Synergy Effect of Nano-Organic Palygorskite on the Properties of Star-Shaped SBS-Modified Asphalt

Liu, Shuai; Gao, Yuchao; Jin, Jiao; Chen, Huiwen; Liu, Xinyu; Liu, Ruohua; Guan, Qingjun; Wu, Yan; Long, Huaqiang; Qian, Guoping

doi:10.3390/polym13060863

Cited by 15 publications

(3 citation statements)

References 33 publications

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“…These findings support previous studies indicating that the use of alkaline aggregates enhances bitumen adhesion. 51 In the bitumen-limestone aggregate system, the addition of ZIF-67-PDA-PET/SBS-MA resulted in an increase of 14.37% and 6.44% in adhesion work, and an increase of 18.34% and 14.06% in CR, compared to SBS-MA and PET/SBS-MA, respectively.…”

Section: Analysis Of the Adhesion Properties Of Asphaltmentioning

confidence: 97%

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

He,

Ren,

Muhammad

et al. 2023

Polymer Composites

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Utilizing efficient and cost‐effective modifiers is essential for the development of high‐performance asphalt materials. In this study, a polydopamine (PDA) chelated cobalt ion (Co2+)‐assisted in situ growth strategy was employed to anchor nanoporous zeolite imidazolium salt framework‐67 (ZIF‐67) on polyester (PET) fiber substrates for the preparation of styrene‐butadiene‐styrene block copolymer‐modified asphalt (SBS‐MA). Experimental results indicated that optimal fiber incorporation of 1.5% led to the best interfacial interaction at the modified asphalt fracture section. ZIF‐67 nanoporous structure acted as an organic–inorganic hybridization interfacial layer to enhance the fiber–asphalt interfacial interaction. The adhesion work of the modified fiber with SBS‐MA increased by 42.12%. Furthermore, the adhesion work, peeling work, and compatibility ratio of modified asphalt with aggregates were also improved. Similarly, the complex modulus of the 1.5% ZIF‐67–PDA–PET/SBS‐MA at 46°C was increased by 131.30% in comparison with that of the pristine SBS‐MA. More importantly, the synergistic effect of the highly thermally stable PET fibers and ZIF‐67 nanocrystals improved the thermal decomposition of SBS‐MA. These results suggest that ZIF‐67–PDA–PET fiber holds great promise for application in designing novel materials for the construction industry.

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Section: Analysis Of the Adhesion Properties Of Asphaltmentioning

confidence: 97%

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

He,

Ren,

Muhammad

et al. 2023

Polymer Composites

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show abstract

“…Among them, SBS-modified asphalt has shown great potential in meeting the needs of the pavement industry. However, some problems with the pavement use of SBS-modified asphalt exist [2,3]. For example, under the repeated action of heavy traffic load and harsh climatic conditions, the performance of SBS-modified asphalt pavement has yet to be further improved, and the modification method is relatively simple.…”

Section: Introductionmentioning

confidence: 99%

Study on the performance and aging low temperature performance of GO / SBS modified asphalt

2023

Matéria (Rio J.)

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Graphene oxide (GO) has attracted more and more attention in asphalt pavement due to its excellent performance. However, most current research is limited to GO modified base asphalt, and the modification effect is insignificant. In this paper, GO / SBS-modified asphalt was prepared by high-speed shearing. The effects of GO on the physical properties, storage stability, low-temperature performance, and aging resistance of SBS-modified asphalt were studied. A low-temperature beam bending test analyzed the low-temperature performance of GO / SBS composite modified asphalt mixture before and after aging. The results show that adding GO improves SBS-modified asphalt's high-temperature performance, aging resistance, and storage stability. When the content of GO is 0.75%, the physical properties of modified asphalt are the best. The low-temperature rheological properties of modified asphalt with GO before aging are slightly lower than those of SBS-modified asphalt. However, adding GO improves the low-temperature rheological properties of GO/SBS modified asphalt after aging. GO-modified asphalt slightly improves the low-temperature toughness of the mixture under non-aging and short-term aging. However, it still makes the mixture maintain good low-temperature performance under long-term aging. GO / SBS modified asphalt mixture has excellent low-temperature crack resistance before and after aging, and GO / SBS composite modified asphalt can effectively alleviate the damaging effect of aging on the low-temperature crack resistance of asphalt mixture and prolong the service life of the pavement.

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“…In the process of road construction, styrene–butadiene–styrene (SBS)-modified asphalt and polyurethane (PU)-modified asphalt currently play significant roles in improving the pavement performance and extending the pavement life, and are widely used in high-grade asphalt pavement surface layers due to their excellent high- and low-temperature performance and good fatigue resistance [ 5 , 6 ]. With the development of nanotechnology, nano-modified asphalt has become one of the highlights of agro-scientific research in the field of road materials [ 7 – 9 ]. Nanomaterials are renowned for their excellent specific surface area, small size effect, and macroscopic quantum tunneling effect.…”

Section: Introductionmentioning

confidence: 99%

A study on the rheological properties and modification mechanism of graphene oxide/polyurethane/SBS-modified asphalt

Zhang

et al. 2022

PLoS ONE

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To study the effect of graphene oxide (GO) on thermoplastic polyurethane (TPU)/styrene–butadiene–styrene (SBS)-modified asphalt and reveal the modification mechanism, GO/TPU/SBS-modified asphalt was prepared by high-speed shearing Hongjuan et al. (2020). The physical properties of the modified asphalt were measured via a basic index test, and the dynamic rheological behavior of the modified asphalt was characterized by a dynamic shear rheometer (DSR), a bending beam rheometer (BBR), and other technical means. Moreover, double-beam UV-visible (UV-Vis) spectrophotometry and Fourier-transform infrared spectroscopy (FTIR) were conducted to determine the mechanism of asphalt modification from the microscopic perspective. The experimental results reveal that the GO content can improve the basic mechanical properties, high-temperature stability, and low-temperature cracking resistance of TPU/SBS-modified asphalt. When the GO content is 0.5%, the ductility and softening point of the modified asphalt are found to be significantly increased, and the degree of penetration is slightly decreased. Moreover, with the increase of the GO content, the rutting resistance and crack resistance of the asphalt materials are improved. Via the joint action of physical modification and chemical reaction, GO can form a stable structure with asphalt molecules, enhance the stability between asphalt molecules, and increase the colloidal content of macromolecules in the modified asphalt components.

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Synergy Effect of Nano-Organic Palygorskite on the Properties of Star-Shaped SBS-Modified Asphalt

Cited by 15 publications

References 33 publications

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

Study on the performance and aging low temperature performance of GO / SBS modified asphalt

A study on the rheological properties and modification mechanism of graphene oxide/polyurethane/SBS-modified asphalt

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