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An unexpected superglue
Superglue was invented by accident. When Dr. Gerry Coover was trying to invent a plastic in 1942, which was applied for the production of "flies" - sights for machines, he worked with the chemical sinakrilem, and once found that when exposed to moisture component glued all the tools with which Coover did his experiments. Nevertheless it has been patented product, only in 1955, and in 1958 superglue first went on sale, "blowing up" the market.
Adhesives based on cyanoacrylates easily withstand the load of 150 kg / cm2 and the temperature 70-80 C.
Superglue grasped on humidity rather than from the air. In the desert, it is problematic to use. At the core is the setting superglue cyanoacrylate polymerization reaction, from which it is composed. This reaction is catalyzed by tiny water particles in the air or on the surface of the bonded items.
But on contact with cellulose cyanoacrylate polymerizes so vigorously that is very hot and can burn. Do not believe me? Then try to put superglue on ordinary sponge, after a few seconds of interaction will smoke.
Sometimes this trick is used for the extraction of fire in extreme conditions (smoke and fumes, evolved in the course of this reaction, it is not recommended to breathe because of the potential toxicity). It is because of their ability to react with cellulose superglue is not suitable for bonding articles made of cotton or wool (wool cyanoacrylate reacts in a similar way). According to safety regulations, working, dealing with large amounts of cyanoacrylate, it is forbidden to wear cotton gloves.
If cyanoacrylate heat - the vapors are deposited on surrounding objects and in contact with traces of fat, are polymerized. It based on this one way search fingerprint - cyanoacrylate "manifests" them in the form of white patterns. If you need to get other color prints, are added to the heated cyanoacrylate dyes.
Unusual use of superglue found American doctors during the Vietnam War, when the wounds suffered in combat soldiers literally glued, thereby effectively stopping bleeding and preventing many negative health problems. So it was saved many soldiers' lives.
Spot of superglue can be cleaned with acetone or nail polish remover. It is necessary to drench liquid contamination and place in an hour rubbing the surface with a cotton cloth or soft brush, such as a tooth.
Source: i-fakt.ru/interesnye-fakty-pro-superklej/
Adhesives based on cyanoacrylates easily withstand the load of 150 kg / cm2 and the temperature 70-80 C.
Superglue grasped on humidity rather than from the air. In the desert, it is problematic to use. At the core is the setting superglue cyanoacrylate polymerization reaction, from which it is composed. This reaction is catalyzed by tiny water particles in the air or on the surface of the bonded items.
But on contact with cellulose cyanoacrylate polymerizes so vigorously that is very hot and can burn. Do not believe me? Then try to put superglue on ordinary sponge, after a few seconds of interaction will smoke.
Sometimes this trick is used for the extraction of fire in extreme conditions (smoke and fumes, evolved in the course of this reaction, it is not recommended to breathe because of the potential toxicity). It is because of their ability to react with cellulose superglue is not suitable for bonding articles made of cotton or wool (wool cyanoacrylate reacts in a similar way). According to safety regulations, working, dealing with large amounts of cyanoacrylate, it is forbidden to wear cotton gloves.
If cyanoacrylate heat - the vapors are deposited on surrounding objects and in contact with traces of fat, are polymerized. It based on this one way search fingerprint - cyanoacrylate "manifests" them in the form of white patterns. If you need to get other color prints, are added to the heated cyanoacrylate dyes.
Unusual use of superglue found American doctors during the Vietnam War, when the wounds suffered in combat soldiers literally glued, thereby effectively stopping bleeding and preventing many negative health problems. So it was saved many soldiers' lives.
Spot of superglue can be cleaned with acetone or nail polish remover. It is necessary to drench liquid contamination and place in an hour rubbing the surface with a cotton cloth or soft brush, such as a tooth.
Source: i-fakt.ru/interesnye-fakty-pro-superklej/
