Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin
Hydrophobic materials have promising applications. However, fluorine present in hydrophobic materials can lead to health risks and environmental pollution. This study investigated an environmentally friendly route to produce fluorine-free hydrophobic coatings with good wear resistance. Wear-resistan...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2023-01-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22072 |
| _version_ | 1797794775715282944 |
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| author | Wenlong Liu Xingwen Zhang Hongyu Ren Xingcheng Hu Xinyu Yang Hui Liu |
| author_facet | Wenlong Liu Xingwen Zhang Hongyu Ren Xingcheng Hu Xinyu Yang Hui Liu |
| author_sort | Wenlong Liu |
| collection | DOAJ |
| description | Hydrophobic materials have promising applications. However, fluorine present in hydrophobic materials can lead to health risks and environmental pollution. This study investigated an environmentally friendly route to produce fluorine-free hydrophobic coatings with good wear resistance. Wear-resistant hydrophobic coatings were prepared by introducing different ratios of spirocyclic alkoxysilane into the epoxy resin. Characterization by Fourier transform infrared spectroscopy, water contact angle measurement, scanning electron microscope, tape adhesion test, and abrasion testing showed that the multi-methyl group and double-ring rigid skeleton structure of spirocyclic alkoxysilane can remarkably improve the hydrophobic performance and wear resistance of the epoxy resin. The modified hydrophobic coatings can withstand more than 1600 instances of controlled rubbing. Furthermore, the maximum water contact angle can reach 110° after substantial abrasion. The novelty of the work is that the authors successfully synthesized spirocyclic alkoxysilane for the first-time using corn straw ash. The prepared spirocyclic alkoxysilane was then used as a modifier to prepare hydrophobic epoxy resin coating. This approach can broaden the utilization of corn straw ash. Therefore, this method can achieve a green and low-cost preparation of wear-resistant hydrophobic coatings without the introduction of fluorine. |
| first_indexed | 2024-03-13T03:07:58Z |
| format | Article |
| id | doaj.art-7b747c75c57147838a3b1207ee5f6b2b |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-03-13T03:07:58Z |
| publishDate | 2023-01-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-7b747c75c57147838a3b1207ee5f6b2b2023-06-26T18:47:23ZengNorth Carolina State UniversityBioResources1930-21262023-01-011812011202374Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy ResinWenlong Liu0Xingwen Zhang1Hongyu Ren2Xingcheng Hu3Xinyu Yang4Hui Liu5School of Energy Science and Engineering, Harbin Institute of TechnologySchool of Chemistry and Chemical Engineering, Harbin Institute of TechnologyCollege of Resources and Environment, Northeast Agriculture UniversitySchool of Chemistry and Chemical Engineering, Harbin Institute of TechnologySchool of Chemistry and Chemical Engineering, Harbin Institute of TechnologySchool of Energy Science and Engineering, Harbin Institute of TechnologyHydrophobic materials have promising applications. However, fluorine present in hydrophobic materials can lead to health risks and environmental pollution. This study investigated an environmentally friendly route to produce fluorine-free hydrophobic coatings with good wear resistance. Wear-resistant hydrophobic coatings were prepared by introducing different ratios of spirocyclic alkoxysilane into the epoxy resin. Characterization by Fourier transform infrared spectroscopy, water contact angle measurement, scanning electron microscope, tape adhesion test, and abrasion testing showed that the multi-methyl group and double-ring rigid skeleton structure of spirocyclic alkoxysilane can remarkably improve the hydrophobic performance and wear resistance of the epoxy resin. The modified hydrophobic coatings can withstand more than 1600 instances of controlled rubbing. Furthermore, the maximum water contact angle can reach 110° after substantial abrasion. The novelty of the work is that the authors successfully synthesized spirocyclic alkoxysilane for the first-time using corn straw ash. The prepared spirocyclic alkoxysilane was then used as a modifier to prepare hydrophobic epoxy resin coating. This approach can broaden the utilization of corn straw ash. Therefore, this method can achieve a green and low-cost preparation of wear-resistant hydrophobic coatings without the introduction of fluorine.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22072plant biomasscorn straw ashhydrophobic coatingbiosilicafluorine-free |
| spellingShingle | Wenlong Liu Xingwen Zhang Hongyu Ren Xingcheng Hu Xinyu Yang Hui Liu Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin BioResources plant biomass corn straw ash hydrophobic coating biosilica fluorine-free |
| title | Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin |
| title_full | Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin |
| title_fullStr | Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin |
| title_full_unstemmed | Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin |
| title_short | Fluorine-free and Durable Hydrophobic Coating Made with Corn Straw-derived Silane Modified Epoxy Resin |
| title_sort | fluorine free and durable hydrophobic coating made with corn straw derived silane modified epoxy resin |
| topic | plant biomass corn straw ash hydrophobic coating biosilica fluorine-free |
| url | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/22072 |
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