Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates

The surface modification of recycled plastic film-based aggregates was investigated to improve the compatibility between the aggregates and a cement paste. Surface modification was performed using ultraviolet–ozone treatment (UV-O<sub>3</sub>), a silane coupling agent, O<sub>2</...

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Autores principales:	Jea Uk Lee, Jin-Yong Hong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	plastic film waste recycling concrete aggregates surface modification hydrophilicity Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/9dd816ad6450426ea45e3d38d629f1ee
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spelling	oai:doaj.org-article:9dd816ad6450426ea45e3d38d629f1ee2021-11-25T18:48:44ZComparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates10.3390/polym132239562073-4360https://doaj.org/article/9dd816ad6450426ea45e3d38d629f1ee2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3956https://doaj.org/toc/2073-4360The surface modification of recycled plastic film-based aggregates was investigated to improve the compatibility between the aggregates and a cement paste. Surface modification was performed using ultraviolet–ozone treatment (UV-O<sub>3</sub>), a silane coupling agent, O<sub>2</sub> atmospheric pressure plasma, and acrylic binder coating methods. The surface properties of the modified aggregates were analyzed using a contact angle measuring instrument. The results revealed that for all surface modification methods, the contact angle decreased with an increase in the treatment time. According to the comparative evaluation results of the changes in the surface characteristics of the aggregates through various surface modification methods, the contact angle reduction rates were 58.9%, 51.4%, 25.5%, and 24.5% for the O<sub>2</sub> atmospheric pressure plasma, the acrylic binder coating, the silane coupling agent, and the UV-O<sub>3</sub> method, respectively. After 48 h, the contact angle had increased by 110.9%, 29.9%, 16.4%, and 5.9% for the O<sub>2</sub> atmospheric pressure plasma, UV-O<sub>3</sub>, the silane coupling agent, and the acrylic binder coating, respectively. Namely, the surface modification using the acrylic binder coating method was found to be the most effective method in terms of the wettability increase effect and the long-term storage stability.Jea Uk LeeJin-Yong HongMDPI AGarticleplastic film wasterecyclingconcrete aggregatessurface modificationhydrophilicityOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3956, p 3956 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	plastic film waste recycling concrete aggregates surface modification hydrophilicity Organic chemistry QD241-441
spellingShingle	plastic film waste recycling concrete aggregates surface modification hydrophilicity Organic chemistry QD241-441 Jea Uk Lee Jin-Yong Hong Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
description	The surface modification of recycled plastic film-based aggregates was investigated to improve the compatibility between the aggregates and a cement paste. Surface modification was performed using ultraviolet–ozone treatment (UV-O<sub>3</sub>), a silane coupling agent, O<sub>2</sub> atmospheric pressure plasma, and acrylic binder coating methods. The surface properties of the modified aggregates were analyzed using a contact angle measuring instrument. The results revealed that for all surface modification methods, the contact angle decreased with an increase in the treatment time. According to the comparative evaluation results of the changes in the surface characteristics of the aggregates through various surface modification methods, the contact angle reduction rates were 58.9%, 51.4%, 25.5%, and 24.5% for the O<sub>2</sub> atmospheric pressure plasma, the acrylic binder coating, the silane coupling agent, and the UV-O<sub>3</sub> method, respectively. After 48 h, the contact angle had increased by 110.9%, 29.9%, 16.4%, and 5.9% for the O<sub>2</sub> atmospheric pressure plasma, UV-O<sub>3</sub>, the silane coupling agent, and the acrylic binder coating, respectively. Namely, the surface modification using the acrylic binder coating method was found to be the most effective method in terms of the wettability increase effect and the long-term storage stability.
format	article
author	Jea Uk Lee Jin-Yong Hong
author_facet	Jea Uk Lee Jin-Yong Hong
author_sort	Jea Uk Lee
title	Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
title_short	Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
title_full	Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
title_fullStr	Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
title_full_unstemmed	Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates
title_sort	comparison of surface modification methods for improving the compatibility of recycled plastic film-based aggregates
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9dd816ad6450426ea45e3d38d629f1ee
work_keys_str_mv	AT jeauklee comparisonofsurfacemodificationmethodsforimprovingthecompatibilityofrecycledplasticfilmbasedaggregates AT jinyonghong comparisonofsurfacemodificationmethodsforimprovingthecompatibilityofrecycledplasticfilmbasedaggregates
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Comparison of Surface Modification Methods for Improving the Compatibility of Recycled Plastic Film-Based Aggregates

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