Properties and mechanism of waterborne epoxy resin-SBR composite modified emulsified asphalt

Liu, Fuqiang; Zheng, Min; Fan, Xianpeng; Li, Hongyin; Wang, Fei; Lin, Xiaoyu

doi:10.1016/j.conbuildmat.2020.122059

Cited by 36 publications

(10 citation statements)

References 7 publications

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“…Te stable spatial network structure improves the high-temperature rutting resistance of SBS/SBR modifed emulsifed asphalt. Tis conclusion is consistent with Liu's research results on WER/SBR modifed emulsifed asphalt [42]. His study concluded that the crosslinked three-dimensional network structure formed by the WER/SBR modifed emulsifed asphalt could improve hightemperature stability.…”

Section: Fluorescence Microscopy Testsupporting

confidence: 86%

“…Tis stage is the main stage of the mass-loss of emulsifed asphalt. Liu [42] measured the mass-loss of WER/SBR modifed emulsifed asphalt through the DSC test and found that the main stage of mass-loss occurred at 300 °C-420 °C, and the decomposition peak of WER/SBR modifed emulsifed asphalt appeared at about 50 °C. SBS/SBR modifed emulsifed asphalt has a higher mass-loss temperature and a higher decomposition temperature than WER/SBS modifed emulsifed asphalt, indicating that SBS/SBR modifed emulsifed asphalt has excellent high-temperature stability at this stage.…”

Section: Tg-dsc Testmentioning

confidence: 99%

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Composition and Performance Evaluation of SBS/SBR Modified Emulsified Asphalt for Tack Coat on Airport Pavement

Wang

Xie

et al. 2022

Advances in Materials Science and Engineering

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Asphalt concrete pavement is gradually being adopted in cement concrete pavement repair and paving due to its short construction period and low vibration to aircraft. However, the performance of the interlayer binder is the critical factor affecting the paving effect. For the preparation of interlayer high-performance emulsified asphalt suitable for airport pavement, the type and dosage of modifier and emulsifier were taken as factors and levels for the orthogonal test. Combined with the evaporation residue, softening point, penetration, ductility, and Engla viscosity indexes, the range analysis was carried out to determine the optimal dosage of modifier and emulsifier. Furthermore, the dynamic shear rheology test (DSR), fluorescence microscope test, TG-DSC test, and shear and tensile tests were used to evaluate the technical properties of SBS/SBR modified emulsified asphalt. These results showed that the best blending mass ratio of SBS/SBR modified emulsified asphalt is 1.5% SBS + 3% SBR + 1% emulsifier. Temperature sweep at 48°C, compared with SBS/SBR modified emulsified asphalt, the complex shear modulus (G ∗ ) of SBS/SBR modified emulsified asphalt increased by 71% and 75%, while the rutting factor(G ∗ /sinδ) increased by 83% and 86%, respectively, which indicates that its shear deformation resistance and rutting resistance have been significantly improved. The Han curve indicates that the SBS/SBR modifier has excellent compatibility with asphalt and can maintain a stable state at a lower frequency. Before demulsification, SBS/SBR modifier and emulsified asphalt formed a stable spatial network structure. After demulsification, the continuous phase and the dispersed phase were more closely integrated, so that the emulsified asphalt exhibited better bonding performance. At different temperatures, by increasing the spraying volume, the shear and tensile strength of SBS/SBR modified emulsified asphalt increased first and then decreased. At 25°C, the maximum shear and tensile strengths are 0.86 MPa and 0.65 MPa. This study demonstrated that SBS/SBR modified emulsified asphalt formed a stable spatial network structure, giving it excellent technical properties, and can be widely used for tack coat on airport pavement.

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Section: Fluorescence Microscopy Testsupporting

confidence: 86%

Section: Tg-dsc Testmentioning

confidence: 99%

Composition and Performance Evaluation of SBS/SBR Modified Emulsified Asphalt for Tack Coat on Airport Pavement

Wang

Xie

et al. 2022

Advances in Materials Science and Engineering

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“…Imidazole can be used as an epoxy catalyst and a curing agent to render a catalytic effect (Step 3 in Figure 1a). 34,35 Finally, it forms a semi-interpenetrating network structure with the epoxy resin. This method not only introduces high glass-transition-temperature components into the epoxy resin but also forms a polymer with a high cross-linking density to achieve a good modification effect.…”

Section: Preparation Of Paasmentioning

confidence: 99%

Preparation of waterborne polyimide‐modified epoxy resin with high thermal properties and adhesion properties

Xing

Mao

Yang

et al. 2022

J of Applied Polymer Sci

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In response to the theme of environmental protection and green development in the world in the recent years, waterborne epoxy resin has received more and more attention. Waterborne epoxy resin has lower toxicity, but its low toughness limits the application range of waterborne epoxy resin. Here, we first proposed a method of toughening waterborne epoxy resin with aqueous polyamide salt solution. In this article, a series of waterborne polyamic acid salts is used as modification polymer to improve the high‐temperature resistance and other properties of waterborne epoxy resins by copolymerization modification. Waterborne polyamic acid salt is dispersed uniformly in the epoxy resin. After curing, by compared with the pure epoxy resin, a semi‐interpenetrating network is formed, the cross‐linking density and the high‐temperature resistance of the material are increased, and the glass transition temperature increases from 105°C to 116°C. The storage modulus at 300°C increases from 6.15 to 15.76 MPa. Thermogravimetric Analysis results reveal that the corresponding temperatures of 5% and 10% weight loss increase from 403°C and 419°C to 415°C and 435°C, respectively. At the same time, the toughness of the imide chain segment and polar groups lead to the improved adhesion of the epoxy system, the peeling strength increase from 0.51 to 1.24 N cm−1, and the lap shear strength at high temperature (100°C) increase from 0.58 to 16.97 MPa. The water absorption decreases from 1.51% to 0.66%. The developed waterborne epoxy resin is expected to be used as a high‐temperature waterborne epoxy coating in high‐temperature coatings and other applications.

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“…In addition, another great rubber material for practical use in these is styrene butadiene rubber (SBR) as it has elasticity, frictional resistance, and mechanical strength similar to EPDM [18][19][20]. SBR is formed in the polymerization process, which allows for the production of a low reactive viscosity material with all the features of natural rubber, and was firstly developed in the 1930s by Interessen-Gemeinschaft Farbenindustrie AG in Germany [21][22][23]. Thanks to low costs, it has been used not only in everyday objects but also in protective coatings exposed to impact [24].…”

Section: Introductionmentioning

confidence: 99%

Safety Comes First: Novel Styrene Butadiene Rubber (SBR) and Ethylene Propylene Diene Monomer (EPDM) Surfaces as a Response to Sport Injuries

et al. 2021

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An athlete’s performance depends not only on the shoes they wear but also on the surface used in sports facilities. In addition, it can significantly contribute to reducing injuries, which are easy to get during sports competitions. In the present study, we wanted to investigate whether recycled styrene butadiene rubber (SBR) and ethylene propylene diene monomer (EPDM) could be used in the production of sports surfaces. For this purpose, we designed three different sports surfaces: (1) SBR covered with a thin EPDM spray layer on the top, (2) clean EPDM, and (3) bottom SBR layer with the top layer of EPDM. The test program of these surfaces included in its scope: shock absorption, vertical deformation, tensile strength, abrasion resistance, and slip resistance tests. Our research also involved the influence of the substrate under surface, temperature, and surface conditions. Presented results show that both materials, in the right proportions, can be used in the production of sports surfaces.

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Properties and mechanism of waterborne epoxy resin-SBR composite modified emulsified asphalt

Cited by 36 publications

References 7 publications

Composition and Performance Evaluation of SBS/SBR Modified Emulsified Asphalt for Tack Coat on Airport Pavement

Composition and Performance Evaluation of SBS/SBR Modified Emulsified Asphalt for Tack Coat on Airport Pavement

Preparation of waterborne polyimide‐modified epoxy resin with high thermal properties and adhesion properties

Safety Comes First: Novel Styrene Butadiene Rubber (SBR) and Ethylene Propylene Diene Monomer (EPDM) Surfaces as a Response to Sport Injuries

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