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Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings
Graphene carbon nitride (g-C3N4) was successfully prepared by semi-closed pyrolysis and then incorporated into the ultraviolet (UV)-curing system to synthesize different specimens of g-C(3)N(4)-hybridized UV-curing (g-C(3)N(4)/UV) coatings. The apparent appearance and dispersity g-C(3)N(4) were char...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981393/ https://www.ncbi.nlm.nih.gov/pubmed/31906160 http://dx.doi.org/10.3390/ma13010153 |
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author | Hang, Zusheng Yu, Huili Lu, Yan Huai, Xu Luo, Lingpeng |
author_facet | Hang, Zusheng Yu, Huili Lu, Yan Huai, Xu Luo, Lingpeng |
author_sort | Hang, Zusheng |
collection | PubMed |
description | Graphene carbon nitride (g-C3N4) was successfully prepared by semi-closed pyrolysis and then incorporated into the ultraviolet (UV)-curing system to synthesize different specimens of g-C(3)N(4)-hybridized UV-curing (g-C(3)N(4)/UV) coatings. The apparent appearance and dispersity g-C(3)N(4) were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The influence of the curing speed and mechanical properties was also tested. The dispersion level of g-C(3)N(4) can be kept less than 1 μm by mechanical mixing. The pencil hardness of composite coatings could be 6H while the adhesion based on glass could be 1 level. The degree of curing of the coating could be obviously improved by the addition of g-C(3)N(4), leading to a 7 percent increase of the gel content. Additionally, the decomposition of hard segments of polyurethane acrylate could be avoided by the use of g-C(3)N(4) resulting in an increasing stability to heat. We found the gel content in an aerobic environment was lower than that in an anaerobic environment. On this basis, the function and mechanism of g-C(3)N(4) was investigated in detail and methods to eliminate the O(2) were proposed. |
format | Online Article Text |
id | pubmed-6981393 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69813932020-02-07 Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings Hang, Zusheng Yu, Huili Lu, Yan Huai, Xu Luo, Lingpeng Materials (Basel) Article Graphene carbon nitride (g-C3N4) was successfully prepared by semi-closed pyrolysis and then incorporated into the ultraviolet (UV)-curing system to synthesize different specimens of g-C(3)N(4)-hybridized UV-curing (g-C(3)N(4)/UV) coatings. The apparent appearance and dispersity g-C(3)N(4) were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The influence of the curing speed and mechanical properties was also tested. The dispersion level of g-C(3)N(4) can be kept less than 1 μm by mechanical mixing. The pencil hardness of composite coatings could be 6H while the adhesion based on glass could be 1 level. The degree of curing of the coating could be obviously improved by the addition of g-C(3)N(4), leading to a 7 percent increase of the gel content. Additionally, the decomposition of hard segments of polyurethane acrylate could be avoided by the use of g-C(3)N(4) resulting in an increasing stability to heat. We found the gel content in an aerobic environment was lower than that in an anaerobic environment. On this basis, the function and mechanism of g-C(3)N(4) was investigated in detail and methods to eliminate the O(2) were proposed. MDPI 2019-12-31 /pmc/articles/PMC6981393/ /pubmed/31906160 http://dx.doi.org/10.3390/ma13010153 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hang, Zusheng Yu, Huili Lu, Yan Huai, Xu Luo, Lingpeng Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title | Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title_full | Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title_fullStr | Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title_full_unstemmed | Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title_short | Effect of Graphene Carbon Nitride on Ultraviolet-Curing Coatings |
title_sort | effect of graphene carbon nitride on ultraviolet-curing coatings |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981393/ https://www.ncbi.nlm.nih.gov/pubmed/31906160 http://dx.doi.org/10.3390/ma13010153 |
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