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Fabrication of robust self‐cleaning superhydrophobic coating by deposition of polymer layer on candle soot surface
Journal of Applied Polymer Science ( IF 3 ) Pub Date : 2020-09-24 , DOI: 10.1002/app.49943
Rajaram S. Sutar 1 , Sanjay S. Latthe 1 , Saravanan Nagappan 2 , Chang‐Sik Ha 2 , Kishor Kumar Sadasivuni 3 , Shanhu Liu 4 , Ruimin Xing 4 , Appasaheb K. Bhosale 1
Affiliation  

A facile and inexpensive way have been developed to fabricate robust self‐cleaning superhydrophobic coating by depositing polymer layer on candle soot (CS) surface using dip coating method. The stability and robustness of the CS deposited superhydrophobic surface is much weaker due to weak interaction and nonchemical bonding with the substrate. We introduced a thin layer of polystyrene, polyethylene, polypropylene (PP), and polyvinylidene fluoride on CS surface in order to improve its mechanical properties. The fabricated surfaces with the use of respective polymers exhibited water contact angles of nearly 170, 174, 175, and 171° with sliding angles of 2, 1, 1, and 3°, respectively. Although, all the polymers used in this work exhibited excellent superhydrophobic and self‐cleaning surface property, we found that the PP deposited CS surface exhibit better stability against water jet hitting and water drop impact tests. The PP deposited CS surface almost maintained their surface properties even after 50 cycles of sandpaper abrasion and 20 cycles of adhesive tape peeling tests. The mechanical durability tests confirmed that PP is a better polymer to improve the long‐term durability of CS surface. Therefore, this simple, time saving, and inexpensive method for fabricating superhydrophobic coating can be used for potential industrial application.

中文翻译:

通过在蜡烛烟deposition表面沉积聚合物层来制造坚固的自清洁超疏水涂层

通过使用浸涂法将聚合物层沉积在蜡烛烟灰(CS)表面上,已经开发了一种简便而廉价的方法来制造坚固的自清洁超疏水涂层。由于与基材的弱相互作用和非化学键合,CS沉​​积的超疏水表面的稳定性和坚固性要弱得多。我们在CS表面上引入了一层聚苯乙烯,聚乙烯,聚丙烯(PP)和聚偏二氟乙烯薄层,以改善其机械性能。使用相应的聚合物制成的表面显示出水接触角接近170、174、175和171°,滑动角分别为2、1、1和3°。尽管这项工作中使用的所有聚合物均表现出优异的超疏水性和自清洁表面性能,我们发现,PP沉积的CS表面在抵御水击和水滴冲击试验方面表现出更好的稳定性。即使在50次砂纸磨损循环和20次胶带剥离试验之后,PP沉积的CS表面也几乎保持了其表面性能。机械耐久性测试证实,PP是改善CS表面长期耐久性的更好的聚合物。因此,这种简单,省时且便宜的制造超疏水涂层的方法可用于潜在的工业应用。机械耐久性测试证实,PP是改善CS表面长期耐久性的更好的聚合物。因此,这种简单,省时且便宜的制造超疏水涂层的方法可用于潜在的工业应用。机械耐久性测试证实,PP是改善CS表面长期耐久性的更好的聚合物。因此,这种简单,省时且便宜的制造超疏水涂层的方法可用于潜在的工业应用。
更新日期:2020-11-25
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