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1.
Int J Mol Sci ; 23(15)2022 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-35955967

RESUMEN

The authors wish to make the following corrections to the original publication [...].

2.
Int J Mol Sci ; 22(15)2021 07 28.
Artículo en Inglés | MEDLINE | ID: mdl-34360861

RESUMEN

In response to the demand for high-performance materials, epoxy thermosetting and its composites are widely used in various industries. However, their poor toughness, resulting from the high crosslinking density of the epoxy network, must be improved to expand their application to the manufacturing of flexible products. In this study, ductile epoxy thermosetting was produced using thiol compounds with functionalities of 2 and 3 as curing agents. The mechanical properties of the epoxy were further enhanced by incorporating fumed silica into it. To increase the filler dispersion, epoxide-terminated polydimethylsiloxane was synthesized and used as a composite component. Thanks to the polysiloxane-silica interaction, the nanosilica was uniformly dispersed in the epoxy composites, and their mechanical properties improved with increasing fumed silica content up to 5 phr (parts per hundred parts of epoxy resin). The toughness and impact strength of the composite containing 5 phr nanosilica were 5.17 (±0.13) MJ/m3 and 69.8 (±1.3) KJ/m2, respectively.


Asunto(s)
Resinas Compuestas/síntesis química , Resinas Epoxi/síntesis química , Dimetilpolisiloxanos/química , Ensayo de Materiales , Dióxido de Silicio/química , Propiedades de Superficie , Resistencia a la Tracción
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