Effect of Phenolic Resin on the Rheological and Morphological Characteristics of Styrene-Butadiene Rubber-Modified Asphalt

Abstract

To improve the thermal-aging stability and rheological performance of styrene–butadiene rubber (SBR)-modified asphalt, phenolic resin (PF) was introduced in the process of preparing SBR-modified asphalt by melt blending. The effect of PF and SBR on the high and low-temperature rheological performance of the asphalt binder before and after aging was evaluated by a temperature and frequency sweep using a dynamic shear rheometer (DSR). Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and fluorescence microscopy (FM) were used to further investigate the effect of PF and SBR on the thermal stability and morphological characteristics of the asphalt binder. The results showed that the addition of PF can enhance the high-temperature deformation resistance and short-term aging resistance of SBR-modified asphalt. Moreover, PF and SBR form an embedded network structure within the asphalt binder and alleviate the deterioration of the polymer during the aging process. Compared with SBR-modified asphalt, the chemical system of composite-modified asphalt is more stable, and it can remain stable with an aging time of less than 5 h.

Hard carbon anodes derived from phenolic resin/sucrose cross‐linking network for high‐performance sodium‐ion batteries

“…In addition, the appearance of a stretching vibration peak of the C═O bond at 1704.8 cm −1 , which may be resulted from the dehydration reaction of sucrose during the solvothermal process, 32 can also facilitate the formation of hydrogen bonds and intermolecular interaction. 33,34 The variation of the surface functional groups during the solvothermal treatment was further confirmed by XPS analysis. Figure 1B and Supporting Information: Figure S1 demonstrate that the O element is present in 55.3 wt% for sucrose and 36.3 wt% for phenolic resin, respectively, which drops to 32.4 wt% for PF-S after the cross-linking process due to the dehydration reaction.…”

“…Compared with phenolic resin and sucrose, the disappearance of the stretching and bending vibration of –OH groups at 3562.2 cm −1 and weakened absorption bands of C–O around 1000–1460 cm −1 suggest the existence of strong hydrogen bonds 31 in the phenolic resin/sucrose cross‐linked product (PF‐S). In addition, the appearance of a stretching vibration peak of the C═O bond at 1704.8 cm −1 , which may be resulted from the dehydration reaction of sucrose during the solvothermal process, 32 can also facilitate the formation of hydrogen bonds and intermolecular interaction 33,34 …”

Molten salt assisted fabrication of coal-based carbon anode materials for efficient Na ion storage

“…26 While sucrose is mainly consisted of C–OH functional groups, identified as the stretching vibration of the C–O group located between 1000 cm −1 –1300 cm −1 and stretching vibration absorption of the –OH group at 3450 cm −1 . 27 In addition, the weak peak at ∼3560 cm −1 indicated the existence of free –OH groups. 28 For BCoal-SM, a significant decrease in the intensity of the C–O absorption peaks at 1000 cm −1 –1300 cm −1 and the disappearance of the free –OH groups peak at ∼3560 cm −1 demonstrated the occurrence of the crosslinking reaction between coke coal and sucrose.…”

Investigating the Effectiveness of Nano-Montmorillonite on Asphalt Binder from Rheological, Thermodynamics, and Chemical Perspectives

“…Substances with different molecular weights of asphalt binder diffused at different rates in GPC machine chromatographic columns, and molecules of different sizes were sequentially separated to obtain corresponding test results [ 39 , 40 ]. The molecular weight distribution of each group of samples was obtained and the SMS, MMS, and LMS of the bound material were calculated according to the elution time and molecular weight conversion.…”