Definition of superglue
Time：2013-06-01 13:43:17 Hits：1891
Name: super glue (super glue)
Source: Industrial Adhesives
Characters: Store canned or tubes and other containers. Containing toluene solvent. Others such as thinner and lighter fluid, gasoline, spray paint, paint thinner, white, and other daily necessities legislation can be inclusive of organic solvents.
Abuse ways: placed in an empty plastic bag and rub release organic solvents.
Poison: Start taking a confused, euphoria, inability to concentrate, blurred vision, gait disorders such as space walk, slurred speech and so on. Often due to inhalation of vomit trachea or remove the plastic tape suffocation caused by breathing also cause heart failure, sudden death. Long-term use causes apathy, resulting in a variety of floating air or swimming hallucinations, disorientation, easy to lose self-control and cause some antisocial acts of violence. Chronic poisoning caused by anemia, mental deterioration, irritable, muscle atrophy, difficulty in breathing.
Edit this paragraph Why such a powerful glue
Superglue veritable - just drop you can put your thumb and index finger permanently stuck together, you do not even have time to "Oh come on" sound; 6 cm2 adhesive can be about more than a ton of things stick . So this strange substance What is the principle? Its main component is the secret, cyanoacrylate (C5H5NO2, is often used as a chemical buffer).
Cyanoacrylate is an acrylic resin, almost instantaneous adhesive (a strong chemical bond is formed it is the most). It is only necessary to trigger the reaction of the hydroxide ions present in the water. Hydroxide ions is very easy to obtain, because almost anything you might want to bonding surfaces will contain at least trace amounts of moisture.
White plastic (e.g. Elmer (Elmer's) WHITE) is carried out by evaporation of the solvent bonding. Elmer's white glue where washability multipurpose solvent is water. Evaporation, the diffusion into the material within the gap polyvinylacetate latex will form a flexible bond. On the other hand, glue through a process known as anionic polymerization. Cyanoacrylate after exposure to water molecules are interconnected, they are convergent synthesis chain, thereby forming a rigid plastic mesh. Thickening and hardening glue until coated molecular beam can not move further.
If you think cyanoacrylate strong ability to repair damaged items, then please look at other applications bar. Superglue smoked sometimes used for criminal investigation, to discover hidden fingerprints.
Principle is as follows:
Fingerprint needs to be detected items are placed in a heated gas closed container. In the vessel, the cyanoacrylate; it will evaporate, and a fan circulating distribute it in the container. The residual material on the fingerprint (such as amino acids and glucose) will react with the gasification glue, and to render the fingerprint. Another interesting application is the use of cyanoacrylate instead of sutures to close the wound. The researchers found that by changing the type of glue in alcohol can reduce the toxicity of the compound of the organization, such as the ethanol or methanol, butanol or octanol replaced. Through further research, this approach is expected to be more widely applied, and eventually replace stitches. Incidentally, if you find that your fingers are strong adhesive to live, so little acetone nail polish remover can help you fingers apart.
