Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution

Dashuai Zhang; Xiaoxue Lin; Yan Zhang; Xiaopeng Zhang; Chen Li; Yang Lin; Tianyi Sun; Linhua Zhu; Qiang Lin; Zaifeng Shi

doi:10.1088/2053-1591/abd4fa

Materials Research Express (Jan 2020)

Preparation, characterization and optimization of superhydrophobic PVDF-PVC composite membrane based on concentration change of casting solution

Dashuai Zhang,
Xiaoxue Lin,
Yan Zhang,
Xiaopeng Zhang,
Chen Li,
Yang Lin,
Tianyi Sun,
Linhua Zhu,
Qiang Lin,
Zaifeng Shi

Affiliations

Dashuai Zhang: ORCiD; Key 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 China
Xiaoxue Lin: Key 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 China
Yan Zhang: Key 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 China
Xiaopeng Zhang: Key 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 China
Chen Li: Key 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 China
Yang Lin: Key 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 China
Tianyi Sun: Key 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 China
Linhua Zhu: Key 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 China
Qiang Lin: Key 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 China
Zaifeng Shi: Key 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 China

DOI: https://doi.org/10.1088/2053-1591/abd4fa
Journal volume & issue: Vol. 8, no. 1
p. 015303

Abstract

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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.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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