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Singapore scientists learned how to get superior airgel from old tires



Scientists from the open university of Singapore have every reason to believe that only 40% of the funds used were sent for recycling - so they set themselves the goal of finding an alternative solution to this problem. There was no fourth plan, only the idea was to isolate rubber from tire material and give it a new shape. For example, for holding it in a newspaper.

During the experiments, scientists produced fine fragments in a mixture of safe solvents and water to clean the rubber of impurities. Then the solution was boiled until a homogeneous mass was formed, at a temperature of -50ºC and lyophilized in a vacuum chamber for 12 hours. The output was a dense and lightweight airgel.

It turned out to be much stronger in the rubber base. After applying a coating of methoxytrimethylsilane, it also became waterproof, which immediately determined the promising area of ​​its application. Yesterday's trash will help get rid of other types of waste and pollution.

But most of all, Singaporean scientists are pleased with the economic side of the invention. Creating a sheet of rubber airgel with an area of ​​1 sq.m. and 1 cm thick takes 12-13 hours and costs $ 7. The process can be easily scaled and turned into a commercially attractive business. Especially, given the enormous reserves and low cost of the source material.

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