section: Introductionmentioning

confidence: 98%

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Han

Muhammad

et al. 2018

Polymers

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Styrene-butadiene styrene graphene oxide nanoplatelets (SBS-g-GOs)-modified asphalt was prepared by reacting thiolated GOs (GOs-SH) with SBS in asphalt using a thiol-ene click reaction. The temperature resistance and mechanical properties of asphalts were analyzed by dynamic shear rheology (DSR) and multiple-stress creep-recovery (MSCR) tests, which revealed that an optimum amount of GOs-SH (0.02%) can effectively improve the low temperature and anti-rutting performance of SBS asphalt. Segregation experiments showed that SBS-g-GOs possessed good stability and dispersion in base asphalt. Fluorescence microscopy results revealed that the addition of GOs-SH promoted the formation of SBS network structure. Textural and morphological characterization of GOs-SH and SBS were achieved by Fourier transform infra-red (FT-IR) spectroscopy, energy-dispersive spectroscopy (EDS), atomic-force microscopy (AFM), X-ray diffraction (XRD), and scanning electron microscopy (SEM), while surface chemical composition was tested by X-ray photoelectron spectroscopy (XPS). Based on textural characterization data, a suitable reaction mechanism was proposed that involved the preferential reaction between GOs-SH and 1,2 C=C of SBS. The currently designed GOs-SH incorporated asphalt via thiol-ene click reaction provides new ideas for the preparation of modified asphalt with enhanced mechanical properties for target-oriented applications.

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Section: Introductionmentioning

confidence: 98%

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Han

Muhammad

et al. 2018

Polymers

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“…As the original evaluation system is not suitable for polymer‐modified asphalt and to better evaluate the high‐temperature anti‐rutting performance of asphalt, this study used DSR for MSCR test according to AASHTO TP70 . In this test, a shear stress of 0.1 KPa and 3.2 KPa was applied to the asphalt sample after rotating thin film oven test (RTFOT) for 1 s, followed by a rest period of 9 s…”

Section: Methodsmentioning

confidence: 99%

“…Although being so useful in modified asphalt preparation, GNPs still suffer from serious compatibility problems with asphalt. Han et al . used octadecyl amine (ODA)‐grafted GNPs, which was in turn applied for the preparation of ODS‐GNPs/SBS‐modified asphalt, which exhibited larger difference between the top and the bottom softening points than pristine SBS‐modified asphalt.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and evaluation of high‐temperature properties of butylated graphene oxide composite incorporated SBS (C₄H₉‐GO/SBS)‐modified asphalt

Duan

Muhammad

et al. 2019

J of Applied Polymer Sci

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Graphene nanoparticles (GNPs) added styrene-butadiene-styrene (SBS)-modified asphalt suffers from serious compatibility and agglomeration problems. To tackle these problems, in this study, graphene oxide (GO) was mixed with bromobutane to synthesize butylated graphene oxide (C 4 H 9 -GO) composite, which was in turn compounded with SBS for the preparation of C 4 H 9 -GO/SBS-modified asphalt. C 4 H 9 -GO/SBS-1.0-modified asphalt exhibited the best performance in terms of 11.4% increased softening point, 19.3% increased ductility, and 10.2% reduction in penetration as compared to 5% SBS-modified asphalt. Dynamic shear rheometer and multistress creep recovery tests showed that at 1.0% C 4 H 9 -GO contents, C 4 H 9 -GO/SBS composite-modified asphalt exhibited the best high-temperature performance and low stress sensitivity. Microscopic characterization of C 4 H 9 -GO via Fourier transform infrared spectroscopy, X-ray diffraction, and Raman spectroscopy revealed successful bonding between C 4 H 9 and GO, increasing interlayer spacing in GO. Atomic force microscopy and scanning electron microscopy analysis showed the superior elasticity of C 4 H 9 -GO than GNPs. Differential scanning calorimetry analysis indicated that C 4 H 9 -GO sheets can be stabilized by SBS through π-π stacking with the polystyrene chains. This study awarded to the preparation of novel C 4 H 9 -GO/SBS-modified asphalt with superior mechanical property can be deemed of potential value and applications in construction and highway industries.GNPs have also been applied as modifiers for the preparation of modified asphalts. Han et al., 10 via in situ polymerization strategy, synthesized polystyrene-GNPs (PS-GNPs) and added them to styrene-butadiene-styrene (SBS)-modified asphalt, which exhibited improved softening point and high-temperature rutting resistance performance than the parent asphalt. The National Cooperative Highway Research Program found that compared to conventional asphalt binders, GNPs-enhanced asphalt binders exhibit excellent flexural strength at low temperatures, but the fracture energy of Additional Supporting Information may be found in the online version of this article.

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“…[32,33]. In our previous studies, octadecyl amine (ODA)-grafted graphene nanoplatelets (GNPs) were reported with excellent compatibility in asphalt [34]. In line with those studies, it is worth studying the effect of ODA as a modifier in WRP and, in turn, apply it in the preparation of modified asphalt.…”

Section: Introductionmentioning

confidence: 95%

“…Thus, herein, the compatibility of WRP in asphalt and further improvements of the properties of SBS-modified asphalt were carried out by grafting ODA via a covalent bonding grafting strategy [34]. ODA was decorated on the surface of WRP and was used as a modifier to prepare ODA-WRP/SBS-modified asphalt.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Octadecyl Amine Grafted over Waste Rubber Powder (ODA-WRP) and Properties of Its Incorporation in SBS-Modified Asphalt

et al. 2019

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Through a covalent grafting reaction, octadecyl amine (ODA) was grafted on the surface of waste rubber powder (WRP) to obtain an ODA-WRP modifier, which was in turn compounded with a styrene-butadiene-styrene block copolymer (SBS) to prepare ODA-WRP/SBS-modified asphalt. The three major indicators (i.e., dynamic shear rheometer (DSR), multi-stress creep recovery (MSCR), and separation tests) showed that 1-ODA-WRP effectively improved the complex shear modulus (G*), elastic Modulus (G′), and loss modulus (G″) by 36.47%, 40.57%, and 34.77% (64 °C and 10 Hz), respectively, as compared to pristine SBS-modified asphalt. Fluorescence microscopy (FM) results concluded that the enhancement in mechanical properties was accredited to the better compatibility of various components in asphalt and establishment of network structure between ODA-WRP and SBS in ODA-WRP/SBS-modified asphalt. Fourier infrared spectroscopy (FT-IR) and scanning electron microscope (SEM) analyses confirmed the successful synthesis of ODA-WRP. This study could be of great help in synthesizing ODA-WRP asphalt modified with SBS for highways and construction applications.

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Studies on the secondary modification of SBS modified asphalt by the application of octadecyl amine grafted graphene nanoplatelets as modifier

Cited by 65 publications

References 30 publications

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Synthesis and evaluation of high‐temperature properties of butylated graphene oxide composite incorporated SBS (C₄H₉‐GO/SBS)‐modified asphalt

Preparation of Octadecyl Amine Grafted over Waste Rubber Powder (ODA-WRP) and Properties of Its Incorporation in SBS-Modified Asphalt

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Studies on the secondary modification of SBS modified asphalt by the application of octadecyl amine grafted graphene nanoplatelets as modifier

Cited by 65 publications

References 30 publications

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Preparation and Properties of SBS-g-GOs-Modified Asphalt Based on a Thiol-ene Click Reaction in a Bituminous Environment

Synthesis and evaluation of high‐temperature properties of butylated graphene oxide composite incorporated SBS (C4H9‐GO/SBS)‐modified asphalt

Preparation of Octadecyl Amine Grafted over Waste Rubber Powder (ODA-WRP) and Properties of Its Incorporation in SBS-Modified Asphalt

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Synthesis and evaluation of high‐temperature properties of butylated graphene oxide composite incorporated SBS (C₄H₉‐GO/SBS)‐modified asphalt