fenólicoformaldeído

Fenólicoformaldehído, also known as phenol-formaldehyde resin, is a synthetic polymer produced by the reaction of phenol and formaldehyde. This reaction results in a thermosetting plastic, meaning it hardens permanently when heated, and cannot be remelted or reshaped. These resins are known for their excellent electrical insulating properties, good heat resistance, and high mechanical strength.

The properties of phenol-formaldehyde resins can be modified by adjusting the ratio of phenol to formaldehyde and the reaction conditions. They are typically produced in two main types: novolacs, which are thermoplastic and require a curing agent, and resols, which are thermosetting and cure themselves upon heating.

Phenol-formaldehyde resins have found widespread application across various industries. They are used as binders in the production of plywood, particleboard, and laminates. Their electrical insulating qualities make them suitable for use in circuit boards and electrical components. Additionally, they are employed in the manufacturing of molded parts, coatings, adhesives, and friction materials like brake pads. Due to their durability and resistance to chemicals, they remain a valuable material in many industrial processes.