Facile preparation of superhydrophobic and high oleophobic polymer composite coatings with self-cleaning, heat-resistance and wear-resistance

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• 作者：Huaiyuan Wang ; Zhanjian Liu ; Yanji Zhu ; Yang Meng ; Huan Wang…
• 刊名：Journal of Polymer Research
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：23
• 期：7
• 全文大小：1,913 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  
• 出版者：Springer Netherlands
• ISSN：1572-8935
• 卷排序：23

文摘

Superhydrophobic and high oleophobic PPS-matrix composite coatings with excellent self-cleaning, bending/heat/wear-resistance have been successfully prepared by a simple spray method through designing hierarchical structures and modifying with low surface energy groups in this work. The test results showed that the polyphenylene sulfide (PPS)/ 43 wt.% fluorinated ethylene propylene (FEP)/ polyetheretherketone (PEEK)/ 1 wt.% polydimethylsiloxane (PDMS) composite coatings exhibited superhydrophobic and high oleophobic simultaneously, with the highest contact angles of water, glycerine, ethylene glycol, crude oil and oil-water mixture up to 173 ± 1.5°, 156 ± 1.3°, 153 ± 1.3°, 151 ± 1.3° and 155 ± 1.3°, respectively. The wear life of the coating was recorded to be the longest reaching about 30 h without any surface damage until the wear test is terminated, which was 10 times of the PPS/PEEK coating. The intrinsic brittleness of PPS/PEEK coating can be avoided by the addition of FEP. Moreover, the coating can also keep superhydrophobic after immersing in strong acid and base solutions for 15 days. Under the condition of 200 °C for 1 h, the weight losses of the coatings were less than 3 % of the coating, showing outstanding heat-resistance. Under the condition of dirty, the coating also demonstrated the excellent self-cleaning effect, protecting substrates from pollution in practical applications. It is believed that our research provides a new approach to extending the life span of superhydrophobic coatings for petroleum pipeline.KeywordsSuperhydrophobic coatingMicro/nano structureHeat-resistanceWear-resistancePolyphenylene sulfide (PPS)Fluorinated ethylene propylene (FEP)