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Issue 73, 2018
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Facile synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites by solution mixing method

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Abstract

In this article a facile and green procedure for the synthesis of novel calcium silicate hydrated-nylon 6/66 nanocomposites is proposed. Calcium silicate hydrate (CSH) was synthesized by a hydrolysis technique assisted by ultrasound and using sodium dodecyl sulphate (SDS) as surfactant. CSH-nylon 6/66 nanocomposites were obtained by a solution mixing method at CSH loadings of 2.5, 25, 50 and 75 weight percent (samples CA, CD, CB and CC, respectively). The synthesis of CSH was confirmed by DRX and ATR-FTIR techniques; the CSH sample presents as mesoporous with a diameter between 3.34 nm and 52.68 nm and an average size of 27.07 nm; the specific surface area of the CSH sample was 343.99 m2 g−1. The formation of the CSH-nylon 6/66 nanocomposites was confirmed by ATR-FTIR, SEM, XRD, TGA, DSC and XPS techniques. The crystallization and melting temperatures (Tm and Tc, respectively) of CSH-nylon 6/66 nanocomposites occur at a slightly lower temperatures than those of neat Ny 6/66. These results suggest a slight decrease of the crystallite size and crystallization rate of nylon 6/66. The fusion enthalpy (ΔHf) decreases with increase in CSH content in nylon 6/66, which can be associated to a good dispersion. The XRD peaks of the nylon 6/66 at 19.99° and 23.77° were displaced at slightly higher values of 2θ with the incorporation of CSH in the polymer forming nanocomposite materials.

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

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Article information


Submitted
26 Aug 2018
Accepted
04 Dec 2018
First published
14 Dec 2018

This article is Open Access

RSC Adv., 2018,8, 41818-41827
Article type
Paper

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

S. Estrada-Flores, A. Martínez-Luévanos, P. Bartolo-Pérez, L. A. García-Cerda, T. E. Flores-Guia and E. N. Aguilera-González, RSC Adv., 2018, 8, 41818
DOI: 10.1039/C8RA07116K

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