Buzz
Main Insights
- Super glue is primarily made of cyanoacrylate, an acrylic resin that bonds rapidly by interacting with water molecules present on most surfaces.
- The bonding process (anionic polymerization) uses small amounts of water to initiate a reaction that creates a robust plastic mesh through interconnected polymer chains.
- This strong bond is so reliable that it is used in medical procedures to close wounds. However, caution is needed to prevent skin contact due to the glue's quick bonding properties and potential for skin damage.
Super glue contains cyanoacrylate, an acrylic resin that forms a secure bond almost immediately. The resin's molecules react with hydroxyl ions found in water. Since nearly all surfaces have some level of moisture, super glue can bond instantly to almost any object. The molecules of cyanoacrylate begin to link up and form chains when exposed to water, which intertwine to create a durable plastic mesh. This process continues until the glue thickens and hardens, halting the molecular movement.
The chemical reaction that occurs with super glue is called anionic polymerization. This reaction absorbs water to create the bond, and the heat produced can even cause burns. If you accidentally bond things together, such as your fingers, be careful when attempting to separate them.
Cyanoacrylate bonds so rapidly and securely (a bond as small as a square inch can hold over a ton of weight) that it's easy to accidentally glue your fingers together. The golden rule for dealing with super glue first aid is to avoid forcing anything apart, as it may tear your skin. Begin by removing any excess glue, but be sure to scrape it off—never use fabric, as it could trigger a chemical reaction that burns the skin. Soak your hands in warm soapy water, and gently separate your fingers using a blunt tool.
Never attempt to open the super glue cap with your mouth! Loosening lips stuck together by glue is a tricky task. Cyanoacrylate is so powerful that it can be used as a substitute for stitches to seal wounds. When mixed with a different alcohol, it becomes less toxic and safer for use on the skin.
