FR-4 is a common composite material that is widely used in the manufacture of electronic circuit boards. It consists of fiber glass cloth and imported epoxy resin. And it has high mechanical properties, dielectric properties, electrical insulation properties. The insulation class is F, and the main colors are white (primary), light green, black and yellow.
· Dielectric Performance: Black FR-4 epoxy sheet has high dielectric performance and low dielectric loss tangent, which helps reduce signal transmission delay and is suitable for products with high-performance electronic insulation requirements.
· Insulation Resistance: The material has extremely high insulation resistance and can maintain high insulation performance even after being immersed in water, ensuring the safe operation of electrical equipment.
· Breakdown Voltage: The breakdown voltage of black FR-4 epoxy sheet is high. It is usually up to 60kV or more and can withstand high electric field strength without breakdown.
Black FR-4 epoxy sheet performs well at a glass transition temperature of 150°C. And it can remain stable at a high temperature of 160°C without deformation or melting.
The material has high strength, high modulus and high toughness. It is suitable for various mechanical processing. Its excellent mechanical properties can enhance the strength and rigidity of the material and extend its service life and durability.
The material has good chemical corrosion resistance. And it can resist erosion by a variety of chemicals, including acids, alkalis, salts, etc. This allows it to maintain good performance in corrosive environments.
The material can be easily processed into various shapes and sizes to meet different design requirements. At the same time, it also has good machinability and can be processed by cutting, drilling, grinding and other processes.
Black FR-4 epoxy sheet is widely used in many fields:
Electronic field: The material is used to manufacture printed circuit boards (PCBs), insulating components, circuit protection films, etc.
Industrial field: The material is used as equipment insulation support partitions, insulation pads, transformer insulation boards, etc.
New energy field: The material is also used in solar substrates and new energy batteries.
Despite the black FR-4 epoxy sheet has many advantages, it also has some limitations:
Heat dissipation capacity: As the power of electronic products continues to increase, the heat dissipation capacity of black FR-4 epoxy sheet may not be sufficient to meet the needs of some high-power devices. This may cause the device to overheat and affect performance and life.
Environmental requirements: As environmental regulations become increasingly stringent, circuit board materials must meet specific environmental standards. This poses new challenges to the production and recycling of black FR-4 epoxy sheets, requiring more environmentally friendly production processes and recycling methods.
In the future, it is necessary to continuously develop new production processes and material formulas to improve the comprehensive performance of black FR-4 epoxy sheets and meet the ever-changing market needs. At the same time, it is also necessary to strengthen the research on recycling and reuse technologies to reduce the negative impact on the environment.
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