Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells

[Image: see text] Almond shell-modified urea–formaldehyde resins (AUF) were prepared in this study. The optimal addition amount of almond shells was selected by formaldehyde emission and wet shear strength. The activation energy (E(a)) values at different conversion rates and the reaction kinetics w...

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Autores principales: Chen, Kexin, Cheng, Xue, Chen, Yuzhu, Qi, Jinqiu, Xie, Jiulong, Huang, Xingyan, Jiang, Yongze, Xiao, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8495856/
https://www.ncbi.nlm.nih.gov/pubmed/34632226
http://dx.doi.org/10.1021/acsomega.1c03896
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author Chen, Kexin
Cheng, Xue
Chen, Yuzhu
Qi, Jinqiu
Xie, Jiulong
Huang, Xingyan
Jiang, Yongze
Xiao, Hui
author_facet Chen, Kexin
Cheng, Xue
Chen, Yuzhu
Qi, Jinqiu
Xie, Jiulong
Huang, Xingyan
Jiang, Yongze
Xiao, Hui
author_sort Chen, Kexin
collection PubMed
description [Image: see text] Almond shell-modified urea–formaldehyde resins (AUF) were prepared in this study. The optimal addition amount of almond shells was selected by formaldehyde emission and wet shear strength. The activation energy (E(a)) values at different conversion rates and the reaction kinetics were estimated based on the Flynn–Wall–Ozawa method. The results indicated that almond shells can significantly reduce the formaldehyde emission and increase wet shear strength and thermal stability of the urea–formaldehyde resin adhesive. The optimal addition of almond shells is 3 wt %.
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spelling pubmed-84958562021-10-08 Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells Chen, Kexin Cheng, Xue Chen, Yuzhu Qi, Jinqiu Xie, Jiulong Huang, Xingyan Jiang, Yongze Xiao, Hui ACS Omega [Image: see text] Almond shell-modified urea–formaldehyde resins (AUF) were prepared in this study. The optimal addition amount of almond shells was selected by formaldehyde emission and wet shear strength. The activation energy (E(a)) values at different conversion rates and the reaction kinetics were estimated based on the Flynn–Wall–Ozawa method. The results indicated that almond shells can significantly reduce the formaldehyde emission and increase wet shear strength and thermal stability of the urea–formaldehyde resin adhesive. The optimal addition of almond shells is 3 wt %. American Chemical Society 2021-09-20 /pmc/articles/PMC8495856/ /pubmed/34632226 http://dx.doi.org/10.1021/acsomega.1c03896 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Chen, Kexin
Cheng, Xue
Chen, Yuzhu
Qi, Jinqiu
Xie, Jiulong
Huang, Xingyan
Jiang, Yongze
Xiao, Hui
Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title_full Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title_fullStr Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title_full_unstemmed Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title_short Thermal Degradation Kinetics of Urea–Formaldehyde Resins Modified by Almond Shells
title_sort thermal degradation kinetics of urea–formaldehyde resins modified by almond shells
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8495856/
https://www.ncbi.nlm.nih.gov/pubmed/34632226
http://dx.doi.org/10.1021/acsomega.1c03896
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