Facile and low-cost method to fabricate a superhydrophobic aluminum alloy surface: towards optimum preparation conditions

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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تاریخ نمایه سازی: 25 بهمن 1394


Aluminum and the aluminum alloys are important and useful materials in industry with potential for enhanced applications via creating novel properties such assuperhydrophobicity and self-cleaning features. In this study, an improved facile and low-cost surface treatment approach was developed to create a superhydrophobicaluminum surface. Overall, the modified aluminum substrates exhibited a satisfactory superhydrophobicity, with a static water contact angle of about 1461 and a contact angle hysteresis of approximately 11. The effects of two key parameters including theetching time and coating temperature were investigated using simple and handy measurement techniques. The results show that a 4 min immersion time for acidtreatment of the surface and a temperature of 46 °C for the coating step would be considered optimal with respect to the contact angle and self-cleaning property. Further increasing the reaction temperature, however, leads to the cleavage of thehydrogen bonds, thus increasing the surface energy and reducing the water contact angle


Mehrdad Fallah

Faculty of Polymer Science, Iran Polymer and Petrochemical Institute,P.O. Box 16941-111, Tehran, Iran.

Ahmad Rabiee

Faculty of Polymer Science, Iran Polymer and Petrochemical Institute, P.O. Box 16941-111, Tehran, Iran.

Mohammad Ghashghaee

Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute,P.O. Box 16941-111, Tehran, Iran.

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