Electrophoretic deposition of nano-silica onto carbon fiber surfaces for an improved bond strength with cementitious matrices

Li, Huanyu; Liebscher, Marco; Curosu, Iurie; Choudhury, Soumyadip; Hempel, Simone; Davoodabadi, Maliheh; Dinh, Tin Trong; Yang, Jian

doi:10.1016/j.cemconcomp.2020.103777

Cited by 42 publications

(38 citation statements)

References 66 publications

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“…Hence, an alternative approach has been developed using a thermalstable impregnation suspension based on mineral particles [11]. Challenges related to this approach are difficulties to infiltrate the densely packed CF bundle as well as the hydrophobic CF surface hindering an efficient bond between the fiber and water-based mineral suspensions [12]. To overcome these issues, much work has been done in tailoring the surface wettability as well as the surface polarities of CFs [7,13].…”

Section: Introductionmentioning

confidence: 99%

Effect of electrophoretic deposition of micro-quartz on the microstructural and mechanical properties of carbon fibers and their bond performance toward cement

Liebscher

et al. 2022

J Mater Sci

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An electrophoretic deposition (EPD) process of micro-quartz (MQ) powder is applied to carbon fibers (CFs) with the aim to enhance their interfacial bond to cementitious matrices and to investigate its influence on the microstructural and mechanical properties of the CFs itself. The electrophoretic mobility of the MQ particles with negative charge in aqueous media was confirmed by potential sweep experiments and zeta-potential measurements. High amounts of MQ were successfully deposited onto the fiber surface, as proven by scanning electron microscopy. Single-fiber tension tests and thermogravimetric analysis showed that EPD treatment had little impact on the tensile properties and thermal stability of the modified fibers. However, storing the CFs in cement pore solution impaired temperature stability of untreated and modified fibers. X-ray diffraction and Raman spectroscopy reveal specific changes of CF's microstructure upon EPD treatment and immersion in pore solution. Single-fiber pullout tests showed that the pullout resistance of MQ-modified CFs was enhanced, relative to untreated CFs. This augmentation can be explained by an enhanced interlocking mechanisms between CF and matrix due to the deposited quartz particles on the CF surface.

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Section: Introductionmentioning

confidence: 99%

Effect of electrophoretic deposition of micro-quartz on the microstructural and mechanical properties of carbon fibers and their bond performance toward cement

Liebscher

et al. 2022

J Mater Sci

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“…In the construction sector, particularly in concrete industry, crystalline SiO 2 is widely applied in the shape of aggregates and smaller sized fillers. As amorphous SiO 2 it is used to accelerate cement hydration [10,11] and tailor 3D printing properties [12].…”

Section: Introductionmentioning

confidence: 99%

“…As a filler in other composites' development, SiO 2 is used to achieve specific properties, such as microwave absorption [13]. Silica is also used in coatings [10,14], medicine [15,16], as a reinforcement material [17] and in applications aiming to improve the mechanical response of the polymer matrix [4,18,19]. All these applications and research usages of silica are related to traditional manufacturing processes, such as films production, blend mixing, casting, etc.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Mechanical, Thermal and Antimicrobial Properties of Additively Manufactured Polylactic Acid with Optimized Nano Silica Content

et al. 2021

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The scope of this work was to create, with melt mixing compounding process, novel nanocomposite filaments with enhanced properties that industry can benefit from, using commercially available materials, to enhance the performance of three-dimensional (3D) printed structures fabricated via fused filament fabrication (FFF) process. Silicon Dioxide (SiO2) nanoparticles (NPs) were selected as fillers for a polylactic acid (PLA) thermoplastic matrix at various weight % (wt.%) concentrations, namely, 0.5, 1.0, 2.0 and 4.0 wt.%. Tensile, flexural and impact test specimens were 3D printed and tested according to international standards and their Vickers microhardness was also examined. It was proven that SiO2 filler enhanced the overall strength at concentrations up to 1 wt.%, compared to pure PLA. Atomic force microscopy (AFM) was employed to investigate the produced nanocomposite extruded filaments roughness. Raman spectroscopy was performed for the 3D printed nanocomposites to verify the polymer nanocomposite structure, while thermogravimetric analysis (TGA) revealed the 3D printed samples’ thermal stability. Scanning electron microscopy (SEM) was carried out for the interlayer fusion and fractography morphological characterization of the specimens. Finally, the antibacterial properties of the produced nanocomposites were investigated with a screening process, to evaluate their performance against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus).

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“…Silicon dioxide (SiO 2 ), commonly referred to as silica, which may exist in the amorphous and crystalline structure, was found to be a useful filler for improving the mechanical performance of polymeric materials [11,12]. The silica, as an additive, is used in coatings, food, and biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

“…The improving dispersibility of silica within the PLA matrix during fabrication of PLA/silica composites would lead to enhancing the mechanical, thermal, and rheological properties of neat PLA [21]. The presence of silanol groups, siloxane bridges, and hydroxyl groups on the silica would facilitate the surface functionalization of silica for biomedical, catalysis, and sensor applications [12].…”

Section: Introductionmentioning

confidence: 99%

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

Kaseem

Rehman

Hossain³

et al. 2021

Polymers

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Polylactic acid (PLA)/silica composites as multifunctional high-performance materials have been extensively examined in the past few years by virtue of their outstanding properties relative to neat PLA. The fabrication methods, such as melt-mixing, sol–gel, and in situ polymerization, as well as the surface functionalization of silica, used to improve the dispersion of silica in the polymer matrix are outlined. The rheological, thermal, mechanical, and biodegradation properties of PLA/silica nanocomposites are highlighted. The potential applications arising from the addition of silica nanoparticles into the PLA matrix are also described. Finally, we believe that a better understanding of the role of silica additive with current improvement strategies in the dispersion of this additive in the polymer matrix is the key for successful utilization of PLA/silica nanocomposites and to maximize their fit with industrial applications needs.

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Electrophoretic deposition of nano-silica onto carbon fiber surfaces for an improved bond strength with cementitious matrices

Cited by 42 publications

References 66 publications

Effect of electrophoretic deposition of micro-quartz on the microstructural and mechanical properties of carbon fibers and their bond performance toward cement

Effect of electrophoretic deposition of micro-quartz on the microstructural and mechanical properties of carbon fibers and their bond performance toward cement

Enhanced Mechanical, Thermal and Antimicrobial Properties of Additively Manufactured Polylactic Acid with Optimized Nano Silica Content

A Review on Synthesis, Properties, and Applications of Polylactic Acid/Silica Composites

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