Efficient Antiscaling Technology Based on Superhydrophobicity Coupled Ultrasonic Technology

Abstract

To meet the urgent demand for antiscaling technology, a superhydrophobic surface coupled with ultrasonic technology is proposed to develop an environmentally friendly, energysaving, and high-efficiency antiscaling technology. Six types of superhydrophobic coatings are prepared on the metal surface by the spray adhesion method, and their antiscaling performance is carefully investigated. The result shows that the prepared superhydrophobic samples have a certain antiscaling ability, but the antiscaling rate is significantly affected by temperature, pressure, and flow state. Then, the synergism of ultrasonication and superhydrophobicity can not only reduce the adhesion and growth of CaCO 3 but also affect the morphology of CaCO 3 . It can further reduce the amount of scaling on the superhydrophobic surface coated with ECA/PTFE, PDMS/PTFE, ECA/ FEP, and PDMS/FEP. The antiscaling rate of the four superhydrophobic surfaces reaches 100% even under intermittent ultrasonic treatment. The combination of superhydrophobicity and ultrasonic technology shows excellent antiscaling performance and stability, providing a new descaling technology for industrial production.