Phenol-formaldehyde glue is primarily used in the production of which material?

Phenol-formaldehyde glue is primarily used in the production of plywood due to its excellent water resistance and strong bonding properties. This type of adhesive allows for the creation of multiple thin layers of wood veneers, which are glued together to form a composite sheet. Plywood is particularly exposed to moisture, especially in applications like aircraft structures and marine environments, making the water-resistant characteristics of phenol-formaldehyde crucial.

In addition to its bonding strength, phenol-formaldehyde glue provides good thermal stability and resistance to chemical degradation, which are important for the structural integrity of plywood in various conditions with temperature changes and humidity. These qualities make phenol-formaldehyde glue a favored choice in the industry for constructing high-performance plywood that meets strict safety and durability standards in aviation and other fields.

Although particle board, laminates, and solid wood furniture may also utilize adhesives, they often employ different types of glues that are better suited for their specific applications and properties. This context highlights the unique role of phenol-formaldehyde glue in plywood production.