Epoxy / Phenolic Laminate Cloth Sheet / Bar / Tube
- 1.7 EUR/kg. - from 200000 kg.
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- In detail
Epoxy / Phenolic Laminate Cloth / Paper Sheet / Bar / Tube
Introduction
Epoxy / Phenolic Laminate Cloth / Paper Sheet / Bar / Tubes are composed of two or more layers of resin - impregnated fibers or fabrics that are laminated and thermally pressed into a whole.
It can be a plate, tube, rod or other shape. Laminated products can be processed into various insulation and structural parts, which are widely used in motors, transformers, high and low voltage electrical appliances, electrical instruments and electronic equipment.
Laminated products, using fiber paper and cloth as the substrate, impregnated or coated with different adhesives, hot pressed and rolled into a layered structure electrical insulating material.
Substrates based on organic fibers include wood fiber paper, cotton fiber paper, cotton cloth, and synthetic fibers such as polyester and aromaticpolyamide.
The substrate of inorganic fiber includes alkali - free glass cloth, asbestos and so on. Commonly used adhesives are phenolic resin, epoxy resin, melamine resin, silicone resin, diphenyl ether and polyimide.
Classification
The performance of laminates depends on the substrate and adhesive as well as the molding process.
1. According to its composition, characteristics and heat resistance, laminates can be divided into the following two types.
(1) Organic substrate laminates - wood pulp insulation paper, cotton fiber paper, cotton cloth, etc. as reinforcement materials. The long - term use
temperature can reach 120℃, and synthetic fiber products have also been developed as reinforcing materials.
(2) Inorganic substrate laminates - use inorganic glass fiber cloth, alkali - free glass fiber mat, etc. as reinforcement materials. The long - term use
temperature is 130~180℃, and even higher temperatures can be reached, depending on the binder resin.
2. Laminated plastic products are classified into laminated plates, laminated tubes, laminated rods and molded laminated products according to their shapes and uses. Copper - clad laminates for printed circuits and adhesive paper capacitor sleeve cores as capacitor sleeves for high - voltage electrical appliances are two types of special laminated plastic products.
Laminated board: including laminated paper board, cloth board, glass cloth board and copper clad laminate.
①Laminated cardboard: It is made of insulating paper impregnated with synthetic resin glue and then hot pressed. With good dielectric properties, mechanical properties and machining properties, it is suitable for various insulating structural parts in electrical equipment.
②Laminated fabric board: It is made by hot pressing cotton cloth impregnated with synthetic resin glue. It has good mechanical processing
properties. Its hardness, splitting resistance and impact strength are better than that of paperboard, but its electrical properties are not as good as that of laminated paperboard. Its use is the same as laminated paperboard.
③Laminated glass cloth board: It is made of alkali - free glass cloth impregnated with different synthetic resins by hot pressing. Its mechanical
properties, heat resistance and water resistance are higher than those of laminated paperboard and cloth board, but the bonding strength is slightly worse. The use is the same as laminated paperboard.
④Copper - clad laminate: It is made of alkali - free glass cloth or cotton fiber paper impregnated with phenolic resin or epoxy phenolic resin as the substrate, and electrolytic copper foil is applied on one or both sides of the substrate, and then formed by hot pressing. It has good mechanical properties and dielectric properties as well as high peel strength. Mainly used as a printed circuit board for electronic equipment.
3. Rolled laminated products: including paper, cloth rolled products and capacitive adhesive tape casing cores.
①Paper and cloth roll products: it is made of insulating wound paper, cotton cloth, glass cloth dipped or coated with synthetic resin, then rolled, impregnated and dried. Commonly used resins are phenolic resins, epoxy phenolic resins, and modified silicone resins. Paper and cloth roll products can be made into rods, tubes or cylinders. Its dielectric properties and mechanical strength are higher than general plastic compression products, but lower than laminates and cloth boards. Mainly used as insulating structural parts.
②Capacitive tape paper sleeve core: It is made of winding paper coated with synthetic resin, then dried, hot rolled and heat treated. In the rolling, a layer of aluminum foil is sandwiched as an electrode every certain thickness. It is a series capacitor with adhesive tape as the medium. It can be used as an insulator for the lead - out end of high - voltage transformers and switches.
③Molded laminated products: Insulating paper, cotton cloth, glass cloth, etc. impregnated with synthetic resin, and formed by hot pressing in a forming mold. It has rod - shaped molded products, V - rings and other special - shaped molded products. It has high mechanical properties, dielectric properties and moisture resistance. Mainly used as insulating structural parts for motors, electrical appliances and other equipment.