Researchers at the University of Curtin have developed a new technique to make glass water repellent, a feature that could improve vehicle safety, reduce buildings cleaning costs and improve filtration systems.
The research, published in the magazine Advanced functional materialsIt shows how an innovative and non -toxic process that uses ultrasonic sound waves can alter the glass surface, which makes it hydrophobic (water resistant) or electrically loaded.
The principal researcher, the associated professor Nadim Darwish, a future future of Curtin at the School of Molecular and Life Sciences of Curtin (MLS), explained that the process uses ultrasound to trigger a chemical reaction that permanently alters the surface of the glass.
“Sound waves create microscopic bubbles in a saline solution of diazonium, which then rapidly collapse creating small bursts of heat and pressure,” said Darwish associated professor.
“This triggers a reaction that forms a stable and organic layer for glass, which makes it permanently repellent to water or positively charged, depending on the type of diazonium salt used. Unlike conventional coatings, which wear over time, our method creates a chemical bond at the molecular level, which makes it much more lasting and environmental.”
The study co -author, Dr. Tiexin Li, research associate at the MLS School of Curtin, said that the ability to modify glass surfaces in a simple and sustainable way has long -range implications in multiple industries.
“Glass is used everywhere, from cars and buildings to industrial filters, but its natural tendency to attract water limits its performance,” he said. “Unlike traditional coatings, this film will not take off, it will dissolve in water or deteriorate, so it is ideal for real world applications where reliability and durability are key. This could mean lighter windshield with strong rains, windows of self -impiators and solar panels that remain free of dust.”
The co -author Zane Datson, also from the MLS School of Curtin, highlighted another unexpected benefit: the capacity of the modified glass to attract bacteria, fungi and algae.
“This is very exciting since we can adapt glass properties for specific uses, including advanced filtration systems and biofuel production,” Datson said. “For example, coated glass can help unite yeast in the elaboration of beer, capture bacteria in wastewater filtration systems or act as a chemical barrier for microorganisms in air filters.”
The research team is now looking for industry partners to test and expand technology, particularly in the automotive, construction and environmental sectors.
This research was supported by the Australian Research Council and highlights the leadership of the University of Curtin in Innovation in Materials Sciences. It was carried out in collaboration with the University of Queensland, the University of Flinders, the University of Western Australia and the Charles Sturt University.