Fenolformaldehydbaserte

Fenolformaldehydbaserte, often referred to as phenolic resins, are a class of synthetic polymers produced by the reaction of phenol with formaldehyde. This chemical process, known as condensation polymerization, results in a thermosetting plastic that is rigid and infusible after curing. The initial reaction can yield either a linear or branched polymer, depending on the reaction conditions and the ratio of reactants.

These resins were among the first synthetic plastics to be commercially produced, with Leo Baekeland developing the first fully synthetic plastic, Bakelite, in 1907, which is a type of phenol-formaldehyde resin. The properties of phenol-formaldehyde resins can be widely varied by controlling the reaction conditions, the type of phenol used, and the addition of other substances.

Phenol-formaldehyde resins are known for their excellent heat resistance, electrical insulation properties, and good mechanical strength. They also exhibit good resistance to chemicals and solvents. Due to these characteristics, they find applications in a wide range of industries. They are commonly used as binders in the production of plywood, particleboard, and other wood composites, as well as in the manufacturing of laminates, molding compounds, coatings, and adhesives. Their high thermal stability makes them suitable for applications requiring resistance to heat, such as in automotive parts and electrical components.