Summary：Laminated products can be processed into various insulation and structural parts and are widely used in motors, transformers, high and low voltage electrical ap
can be processed into various insulation and structural parts and are widely used in motors, transformers, high and low voltage electrical appliances, electrical instruments and electronic equipment. Laminates can be plates, tubes, rods, or other shapes.
With the development of the electrical industry, high insulation. Laminated plastic products with high strength, high temperature resistance and adaptability to various use environments have appeared one after another. Copper-clad laminates for printed circuits have also grown rapidly due to the needs of the electronics industry. China's electrical and electronic laminates have gradually developed after liberation. China's thermosetting laminates have formed a relatively complete series.
The performance of the laminate depends on the substrate and adhesive and the molding process. According to its composition, characteristics and heat resistance, laminated products can be divided into the following two types.
(1) Organic substrate laminates-using wood pulp insulation paper, cotton fiber paper, cotton cloth, etc. as reinforcing materials The long-term use temperature can reach 120 ° C, and synthetic fiber products have also been developed as reinforcing materials.
(2) Inorganic substrate laminates—reinforced with inorganic glass fiber cloth and alkali-free glass fiber felt The long-term use temperature is 130 ~ 180 ℃, and even higher temperature can be reached, which varies with the adhesive resin.
Laminated plastic products are divided into laminates, laminated tubes, laminated rods, and molded laminates by shape and use. Copper-clad laminates for printed circuits and tape capacitor bushing cores as capacitor bushings for high-voltage electrical appliances are two types of special laminated plastic products.