A new kind of concrete is developed by researchers that is not just strong, soundproof, and heat-insulating but is capable of repelling stuff like soda or coffee. Even better, it deflects dust specks off the wall together with the liquids. Researchers have attempted to build self-cleaning surfaces for a while now, usually including hydrophobic constituents to the surfaces. However, there are restrictions. The chemicals are subject to wear and scratch over time. Also, as it is known, the chemicals deteriorate concrete that is not suitable for building structures.
The scientists wished to devise a simple technique to create self-cleaning concrete and accomplished that by including an emulsifier, oil, and a hydrophobic silicone polymer known as polydimethylsiloxane (PDMS). The constituents were included to wet concrete. Because of the emulsifier, the oil created droplets that enclosed the PDMS. The concrete was then desiccated and heated vaporizing the oil and keeping behind PDM apertures on the concrete. The resultant concrete was mechanically strong, lightweight, and repelled liquids & dust.
The scientists verified its capabilities to fend off all kinds of liquids comprising beer, milk, coffee, soy sauce, & dyed and any of it didn’t leave a tint. Even after rendering it to heat treatment, mechanical grinding, and contact with chemicals, it stayed “superhydrophobic.” The team directed by Xin Xu got the clue for the self-cleaning concrete from our Mother Nature.
On a similar note, scientists have developed a material that instantaneously vaporizes upon accomplishing a mission. The substance developed by the research group of Kohl at the Georgia Institute of Technology is likely much more elusive compared to a self-destructing message. To cut a long story short, the polymer “self-destroys” and vanishes once it comes in touch with the sunlight. Already scientists have suggested utilizing the material to build things that can transport significant packages into inimical territories.
