Facile synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites by solution mixing method

Estrada-Flores, Sofía; Bartolo‐Pérez, P.; Garcı́a-Cerda, L.A.; Flores‐Guía, Tirso E.; Aguilera-González, Elsa Nadia

doi:10.1039/c8ra07116k

Cited by 24 publications

(6 citation statements)

References 35 publications

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“…The first weight loss was found in the temperature range of 36–333 °C, which is related to water adsorbed on the surface of the materials. The second weight loss occurred in a temperature range of 340–526 °C, which is attributed to the thermal degradation of the Nylon 6 [ 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Nylon 6/Modified Carbon Black Nanocomposites for Application in Uric Acid Adsorption

Andrade-Guel¹,

Ávila‐Orta²,

Cadenas‐Pliego³

et al. 2020

Materials

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High uric acid levels cause different clinic conditions. One of them is hyperuricemia, which leads to kidney damage. A solution for eliminating uric acid in the blood is by hemodialysis, which is performed using nanocomposite membranes. In this work, Nylon 6 nanocomposites were synthesized with modified carbon black (MCB), which were considered candidate materials for hemodialysis membranes. The modification of carbon black was made with citric acid using the variable-frequency ultrasound method. The new MCB was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), and dispersion tests. Nylon 6/MCB nanocomposites were processed using the ultrasound-assisted melt-extrusion method to improve the dispersion procedure of the nanoparticles. The Nylon 6/MCB nanocomposites were characterized by FTIR, TGA, and differential scanning calorimetry (DSC). These were assessed for the absorption of toxins and hemocompatibility. MBC and nanocomposites showed excellent uric acid removal (78–82%) and hemocompatibility (1.6–1.8%). These results suggest that Nylon 6/MCB nanocomposites with low loading percentages can be used on a large scale without compatibility problems with blood.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Nylon 6/Modified Carbon Black Nanocomposites for Application in Uric Acid Adsorption

Andrade-Guel¹,

Ávila‐Orta²,

Cadenas‐Pliego³

et al. 2020

Materials

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“…112 It is worth noting that in XPS analysis, signals belonging to hydrated metal oxides appear at higher energy values than that of dehydrated metal oxides with a similar oxidation state. 113,114 The O 1s signal of the spectrum can be deconvoluted into two distinct peaks at binding energies of 530.4, and 532.8 eV, which were attributed to Ru–O (O 2− ) 115–117 and Si–O bonds, 118,119 respectively (Fig. 4c).…”

Section: Resultsmentioning

confidence: 99%

Improved catalytic performance by changing surface and textural properties of Ru supported bifunctional periodic mesoporous organosilicas in aerobic oxidation of alcohols

Pourshiani¹,

Karimi²,

Moradi³

et al. 2023

Catal. Sci. Technol.

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“…The band at 961 cm −1 is related to a coupling of the vibrations of the Si–O–Si, Si–OH, and Si(OSi) 3 O–Ca groups, and the characteristic adsorptions at 875 cm −1 are related to Si–O bending vibration (calcium silicate hydrate (CSH)) 102 , 103 . The water molecules and hydroxyl groups of the CSH-phases have a broad band in the 3100–3500 cm −1 region as well as an -OH bending mode between 1633 to 1663 cm −1 104 . The additional band can be marked in the FTIR spectra of hydrated Tricalcium silicate (C 3 S) in the range of 965, 1371, and 3640 cm −1 105 .…”

Section: Resultsmentioning

confidence: 99%

Effects of type and distribution of clay minerals on the physico-chemical and geomechanical properties of engineered porous rocks

Iranfar

Karbala

Shakiba

et al. 2023

Sci Rep

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The study of the properties of engineered rocks is of great importance to researchers in engineering sciences such as petroleum, mining, and civil engineering owing to their wide application in these fields. In the present study, a physico-chemical and geomechanical investigation was carried out on the effects of different clay minerals on porous rocks. Various chemical products formed during chemical interactions between cement, clay minerals, and water can change the pore structure and thus the rock characteristics. The results of the current study showed that increasing the clay content could remarkably reduce the porosity and permeability of the rock by an average of 86% and 6.76%, respectively. In this regard, samples containing kaolinite were further influenced due to their new pore structure. Moreover, a power relationship was found between sonic velocity and porosity, which can be used to predict rock properties. Chemical analysis indicated an amplification in quantities of chemical products, particularly calcium silicate hydrate and portlandite, due to an increase in clay content. The impacts of porosity and cementation quality as two main factors on rock strength have also been studied. The outcomes revealed that a reduction in porosity could compensate for detrimental effects of poor bond quality and consequently improved UCS by up to 30% in samples containing kaolinite, while decreasing the degree of cementation prevailed over the porosity reduction in specimens including illite and resulted in a 14% decrease in UCS. The effects of porosity and bond quality on UCS would cancel each other out in samples containing bentonite. It is worth noting that when it comes to changes in geomechanical characteristics, the dominant factor (i.e., porosity reduction or cementation quality) determines the ultimate effect of clay minerals on the properties of engineered porous rocks.

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Facile synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites by solution mixing method

Abstract: In this work it was possible to synthesize novel CSH-nylon 6/66 nanocomposites using a simple and easy methodology such as the solution mixing method and using green solvents like water, formic acid and ethanol.

Cited by 24 publications

References 35 publications

Synthesis of Nylon 6/Modified Carbon Black Nanocomposites for Application in Uric Acid Adsorption

Synthesis of Nylon 6/Modified Carbon Black Nanocomposites for Application in Uric Acid Adsorption

Improved catalytic performance by changing surface and textural properties of Ru supported bifunctional periodic mesoporous organosilicas in aerobic oxidation of alcohols

Effects of type and distribution of clay minerals on the physico-chemical and geomechanical properties of engineered porous rocks

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