On m'a dit( lasci Szabo) que les colles type Super glue3 étaient nées aux US pendant la guerre du vietnam afin de permettre aux soldats blessés de stoper une émoragie.
C'est n'importe quoi non?
urban legend.
Cyanoacrylate was discovered by Harry Coover at Eastman Kodak during World War II when searching for a way to make plastic gun-sight lenses. It did not solve this problem, since it stuck to all the apparatus used to handle it. It was first marketed to industry as well as consumers in February 1955 as a product called "Flash Glue" which is still available today and now owned by Gary Shipko, president of Super Glue International, a United States based firm. It was patented in 1956 and developed into Eastman 910 adhesive in 1958. The new glue was demonstrated in 1959 on the television show I've Got a Secret when the host Garry Moore was lifted into the air by two steel plates held together with a drop of Eastman 910. Cyanoacrylates are now a family of adhesives based on similar chemistry.
General uses
Cyanoacrylate is a tenacious adhesive, particularly when used to bond non-porous materials or those that contain minute traces of water. It is also very good at bonding body tissue, and while this can be a bothersome (or even dangerous) side effect during everyday use, it has been exploited for the benefit of suture-less surgery.
Cyanoacrylate glue has a low shearing strength, which has also led to its use as a temporary adhesive in cases where the piece can easily be sheared off at a later time. Common examples include mounting a workpiece to a sacrificial glue block on a lathe and also tightening pins and bolts.
Cyanoacrylates are often used to assemble prototype electronics (see wire wrap), flying model aircraft, and as retention dressings for nuts and bolts. Their effectiveness in bonding metal and general versatility have also made them popular amongst modeling and miniatures hobbyists. They are used to re-harden the boxes and shanks of ballerinas' pointe shoes as well.
One non-adhesive use for cyanoacrylate is as a forensic tool.[2] Fumes from warmed CA can develop latent fingerprints on smooth surfaces like glass, plastic, etc. The invisible fingerprint residues react with the CA fumes and atmospheric moisture to form a white polymer (polycyanoacrylate) on the fingerprint ridges and can then be recorded. The developed fingerprints are, on most surfaces (except on white plastic or similar), visible to the naked eye. Non-visible or poorly visible prints can be furthermore enhanced by applying a luminescent or non-luminescent stain. This technique was shown in the films Beverly Hills Cop II, National Treasure, and frequently features in the television series CSI: Crime Scene Investigation and its spin-offs.
Thin CA glue is also used as a wood finish, particularly among woodturners. Its fast drying time and glossy finish make it ideal for small applications which generally look best when glossy (such as pens), although it is messy and somewhat expensive. A common mistake made by novice users is to use an accelerator, which can cloud and thus ruin the finish.
Some climbers use glue to prevent damage to the epidermis.
[edit] Medical uses
The use of cyanoacrylate glues in medicine was considered fairly early on. Eastman Kodak and Ethicon began studying whether the glues could be used to hold human tissue together after surgery. In 1964, Eastman submitted an application to use cyanoacrylate glues to seal wounds to the United States Food and Drug Administration (FDA). Soon afterward Dr. Harry Coover's glue did find use in Vietnam—reportedly in 1966, cyanoacrylates were tested on-site by a specially trained surgical team, with impressive results. In an interview with Dr. Coover by the Kingsport Times-News, Coover said that the compound demonstrated an excellent capacity to stop bleeding, and during the Vietnam War, he developed disposable cyanoacrylate sprays for use in the battlefield.
“ If somebody had a chest wound or open wound that was bleeding, the biggest problem they had was stopping the bleeding so they could get the patient back to the hospital. And the consequence was—many of them bled to death. So the medics used the spray, stopped the bleeding, and were able to get the wounded back to the base hospital. And many, many lives were saved. ”
—Dr. Harry Coover
The original Eastman formula was not FDA approved for medical use, however, because of a tendency to cause skin irritation and to generate heat. In 1998 the FDA approved 2-octyl cyanoacrylate for use in closing wounds and surgical incisions. Closure Medical has developed medical cyanoacrylates such as Dermabond, Soothe-N-Seal and Band-Aid Liquid Adhesive Bandage.
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source wikipedia
Sujet: Colle cyanoacrylate pour blessures (superglue) (Lu 78204 fois)
