Thanks to properties such as heat resistance, corrosion resistance, and excellent electrical insulation, phenolic resins are widely used across various industrial sectors and serve as vital basic synthetic materials in industrial production.
Electrical and Electronics Industry
- Manufacturing of high-insulation components: Water-soluble phenolic resins are used to produce various electrical components with high insulation performance, ensuring safe circuit operation.
- Production of electronic-grade materials: Used in electronic chip packaging, printed circuit board (PCB) manufacturing, and insulating coatings for electronic components; also utilized in semiconductor packaging and the production of electronic-grade copper-clad laminates.
- Specialty electronic materials: Conductive phenolic resins can be used to create anti-static floor coatings and electromagnetic shielding materials, while thermally conductive phenolic resins are used for heat-dissipating coatings on electronic devices.
Composite Materials and Reinforced Plastics
- Preparation of reinforced plastics: By impregnating various fibers and fabrics followed by compression molding, reinforced plastics with high mechanical strength and excellent overall properties are produced; these materials are suitable for secondary machining.
- High-end composite materials: Serving as the matrix resin for carbon fiber prepregs, they are used in the encapsulation of aerospace engine components, spacecraft thermal insulation layers, and the manufacture of ablation-resistant missile nose cone components.
- Modified composite materials: Phenolic resins modified with glass fibers or carbon fibers are used to produce fiberglass products and sporting goods, such as golf club shafts.
Foundry and Abrasive Tool Industries
- Foundry sand mold binders: Characterized by good curing properties and adjustable demolding times; the resulting sand molds and cores exhibit "secondary hardening" during high-temperature casting, which helps prevent thermal cracking defects in castings.
- Abrasive tool manufacturing: Used as a bonding agent for diamond grinding wheels and conventional grinding wheels; the strong adhesion and high heat resistance significantly enhance the grinding efficiency and service life of the wheels.