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Surface Engineering Volume 37, 2021 - Issue 10: Special Issue: Superhydrophobicity
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Research Article

Fluororubber superhydrophobic coating: preparation, characterisation, and EMI shielding performance

Wen Yan Zhoua Key Laboratory of Rubber–Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber–Plastics, Qingdao University of Science and Technology, Qingdao, People’s Republic of China;b College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, People’s Republic of ChinaView further author information
,
Ajit Dattatray Phulea Key Laboratory of Rubber–Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber–Plastics, Qingdao University of Science and Technology, Qingdao, People’s Republic of ChinaView further author information
,
Le Yuan Maa Key Laboratory of Rubber–Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber–Plastics, Qingdao University of Science and Technology, Qingdao, People’s Republic of ChinaView further author information
,
Ti Kun Shanb College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, People’s Republic of ChinaView further author information
,
Jianzhang Guob College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, People’s Republic of ChinaView further author information
&
Zhen Xiu Zhanga Key Laboratory of Rubber–Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber–Plastics, Qingdao University of Science and Technology, Qingdao, People’s Republic of China;c State Key Laboratory of fluorine-containing functional membrane materials, Zibo, People’s Republic of ChinaCorrespondence[email protected]
View further author information
Pages 1308-1319 | Received 01 Jan 2021, Accepted 09 Jun 2021, Published online: 22 Jun 2021
 
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ABSTRACT

Herein, we report the preparation and characterisation of fluororubber coated superhydrophobic Poly (ethylene tetrapthalate) (PET) fabric and polyurethane (PU) sponge. The coating surface structure over PET fabric is more stable and hydrophobic (water contact angle (CA) ≥ 153°) with mass ratio 5:1 of fluororubber/carbon nanotubes (CNTs). Fluororubber/CNT coated PET fabric has good wear resistance and hydrophobicity with repeated friction. PU sponge coated with the ratio 8:4 of fluororubber/carbon black (CB) is the best ratio showing water CA ≥ 157°. Fluororubber/CB coated PU sponge has good oil-water separation and repeated oil absorption ability. Its absorption ability to various solvents and oils can reach 20–50 times its own weight. The EMI SE of fluororubber coating in 8.2–12.4 MHz range has improved with the increased CNTs content. The highestEMI SE valuee, i.e. 52.30 db achieved at 2.0 wt% CNT content. Developed fluororubber superhydrophobic coating material has good potential in the EMI shielding application.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by Natural Science Foundation of Shandong Province-Joint Fund of Fluorosilicone material [Grant Number ZR2020LFG006].

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