The effects of silane coupling agents on the mechanical properties of basalt fiber reinforced poly(butylene terephthalate) composites

The purpose of this study was to examine the effects of silane coupling agent modifications on the mechanical performance of the basalt fiber (BF)-reinforced acrylonitrile–butadiene–styrene (ABS) composites. Three different silane coupling agents were used. The mechanical properties of the composites were determined by the tensile, flexural, impact tests, and dynamic mechanical analysis (DMA). According to the test results, the tensile strength increased with the use of (3-aminopropyl) triethoxysilane (AP) and 3-(trimethoxysilyl) propylmethacrylate (MA), while the use of (3-glycidyloxypropyl) trimethoxysilane (GP) reduced the tensile strength. All the silane modifications improved the flexural strength and modulus and the highest improvement was achieved with the use of AP. No remarkable difference was observed in impact properties with the use of silane coupling agents. The addition of BF significantly improved the elastic modulus of the ABS regardless of the modification type, while the further improvements were achieved through the use of AP and MA. In brief, AP showed the highest performance among the studied silane coupling agents due to the covalent bond formation between the amino group of AP and the nitrile group of styrene–acrylonitrile (SAN) matrix.

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“…The results are given in our previous study. 34 These findings clearly proved the presence of the silane coupling agents on the BF surface.…”

Section: Silane Treatment Of Basalt Fibermentioning

confidence: 71%

The effects of fiber silane modification on the mechanical performance of chopped basalt fiber/ABS composites

Arslan

Doğan

2019

Journal of Thermoplastic Composite Materials

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“…Compared to the available literature on basalt fiber as a material reinforcing thermoset resins and concretes, there are only several publications that have discussed the subject of thermoplastic composites reinforced with this fiber [21,22,23,24]. Few publications are also available on polylactide-basalt composites [25,26,27,28,29].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Composites of Polylactide with Basalt and Carbon Fibers and Their Thermal Treatment

Kuciel

Romańska

2018

Materials

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In this research, polylactide was hybrid-reinforced and heat-treated in order to obtain durable structural materials with the use of eco-friendly components. Differential scanning calorimetry (DSC) analysis, tensile tests at various temperatures, Vicat tests, impact tests, and microscopic observations were conducted on the annealed and non-heat-treated specimens. The theoretical and true density, as well as water absorption, were also determined. The simultaneous introduction of chopped carbon and basalt fibers in equal mass fractions of 7.5% and 12.5% resulted in satisfactory increases in stiffness and tensile strength. The reinforcing effect was more efficient for the heat-treated composites, especially at elevated temperatures. Heat treatment significantly increased the degree of crystallinity of the matrix, improving heat resistance and reducing water absorption. It also reduced the stress concentrations in the injection-molded specimens.

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“…More importantly, the most common technique of processing thermoplastic composites is injection molding, which enables the production of large quantities of parts with complex shapes within strict dimensional tolerances [ 10 ]. Over the last several decades, basalt fibers (BFs) have come into consideration as potential reinforcement of composite materials [ 11 , 12 , 13 , 14 ] due to their numerous attractive properties. Thermoplastic BF-reinforced composites are a realistic answer to market demands for materials with lower environmental impact, increased recyclability, ease of processing, and lower cost, while maintaining all of the thermal and mechanical benefits offered by composite materials.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Polarization in Thermoplastic Basalt Fiber-Reinforced Composites

2020

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The aim of this work was to study the interfacial behavior of basalt-fiber-reinforced thermoplastic blends of polypropylene and poly(butylene terephthalate) (PP/PBT). We examined the effect of two compatibilizers and two basalt fiber (BF) sizings: commercial (REF) and experimental (EXP). Differential scanning calorimetry was used to assess the influence of BFs on the phase structure of obtained composites. Furthermore, dielectric relaxation spectroscopy was used for the first time to non-destructively study the interfacial adhesion within an entire volume of BF-reinforced composites by assessing the α relaxation, DC conductivity, and Maxwell–Wagner–Sillars (MWS) polarization. The fiber–matrix adhesion was further investigated using the Havriliak–Negami model. Using complex plane analysis, the dielectric strength, which is inversely related to the adhesion, was calculated. The composites reinforced with EXP fibers showed significantly lower values of dielectric strength compared to the REF fibers, indicating better adhesion between the reinforcement and blend matrix. Static bending tests also confirmed improved fiber adhesion with EXP fibers, while also suggesting a synergistic effect between compatibilizer and sizing in enhancing interfacial properties. Thus, we conclude that substantially improved adhesion of PP/PBT BF-reinforced composites is the result of mutual interactions of functional groups of blend matrix, mostly from blend compatibilizer, and fiber surface due to sizing.

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The effects of silane coupling agents on the mechanical properties of basalt fiber reinforced poly(butylene terephthalate) composites

Cited by 104 publications

References 51 publications

The effects of fiber silane modification on the mechanical performance of chopped basalt fiber/ABS composites

The effects of fiber silane modification on the mechanical performance of chopped basalt fiber/ABS composites

Hybrid Composites of Polylactide with Basalt and Carbon Fibers and Their Thermal Treatment

Interfacial Polarization in Thermoplastic Basalt Fiber-Reinforced Composites

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