Adhesive
Adhesive
Adhesive (/ədˈhiːsɪv/), also known as glue, cement, mucilage, or paste, is a non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.
Etymology
The term "adhesive" comes from the Latin word adhaesivus, which means 'sticking to'. It was first used in the 17th century.
Types of Adhesives
There are several types of adhesives available, each with its own specific properties and uses. Some of the most common types include:
- Epoxy: A type of adhesive that is known for its high strength and durability. It is often used in construction and industrial applications.
- Polyurethane: This adhesive is flexible and resistant to weather, making it ideal for outdoor applications.
- Cyanoacrylate: Also known as super glue, this adhesive is known for its fast setting time.
- Silicone: This adhesive is flexible and resistant to high temperatures, making it ideal for applications that require flexibility and heat resistance.
- Pressure-sensitive adhesive: This type of adhesive is sticky in dry form and adheres to surfaces upon contact. It is commonly used in tapes and labels.
Related Terms
- Cohesion: The intermolecular forces that hold together the molecules in a solid or liquid.
- Adhesion: The tendency of dissimilar particles or surfaces to cling to one another.
- Viscosity: A measure of a fluid's resistance to flow.
- Tack: The stickiness of an adhesive.
- Curing: The process in which a chemical reaction or physical action takes place, resulting in a harder, tougher, or more stable linkage (such as an adhesive bond).
- Polymerization: A process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks.
External links
- Medical encyclopedia article on Adhesive
- Wikipedia's article - Adhesive
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