Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments

Film-forming resins, as carriers of antifouling coatings, play an essential role in the functional performance of coatings. With the gradual promotion of coatings in the field of marine antifouling, the preparation of film-forming resins containing hydrophilic chain segments is urgently needed to gi...

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Autores principales:	Gang Lu, Changgeng Shuai, Yinsong Liu, Xue Yang, Xiaoyang Hu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	film-forming resin antifouling coating hydrophilicity polyurethane (PU) epoxy resin (EP) grafted blend Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/eb765e92d88a4a9f8a83795f59d15a02
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id	oai:doaj.org-article:eb765e92d88a4a9f8a83795f59d15a02
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spelling	oai:doaj.org-article:eb765e92d88a4a9f8a83795f59d15a022021-11-25T17:16:18ZDesign and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments10.3390/coatings111113452079-6412https://doaj.org/article/eb765e92d88a4a9f8a83795f59d15a022021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1345https://doaj.org/toc/2079-6412Film-forming resins, as carriers of antifouling coatings, play an essential role in the functional performance of coatings. With the gradual promotion of coatings in the field of marine antifouling, the preparation of film-forming resins containing hydrophilic chain segments is urgently needed to give full play to the functional and time-sensitive performance of antifouling coatings. In this paper, the single-ended isocyanate group (NCO) polyurethane (PU) prepolymer with hydrophilic chain segments was prepared and grafted onto an epoxy resin (EP) molecular chain to obtain the PU/EP grafted blend. Successful preparation of the PU/EP grafted blends was confirmed by infrared spectrum analysis. Simultaneously, the grafted blend was cured, and its hydrophilicity and mechanical properties were also tested. The results demonstrate that the grafted method can effectively improve the hydrophilicity of the film-forming resin while maintaining its mechanical properties. It can be concluded from the hydrophilic and mechanical properties of the materials that the comprehensive properties of PU/EP grafted blends are the best when the PU content is between 40% and 50%. The hanging plate test showed that the antifouling effect of the antifouling coating prepared by hydrophilic modified PU/EP film-forming resin was better than that of the traditional antifouling coating under the experimental conditions.Gang LuChanggeng ShuaiYinsong LiuXue YangXiaoyang HuMDPI AGarticlefilm-forming resinantifouling coatinghydrophilicitypolyurethane (PU)epoxy resin (EP)grafted blendEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1345, p 1345 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	film-forming resin antifouling coating hydrophilicity polyurethane (PU) epoxy resin (EP) grafted blend Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	film-forming resin antifouling coating hydrophilicity polyurethane (PU) epoxy resin (EP) grafted blend Engineering (General). Civil engineering (General) TA1-2040 Gang Lu Changgeng Shuai Yinsong Liu Xue Yang Xiaoyang Hu Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
description	Film-forming resins, as carriers of antifouling coatings, play an essential role in the functional performance of coatings. With the gradual promotion of coatings in the field of marine antifouling, the preparation of film-forming resins containing hydrophilic chain segments is urgently needed to give full play to the functional and time-sensitive performance of antifouling coatings. In this paper, the single-ended isocyanate group (NCO) polyurethane (PU) prepolymer with hydrophilic chain segments was prepared and grafted onto an epoxy resin (EP) molecular chain to obtain the PU/EP grafted blend. Successful preparation of the PU/EP grafted blends was confirmed by infrared spectrum analysis. Simultaneously, the grafted blend was cured, and its hydrophilicity and mechanical properties were also tested. The results demonstrate that the grafted method can effectively improve the hydrophilicity of the film-forming resin while maintaining its mechanical properties. It can be concluded from the hydrophilic and mechanical properties of the materials that the comprehensive properties of PU/EP grafted blends are the best when the PU content is between 40% and 50%. The hanging plate test showed that the antifouling effect of the antifouling coating prepared by hydrophilic modified PU/EP film-forming resin was better than that of the traditional antifouling coating under the experimental conditions.
format	article
author	Gang Lu Changgeng Shuai Yinsong Liu Xue Yang Xiaoyang Hu
author_facet	Gang Lu Changgeng Shuai Yinsong Liu Xue Yang Xiaoyang Hu
author_sort	Gang Lu
title	Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
title_short	Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
title_full	Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
title_fullStr	Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
title_full_unstemmed	Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments
title_sort	design and preparation of pu/ep blend resin grafted by hydrophilic molecular segments
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/eb765e92d88a4a9f8a83795f59d15a02
work_keys_str_mv	AT ganglu designandpreparationofpuepblendresingraftedbyhydrophilicmolecularsegments AT changgengshuai designandpreparationofpuepblendresingraftedbyhydrophilicmolecularsegments AT yinsongliu designandpreparationofpuepblendresingraftedbyhydrophilicmolecularsegments AT xueyang designandpreparationofpuepblendresingraftedbyhydrophilicmolecularsegments AT xiaoyanghu designandpreparationofpuepblendresingraftedbyhydrophilicmolecularsegments
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Design and Preparation of PU/EP Blend Resin Grafted by Hydrophilic Molecular Segments

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