3240 Epoxy Fiberglass Laminate Sheet is an insulating material that mainly composed of electrical fiber glass cloth impregnated with epoxy resin and processed through drying and hot pressing. Epoxy resin refers to organic high molecular compounds containing two or more epoxy groups in their molecules, with relatively low molecular weights in most cases. The molecular structure of epoxy resin is characterized by the presence of active epoxy groups in the molecular chain, which can be located at the end, middle, or in a cyclic structure.
The temperature resistance grade of 3240 Epoxy Fiberglass Laminate Sheet is Class B, and colors include yellow, red, green, and black. It complies with the standard GB/T1303.1-1998 (natural color). The surface of 3240 Epoxy Fiberglass Laminate Sheet should be smooth, free of bubbles, pits, and wrinkles, with allowable defects that do not affect its use, such as scratches, indentations, stains, and minor spots. The edges should be neatly cut, and the end faces should be free from delamination and cracks. The thickness of 3240 Epoxy Fiberglass Laminate Sheet is typically 0.5 to 50mm, but can also be produced in thicknesses of 50 to 150mm as required.
Low shrinkage: During the curing process, the reaction of the 3240 Epoxy Fiberglass Laminate with the curing agent is carried out by direct addition reaction or ring-opening polymerization of the epoxy group, and no water or other volatile byproducts are released, so the shrinkage is extremely low (less than 2%), which helps to reduce deformation and stress concentration during the processing.
High strength: The cured epoxy resin system has excellent mechanical properties, high mechanical strength at medium temperature, which can make it withstand large loads and not easy to break.
Good dimensional stability: Due to its low shrinkage and high strength characteristics, the 3240 Epoxy Fiberglass Laminate can maintain a stable size during long-term use and is not easy to deform or warp.
High dielectric properties: The cured epoxy resin system has a very high dielectric constant and low dielectric loss, which can effectively isolate the electric field and prevent current leakage.
Arc resistance: Under the action of the arc, the 33240 Epoxy Fiberglass Laminate can maintain stable insulation performance and is not easy to be broken down or melted, so as to protect the safety of the circuit and equipment.
Surface leakage resistance: The surface is smooth and has no pores, which can effectively prevent the current from flowing on the surface and improve the insulation effect.
Easy cutting and drilling: Machining operations such as cutting and drilling 3240 epoxy boards can be easily performed with the right tools and processes.
Strong plasticity: Through heating and pressure and other process means, the 3240 Epoxy Fiberglass Laminate can be bent, folded and other molding operations to meet the needs of various complex shapes.
High bonding strength: The polar hydroxyl and ether bonds inherent in the molecular chain of 3240 Epoxy Fiberglass Laminate make it have high adhesion to various substances, which is convenient for firm bonding with other materials.
High temperature resistance grade:Its temperature resistance grade reaches B, which can maintain stable insulation performance in high temperature environment.
Good corrosion resistance: 3240 Epoxy Fiberglass Laminate has good resistance to corrosive media such as oil, water, acid and alkali, and can be used in humid and corrosive environment for a long time without being affected.
Excellent flame retardant performance: Some3240 Epoxy Fiberglass Laminate products also have flame retardant performance, which can slow down the spread of fire in the fire and protect the safety of equipment and personnel.
Insulation structural parts:3240 Epoxy Fiberglass Laminatehas high insulation resistance and voltage strength and can effectively prevent current leakage and short circuit, so it is widely used in motors, electrical equipment as insulation structural parts.
Winding support: In large transformers, 3240 Epoxy Fiberglass Laminate is often used as an insulating support for the winding to ensure stable operation of the transformer under high voltage environment.
PCB test board: 3240 Epoxy Fiberglass Laminate is widely used in PCB test process as a test board because of its good insulation performance and machinability.
Drilling pad: In the PCB drilling process, 3240 epoxy board can be used as a pad to improve the accuracy and efficiency of drilling.
High temperature environment: 3240 Epoxy Fiberglass Laminate can maintain good physical and chemical properties and no deformation, no softening in high temperature environment, so it is widely used in industrial heating equipment, high temperature furnace and other fields as heat insulation and insulation materials.
Wet environment: Its good moisture resistance makes the 3240 Epoxy Fiberglass Laminate can maintain stable performance in wet environment, so it can be used to make equipment parts that work in wet environmental conditions.
ZTelec Group is a professional manufacturer of high-quality electrical insulation materials, integrating the research and development, production and sales of electrical and electrical insulation materials. It has more than 60 years of manufacturing experience. The production capacity and market share of insulation materials are ranked top three in the industry, and special insulation materials are ranked first.
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