Cargando…

Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin

In this publication, novel bio-based composites made of epoxidized natural rubber with 50 mol% of epoxidation (ENR-50) are presented. The obtained materials, partially cured with a totally environmentally friendly crosslinking system consisting of natural ingredients, including quercetin and silica,...

Descripción completa

Detalles Bibliográficos
Autores principales: Olejnik, Olga, Masek, Anna, Szynkowska-Jóźwik, Małgorzata Iwona
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306683/
https://www.ncbi.nlm.nih.gov/pubmed/34300947
http://dx.doi.org/10.3390/ma14144028
_version_ 1783727869737828352
author Olejnik, Olga
Masek, Anna
Szynkowska-Jóźwik, Małgorzata Iwona
author_facet Olejnik, Olga
Masek, Anna
Szynkowska-Jóźwik, Małgorzata Iwona
author_sort Olejnik, Olga
collection PubMed
description In this publication, novel bio-based composites made of epoxidized natural rubber with 50 mol% of epoxidation (ENR-50) are presented. The obtained materials, partially cured with a totally environmentally friendly crosslinking system consisting of natural ingredients, including quercetin and silica, exhibit a self-healing ability resulting from the self-adhesion of ENR-50 and reversible physical forces between the curing agent and the matrix. The impact of natural components on the crosslinking effect in uncured ENR-50 matrix was analyzed based on rheometric measurements, mechanical tests and crosslinking density. The partially crosslinked samples were next cut into two separate pieces, which were instantly contacted together under a small manual press, left at room temperature for a few days for the healing process to occur and finally retested. The healing efficiency was estimated by measuring mechanical properties before and after the healing process and was also confirmed by photos taken using optical and scanning electron microscope (SEM). According to the results, a combination of silica and quercetin is a totally safe, natural and effective crosslinking system dedicated to epoxidized natural rubber. The novel composites containing ingredients safe for human beings exhibit promising self-healing properties with a healing efficiency of up to 45% without any external stimuli and stand a chance of becoming innovative biomedical materials.
format Online
Article
Text
id pubmed-8306683
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-83066832021-07-25 Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin Olejnik, Olga Masek, Anna Szynkowska-Jóźwik, Małgorzata Iwona Materials (Basel) Article In this publication, novel bio-based composites made of epoxidized natural rubber with 50 mol% of epoxidation (ENR-50) are presented. The obtained materials, partially cured with a totally environmentally friendly crosslinking system consisting of natural ingredients, including quercetin and silica, exhibit a self-healing ability resulting from the self-adhesion of ENR-50 and reversible physical forces between the curing agent and the matrix. The impact of natural components on the crosslinking effect in uncured ENR-50 matrix was analyzed based on rheometric measurements, mechanical tests and crosslinking density. The partially crosslinked samples were next cut into two separate pieces, which were instantly contacted together under a small manual press, left at room temperature for a few days for the healing process to occur and finally retested. The healing efficiency was estimated by measuring mechanical properties before and after the healing process and was also confirmed by photos taken using optical and scanning electron microscope (SEM). According to the results, a combination of silica and quercetin is a totally safe, natural and effective crosslinking system dedicated to epoxidized natural rubber. The novel composites containing ingredients safe for human beings exhibit promising self-healing properties with a healing efficiency of up to 45% without any external stimuli and stand a chance of becoming innovative biomedical materials. MDPI 2021-07-19 /pmc/articles/PMC8306683/ /pubmed/34300947 http://dx.doi.org/10.3390/ma14144028 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Olejnik, Olga
Masek, Anna
Szynkowska-Jóźwik, Małgorzata Iwona
Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title_full Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title_fullStr Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title_full_unstemmed Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title_short Self-Healable Biocomposites Crosslinked with a Combination of Silica and Quercetin
title_sort self-healable biocomposites crosslinked with a combination of silica and quercetin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306683/
https://www.ncbi.nlm.nih.gov/pubmed/34300947
http://dx.doi.org/10.3390/ma14144028
work_keys_str_mv AT olejnikolga selfhealablebiocompositescrosslinkedwithacombinationofsilicaandquercetin
AT masekanna selfhealablebiocompositescrosslinkedwithacombinationofsilicaandquercetin
AT szynkowskajozwikmałgorzataiwona selfhealablebiocompositescrosslinkedwithacombinationofsilicaandquercetin