Influence of the Organophilisation Process on Properties of the Bentonite Filler and Mechanical Properties of the Clay/Epoxy Nanocomposites

Rapacz-Kmita, Alicja; Moskała, N; Dudek, Magdalena; Gajek, Marcin; Mandecka-Kamień, L.

doi:10.1515/amm-2016-0148

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…The presence of bentonite improved the flexural strength in samples B5H20 (68.92 MPa), B5H30 (83.51 MPa), B5H35 (98.04 MPa), and B5H45 (79.55 MPa) with increases of 49.44, 63.26, 54.50, and 4.59%, respectively, with respect to their pairs H20 (46.12 MPa), H30 (51.15 MPa), H35 (63.87 MPa), and H45 (76.06 MPa) and the polymer sample P (68.05 MPa), as can be seen in Figure 8 b. Similar results were found by Rapacz-Kmita et al [ 32 ].…”

Section: Resultssupporting

confidence: 87%

Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers

et al. 2023

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The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to 45 wt% of fibers with a step of 5%. For mechanical characterization, tensile and flexural tests were performed: scanning electron microscopy and energy-dispersive X-ray spectroscopy analyses were carried out. The tensile strength of the samples containing bentonite compared to the polymer samples with the fiber addition was affected for all fiber addition percentages, except for 35% while the flexural resistance improved with the addition of bentonite in the percentages of 20, 30, 35, and 45% of fiber addition. With the addition of bentonite, the maximum values of tensile and flexural strength were both obtained for the 35% addition of fibers, with values of 34.28 MPa and 98.04 MPa, respectively. The presence of bentonite favored the rigidity of the material to traction and bending, which was reflected through an increase in the elastic modulus compared to the composite that only had fiber. The maximum values obtained were 9065 MPa in tension and 8453 MPa in flexion for the 40% and 35% of addition of fiber, respectively. Microscopy showed a good distribution of fibers in the matrix, the absence of internal porosities, and a good interaction between matrix and reinforcement.

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Section: Resultssupporting

confidence: 87%

Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers

et al. 2023

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“…Polymer-clay nanocomposites based on layered silicates (MMT) have been widely used in many branches of technology. The organoclays, due to their high aspect ratio and unique intercalation/exfoliation characteris-tics, are commonly used for improving, e.g., mechanical [1], thermal [2] and barrier properties [3]. The wide application of these fillers in plastics processing results in the fact that rheological properties of nanocomposites are also an important area of research.…”

Section: Wpływ Modyfikowanych Bentonitów Na Proces Sieciowania żYwicymentioning

confidence: 99%

Effect of modified bentonites on the crosslinking process of epoxy resin with alifphatic amine as curing agent

Oliwa

Bulanda

et al. 2019

Polimery

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In this work the influence of modified bentonites on the process of epoxy crosslinking with triethylenetetramine (TETA) was investigated. Bentonites (BS) modified with quaternary phosphonium (QPS) and ammonium (QAS) salts were used as a nanofiller in the epoxy matrix (EP) in the amounts of 1 and 3 wt %. Gel time of the compositions was investigated using rotational rheometer at 30, 45 and 60 °C and activation energies of the compositions were determined. The storage G' and loss G" moduli crossover criterion was used to determine the nanocomposites gel time variation. On the basis of the obtained results, it was found that the addition of modified aluminosilicates decreased the gel time of epoxy compositions at 30 and 45 °C, while at 60 °C it increased compared to unmodified epoxy resin. The obtained results indicate that the amount of modified aluminosilicate and the type of salt influence the reactivity of epoxy compositions. Among the tested systems, the most reactive was the composition of EP+3%BSQPS1, because the gel time at 30 °C and activation energy decreased by 1500 s and 8 J/mol, respectively, in relation to the unfilled EP resin. A more catalytic effect was observed in the case of bentonites modified with quaternary phosphonium salts, which may be associated with lower phosphorus electronegativity in relation to nitrogen and a lower viscosity of these systems.

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“…Xue et al (2013) investigated the adsorption removal of Cu(II) from aqueous solution by basic oxygen furnace slag (BOFs) which was activated by the mechanochemstry process. Rapacz-kmita et al (2016) examined the influence of the organophilisation process on the properties of resulting organobentonite fillers and their capability to improve the mechanical properties of clay/ polymer nanocomposites. Moreover, Shabani et al (2014) discussed the adsorption activity of perlite nanoparticles for removal of Cu 2+ , Fe 2+ and Mn 2+ ions at Iran Sarcheshmeh copper acid mine drainage.…”

Section: +mentioning

confidence: 99%

Optimal Conditions for Treating Acid Mine Drainage using Bentonite-Steel Slag Composites

Xiao

Bin

Bai

et al. 2017

IJGE

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Acid mine drainage is characterised by low pH and high concentrations of heavy metal ions, such as Fe . In this paper, composite particles consisting of bentonite and steel slags are used to dispose acid mine drainage. Bentonite is an mineral material which has an excellent capacity to adsorb heavy metal ions. Steel slags are alkaline, an industrial solid waste commonly used in the treatment of acid mine drainage. The main influencing factors, including adsorbent dosages, shaking rates, concentrations of heavy metal ions, temperature, adsorption time and pH value are examined using a static experiment. The results indicate that the removal efficiency of heavy metal ions improves when increasing the adsorbent dosages and the concentrations of the heavy metal ions, speeding up the shaking rates, raising temperature, extending the adsorption time and increasing pH value. With a consideration of removal efficiencies combining with treatment costs, the optimum reaction conditions for the four types of heavy metal ions are obtained, which are an adsorbent dosage of 21 mg/L, a rotational speed of 120 r/min, temperature 25℃, adsorption time 100 min and initial wastewater pH7. The highest initial concentration of Fe , Cu 2+ and Zn 2+ were adsorbed and precipitated effectively. The research results can extend the practical engineering application of the composite particles.

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Influence of the Organophilisation Process on Properties of the Bentonite Filler and Mechanical Properties of the Clay/Epoxy Nanocomposites

Cited by 7 publications

References 15 publications

Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers

Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers

Effect of modified bentonites on the crosslinking process of epoxy resin with alifphatic amine as curing agent

Optimal Conditions for Treating Acid Mine Drainage using Bentonite-Steel Slag Composites

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