Phenolic laminated cloth board is made of cotton cloth soaked in phenolic resin, baked and hot pressed. The heat resi...
Phenolic laminated cloth board is made of cotton cloth soaked in phenolic resin, baked and hot pressed. The heat resistance grade is E grade. It has high mechanical properties, oil resistance and certain dielectric properties. The phenolic cloth board has high mechanical strength, excellent moisture resistance and heat resistance, good electrical properties (the cloth board is worse), and is easy to process. 3025 phenolic cloth board is widely used in electrical products. application. The density of phenolic laminated paper and cloth board is about 1.35g/cm, which is half lighter than aluminum. It is widely used in aviation and other structures.
3025 phenolic laminate products have good chemical resistance and are resistant to organic solvents, organic acids and dilute inorganic acids. They are suitable for many chemical equipment and are generally not suitable for alkaline media.
3025 phenolic laminated paperboard can withstand sawing, drilling, turning, milling, planing and other processing. There should be no cracks or slag after processing. The thickness is less than 3mm and can be punched. The cold stamped type does not need to be heated. General models require Punch after preheating. They are used in insulating parts for high and low voltage electrical appliances and electronic industries respectively.
The processing performance of 3025 phenolic laminated cloth board is better than that of cardboard and glass cloth board, and the bonding strength and impact strength are higher than that of cardboard. However, it has high water absorption. After absorbing moisture, the electrical insulation property decreases and it is easy to grow mold. It is not suitable for use in hot and humid areas. Therefore, it is generally used as insulating structural parts of low-voltage motors and appliances, such as washers, wedges, screws, etc. There are many types of glass cloth boards, and their properties also vary with different adhesive resins. Compared with other laminates, glass cloth boards have higher mechanical strength and heat resistance. Under high temperature, their bending and resistance Although the tensile and impact strength have decreased, they are still higher than those of plastic board and tape board.