Effects of Titanium Dioxide Nanoparticles on the Mechanical Strength of Epoxy Hybrid Composite Materials Reinforced with Unidirectional Carbon and Glass Fibers.

Abass, Basim A.; Hunain, Mustafa Baqir; Khudair, Jaafar M. A.

doi:10.1088/1757-899x/1094/1/012159

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…The first point worth mentioning is that when the property is plotted as a function of NP, a better overlap can be seen for the two 28.4 m 2 /g curves, despite the particular processing parameters considered in each study [ 100 , 101 ], which the previous and traditional form of portraying data (in wt.%, as seen in Figure 1 ) did not show. Although the maximum on the property curves was seen before, the representation in Figure 4 clearly separates such maxima, bringing to evidence their dependence on the specific surface area.…”

Section: Particle Effects On Composite Thermomechanical Propertiesmentioning

confidence: 91%

“…The doubtful confidence on the effect of added particle content can be illustrated by referring to the two different authors ( Table 2 , [ 100 , 101 ]) that explored similar 50 nm TiO 2 particles (SSA of 28.4 m 2 /g) seeking to improve the tensile strength performance but used a different added particle content range. As seen in Figure 1 , the resulting curves do not seem to match each other, even for the common particle content.…”

Section: Particle Effects On Composite Thermomechanical Propertiesmentioning

confidence: 99%

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Using Thermomechanical Properties to Reassess Particles’ Dispersion in Nanostructured Polymers: Size vs. Content

Boaretto,

Cruz,

Vannucchi de Camargo

et al. 2023

Polymers

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Nanoparticle-filled polymers (i.e., nanocomposites) can exhibit characteristics unattainable by the unfilled polymer, making them attractive to engineer structural composites. However, the transition of particulate fillers from the micron to the nanoscale requires a comprehensive understanding of how particle downsizing influences molecular interactions and organization across multiple length scales, ranging from chemical bonding to microstructural evolution. This work outlines the advancements described in the literature that have become relevant and have shaped today’s understanding of the processing–structure–property relationships in polymer nanocomposites. The main inorganic and organic particles that have been incorporated into polymers are examined first. The commonly practiced methods for nanoparticle incorporation are then highlighted. The development in mechanical properties—such as tensile strength, storage modulus and glass transition temperature—in the selected epoxy matrix nanocomposites described in the literature was specifically reviewed and discussed. The significant effect of particle content, dispersion, size, and mean free path on thermomechanical properties, commonly expressed as a function of weight percentage (wt.%) of added particles, was found to be better explained as a function of particle crowding (number of particles and distance among them). From this work, it was possible to conclude that the dramatic effect of particle size for the same tiny amount of very small and well-dispersed particles brings evidence that particle size and the particle weight content should be downscaled together.

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Section: Particle Effects On Composite Thermomechanical Propertiesmentioning

confidence: 91%

Section: Particle Effects On Composite Thermomechanical Propertiesmentioning

confidence: 99%

Using Thermomechanical Properties to Reassess Particles’ Dispersion in Nanostructured Polymers: Size vs. Content

Boaretto,

Cruz,

Vannucchi de Camargo

et al. 2023

Polymers

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“…Papanicolaou et al [26] Noticed that adding of nano TiO2 in the epoxy matrix led to a decrease in the flexural modulus, and the flexural strength decreases with the increase of filler weight fraction. Abass et al [27] showed that the addition of 3% wt. TiO2 nanoparticles to the epoxy composite reinforced with unidirectional carbon and glass fibers enhances its mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

Influence of Zinc Oxide and Titanium Dioxide Nanoparticles on Kevlar/Epoxy Composites

Shubbar¹,

Diwan²,

Kadhim³

et al. 2023

RCMA

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This research was aimed to perform a symmetric investigation regarding the influence of two types of nanoparticles, on some mechanical and morphological behaviors of the Kevlar/epoxy nanocomposites. Composites were prepared by dispersing nanoparticles of nano ZnO and TiO2 at loading of 1, 2 and 4 wt.% of each in (Kevlar/epoxy) composite using high speed mechanical mixer followed by sonication, then injecting them inside the cavity of a two plates glass mold. After curing they were characterized by tensile tests, flexural test, creep test and SEM. The results showed that the maximum increase of mean stress (41%) and the maximum flexural strength was obtained for system containing 4 wt.% of both nano ZnO and TiO2 particles, i.e., EKZ4 and EKT4 . SEM images for processed specimens were taken to observe the analogy distribution of both nanoparticles through the fiber/epoxy system. The improvement in the mechanical properties of nanocomposite EKT2 (2% TiO2)and EKZ2 (2% ZnO) attributed by the homogeneity of the nanoparticles distribution inside the epoxy which appear in SEM images. Also, the semispherical shape of nanoparticles led to uniform distribution of the nano particles inside Epoxy-keflar resin.

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“…, with epoxy resin on tensile properties, The results showed that the tensile strength magnitude increased with increasing AC content up to 15 % wt., then it decreased at 40 % wt. Basim A. Abass et al [16] investigated the mechanical properties of a hybrid epoxy composite strengthened by TiO 2 nano powder, glass fibbers and unidirectional carbon fiber. Different weight percentages of TiO 2 nano-powder was dispersed in epoxy using sonication.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies of fatigue properties of carbon/glass fiber/epoxy hybrid composites enhanced with nano TiO2 powder

Hunain¹,

Abass²,

Mossa³

2021

Diagnostyka

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The present work deals with the fatigue behavior of hybrid nanocomposites consisting epoxy strengthen by unidirectional carbon fibres, and/or woven roving glass fiber and TiO 2 nanofillers. For this purpose, nanocomposite material was manufactured by mixing TiO 2 nanoparticles with the epoxy using an ultrasonic mixer to insure complete dispersion of such particles in the base material. Different particle concentrations (1, 3, and 5) % wt. of TiO 2 nanoparticles have been added to the epoxy. Different types of hybrid nano composite materials were manufactured by adding three layers of carbon fibers and/or woven roving glass fiber to the prepared epoxy nanocomposite materials with a constant weight fraction of 30%. The laminated hybrid nanocomposite materials were then prepared using hand lay-up technique using a vacuum device. For experimental purposes tensile and fatigue test specimens have been manufactured according to ASTM-D3039 and ASTM D 3479/D 3479M-96, respectively, while ANSYS19 program was used to analyze the fatigue behavior of such materials numerically. Tensile tests were carried out at room temperature while fatigue tests has been carried out at constant stress ratio (R=-1). Scanning electron microscope (SEM) was used to identify the underlying mechanisms for fatigue failure and the progressive of damage growth. For each test, three specimens were tested and the average magnitude for each property was taken. The results obtained indicated that the hybrid nanocomposite (EP+C/C/C+3% TiO 2 ) has the highest fatigue limit and tensile strength in comparison with the other tested material, while the SEM results showed that the composite failed by a brittle way. It has been also generally observed that the addition of (TiO 2 ) nanoparticles has a positive effect on the fatigue behaviour of the such materials.

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Effects of Titanium Dioxide Nanoparticles on the Mechanical Strength of Epoxy Hybrid Composite Materials Reinforced with Unidirectional Carbon and Glass Fibers.

Cited by 10 publications

References 6 publications

Using Thermomechanical Properties to Reassess Particles’ Dispersion in Nanostructured Polymers: Size vs. Content

Using Thermomechanical Properties to Reassess Particles’ Dispersion in Nanostructured Polymers: Size vs. Content

Influence of Zinc Oxide and Titanium Dioxide Nanoparticles on Kevlar/Epoxy Composites

Experimental and numerical studies of fatigue properties of carbon/glass fiber/epoxy hybrid composites enhanced with nano TiO2 powder

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