Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution
The PVDF/PVC superhydrophobic composite membrane was prepared by non-solvent induced phase separation method. When the concentration of PVDF/PVC(= 85/15) is 4%, DMF can be used as a solvent to prepare PVDF/PVC superhydrophobic composite membrane by using the simple and applicable NIPS method. Throug...
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IOP Publishing
2020-01-01
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Series: | Materials Research Express |
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Online Access: | https://doi.org/10.1088/2053-1591/abd4fa |
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author | Dashuai Zhang Xiaoxue Lin Yan Zhang Xiaopeng Zhang Chen Li Yang Lin Tianyi Sun Linhua Zhu Qiang Lin Zaifeng Shi |
author_facet | Dashuai Zhang Xiaoxue Lin Yan Zhang Xiaopeng Zhang Chen Li Yang Lin Tianyi Sun Linhua Zhu Qiang Lin Zaifeng Shi |
author_sort | Dashuai Zhang |
collection | DOAJ |
description | The PVDF/PVC superhydrophobic composite membrane was prepared by non-solvent induced phase separation method. When the concentration of PVDF/PVC(= 85/15) is 4%, DMF can be used as a solvent to prepare PVDF/PVC superhydrophobic composite membrane by using the simple and applicable NIPS method. Through static contact angle and rolling angle, it was found that the maximum contact angle of PVDF/PVC composite membrane with low concentration can reach 152°, rolling angle is 3 degrees, and the surface potential energy is also relatively low about 8°. It was found by DSC that the crystallinity of PVDF/PVC composite membrane with low concentration was higher, SEM shows that the surface of 4% PVDF/PVC composite membrane has nano scale protrusion, and AMF finds that the surface of 4% PVDF/PVC composite membrane was high Surface roughness. When the surface roughness was high, the surface hydrophobicity is improved, the wetting problem was alleviated, the self-cleaning ability of the membrane is improved, and the membrane pollution is reduced. It was found that the 4% PVDF/PVC composite membrane prepared by low concentration method has a long-lasting self-cleaning performance and can be used as an organic coating in the field of self-cleaning. |
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last_indexed | 2024-03-12T15:41:46Z |
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spelling | doaj.art-0710777411f940eb97e92b89c93a81b92023-08-09T15:56:06ZengIOP PublishingMaterials Research Express2053-15912020-01-018101530310.1088/2053-1591/abd4faPreparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solutionDashuai Zhang0https://orcid.org/0000-0003-0618-1685Xiaoxue Lin1Yan Zhang2Xiaopeng Zhang3Chen Li4Yang Lin5Tianyi Sun6Linhua Zhu7Qiang Lin8Zaifeng Shi9Key Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaKey Laboratory of Water Pollution Treatment and Resource Reuse, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of China; College of Chemistry and Chemical Engineering, Hainan Normal University , Haikou, Hainan 571158, People’s Republic of ChinaThe PVDF/PVC superhydrophobic composite membrane was prepared by non-solvent induced phase separation method. When the concentration of PVDF/PVC(= 85/15) is 4%, DMF can be used as a solvent to prepare PVDF/PVC superhydrophobic composite membrane by using the simple and applicable NIPS method. Through static contact angle and rolling angle, it was found that the maximum contact angle of PVDF/PVC composite membrane with low concentration can reach 152°, rolling angle is 3 degrees, and the surface potential energy is also relatively low about 8°. It was found by DSC that the crystallinity of PVDF/PVC composite membrane with low concentration was higher, SEM shows that the surface of 4% PVDF/PVC composite membrane has nano scale protrusion, and AMF finds that the surface of 4% PVDF/PVC composite membrane was high Surface roughness. When the surface roughness was high, the surface hydrophobicity is improved, the wetting problem was alleviated, the self-cleaning ability of the membrane is improved, and the membrane pollution is reduced. It was found that the 4% PVDF/PVC composite membrane prepared by low concentration method has a long-lasting self-cleaning performance and can be used as an organic coating in the field of self-cleaning.https://doi.org/10.1088/2053-1591/abd4fapolyvinylidene fluoride (PVDF)poly(vinyl chloride) (PVC)superhydrophobicself-cleaning |
spellingShingle | Dashuai Zhang Xiaoxue Lin Yan Zhang Xiaopeng Zhang Chen Li Yang Lin Tianyi Sun Linhua Zhu Qiang Lin Zaifeng Shi Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution Materials Research Express polyvinylidene fluoride (PVDF) poly(vinyl chloride) (PVC) superhydrophobic self-cleaning |
title | Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution |
title_full | Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution |
title_fullStr | Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution |
title_full_unstemmed | Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution |
title_short | Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution |
title_sort | preparation characterization and optimization of superhydrophobic pvdf pvc composite membrane based on concentration change of casting solution |
topic | polyvinylidene fluoride (PVDF) poly(vinyl chloride) (PVC) superhydrophobic self-cleaning |
url | https://doi.org/10.1088/2053-1591/abd4fa |
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