Phenol-formaldehyde resin (PF), known as one of the earliest synthetic resins, possesses the following characteristics:
Thermal Resistance: It can maintain stability at high temperatures with a high decomposition temperature.
Mechanical Strength: It has high hardness and rigidity, and good wear resistance.
Chemical Resistance: It has good resistance to acids, alkalis, and organic solvents.
Insulation: It has excellent electrical insulation properties and is widely used in electrical equipment.
Flame Retardancy: It is not prone to combustion, and produces little smoke when burning.
Dimensional Stability: It does not easily deform after curing, with good dimensional stability.
Age Resistance: It maintains stable performance over long-term use and is resistant to aging.
Applications of Phenol-Formaldehyde Resin
Phenol-formaldehyde resin is widely used in various fields:
Electrical and Electronic: Used in the manufacturing of switches, sockets, circuit boards, and other insulating components.
Automotive Industry: Used for heat-resistant and wear-resistant parts such as brake pads and clutch plates.
Building Materials: Used in the production of plywood, particleboard, and others.
Aerospace: Used in the production of high-temperature-resistant composite materials.
Coatings and Adhesives: Used as high-temperature-resistant coatings and strong adhesives.
Daily Necessities: Used to manufacture heat-resistant and durable items such as tableware and handles.
Foundry: Used as a bonding agent in sand casting.
Friction Materials: Used in brake pads, clutch plates, and others.
Summary
With its heat resistance, chemical corrosion resistance, and insulation properties, phenol-formaldehyde resin is widely used in the electrical, automotive, construction, aerospace, and other fields, making it an indispensable material in modern industry.