Silane coupling agent impact on surface features of modification of basalt fibers and the rheological properties of basalt fiber reinforced asphalt

Cheng, Xiao; Liu, Jianxun; Chen, Han; Zhang, Xiaorui; Wu, Zhishen

doi:10.1016/j.conbuildmat.2022.130182

Cited by 20 publications

(10 citation statements)

References 46 publications

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“…To enhance the interface performance between the fibers and asphalt materials, it is necessary to carry out physical or chemical modifications on the fiber surface. Compared to other modification methods, [10][11][12][13][14][15] the polyphenol coating modification technique offers mild reaction conditions, environmental friendliness, and simplicity in process. Without compromising the mechanical properties of the unmodified fibers, it provides a versatile secondary reaction platform and reaction sites for the construction of the fiber-asphalt interface structure, making it more suitable for fiber surface modification.…”

Section: Introductionmentioning

confidence: 99%

Thiol‐ene click chemistry for constructing transition layer to enhance the interface interaction between polyacrylonitrile fiber and styrene‐butadiene‐styrene modified asphalt

Zhang,

Xing,

Lin

et al. 2024

J of Applied Polymer Sci

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Based on the high chemical stability and excellent end‐group functionalization capability of polyhedral oligomeric silsesquioxane (POSS), this study utilized thiol‐functionalized POSS (POSS‐SH) in a click chemistry reaction with styrene‐butadiene‐styrene triblock copolymer (SBS). The objective was to design a functional group forming a chemical bond with the polymer matrix, resulting in the preparation of thiol‐functionalized polyacrylonitrile (PAN) fibers chemically cross‐linked with POSS‐SH/PAN/SBS hybrid material. This hybrid material not only enhanced the compatibility between the components but also facilitated a connection between the fiber and SBS, thereby improving the mechanical properties of the modified asphalt. Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FESEM), and atomic force microscopy analyses confirmed the successful modification of POSS‐SH/PAN fibers. FESEM analysis of the modified asphalt verified that POSS‐SH/PAN fibers contributed to strengthening the interfacial performance between the fiber and asphalt. Cone penetration and dynamic shear rheometer tests indicated that, compared to SBS‐modified asphalt, PAN/SBS and POSS‐SH/PAN/SBS‐modified asphalt exhibited enhanced shear strength, deformation resistance, and viscoelastic properties. Additionally, at 46°C, the storage modulus (G′) of 1.5% POSS‐SH/PAN/SBS‐modified asphalt increased by 11% compared to 1.5% PAN/SBS asphalt, with increases of 13.75% and 10.8% in loss modulus (G″) and complex modulus (G*), respectively.

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Section: Introductionmentioning

confidence: 99%

Thiol‐ene click chemistry for constructing transition layer to enhance the interface interaction between polyacrylonitrile fiber and styrene‐butadiene‐styrene modified asphalt

Zhang,

Xing,

Lin

et al. 2024

J of Applied Polymer Sci

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“…At present, the methods of fiber surface modification mainly include coupling agent modification [ 13 ], surface coating modification [ 14 ], plasma modification [ 15 ], and acid and alkali modification [ 16 ]. Among these methods, coupling agents, surface coatings, and plasma modification have less impact on the fiber, but their modification effects are temporary and can degrade over time.…”

Section: Introductionmentioning

confidence: 99%

Study of the Effect of NaOH Treatment on the Properties of GF/VER Composites Using AE Technique

Ming,

He,

et al. 2024

Materials

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The purpose of this study is to use acoustic emission (AE) technology to explore the changes in the interface and mechanical properties of GF/VER composite materials after being treated with NaOH and to analyze the optimal modification conditions and damage propagation process. The results showed that the GF surface became rougher, and the number of reactive groups increased after treating the GF with a NaOH solution. This treatment enhanced the interfacial adhesion between the GF and VER, which increased the interfacial shear strength by 25.31% for monofilament draw specimens and 27.48% for fiber bundle draw specimens compared to those before the GF was modified. When the modification conditions were a NaOH solution concentration of 2 mol/L and a treatment time of 48 h, the flexural strength of the GF/VER composites reached a peak value of 346.72 MPa, which was enhanced by 20.96% compared with before the GF was modified. The process of damage fracture can be classified into six types: matrix cracking, interface debonding, fiber pullout, fiber relaxation, matrix delamination, and fiber breakage, and the frequency ranges of these failure mechanisms are 0~100 kHz, 100~250 kHz, 250~380 kHz, 380~450 kHz, 450~600 kHz, and 600 kHz and above, respectively. This paper elucidates the fracture process of GF/VER composites in three-point bending. It establishes the relationship between the AE signal and the interfacial and force properties of GF/VER composites, realizing the classification of the damage process and characterizing the mechanism. The frequency ranges of damage types and failure mechanisms found in this study offer important guidance for the design and improvement of composite materials. These results are of great significance for enhancing the interfacial properties of composites, assessing the damage and fracture behaviors, and implementing health monitoring.

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“…In some special cases, the content of modifiers can be changed appropriately. Cheng, X. et al tested and evaluated six silane coupling agents for modifying the rheological properties of basalt-fiber-reinforced asphalt at different elevated temperature conditions and detailed the correlation between surface components and rheological properties in terms of temperature response [25]. The cited study provided guidance on the use of silane coupling agents in combination with mineral fillers to improve the overall performance of asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

Sun,

Kou,

et al. 2024

Applied Sciences

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The bond strength between basalt fibers and asphalt binders is an important parameter that can be used to evaluate the influence of basalt fibers on the mechanical properties of asphalt binders and asphalt mixtures. To date, however, there remains a lack of methods that can be used to assess the bond strength between basalt fibers and asphalt binders. This study employed a fiber-asphalt pull-out tester (POT). Significant upward, peak, and downward stages were observed from the relationship curves between the pull-out force (POF) and displacement, corresponding to the holding stage and reaching the maximum POF stage and the sliding or failure stage between fibers and asphalt binders. Maximum POF is recommended to calculate the bond strength between basalt fibers and asphalt binders. The types of asphalt binders suitable for basalt fibers and the appropriate fiber embedding depths for different types of asphalt binders guiding the selection of fiber length are recommended based on the influence of fiber embedding depth and asphalt binders on the fiber–asphalt bond strength. In addition, surface energy was used to calculate the bond strength as well. Surface energy was determined from contact angle measurements using the sessile drop method. Furthermore, a scanning electron microscope (SEM) was employed to examine the bond mechanism between asphalt binders and basalt fibers. These experiments showed how basalt fibers serve to reinforce asphalt mixtures by bonding with asphalt binders.

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Silane coupling agent impact on surface features of modification of basalt fibers and the rheological properties of basalt fiber reinforced asphalt

Cited by 20 publications

References 46 publications

Thiol‐ene click chemistry for constructing transition layer to enhance the interface interaction between polyacrylonitrile fiber and styrene‐butadiene‐styrene modified asphalt

Thiol‐ene click chemistry for constructing transition layer to enhance the interface interaction between polyacrylonitrile fiber and styrene‐butadiene‐styrene modified asphalt

Study of the Effect of NaOH Treatment on the Properties of GF/VER Composites Using AE Technique

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

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