Electric board is suitable for low frequency circuit. Glass fiber sheet, also known as epoxy sheet, is suitab...
PF electric board is also known as plastic board, phenolic laminated board. It is made of high quality bleached wood paper and lint paper as a reinforcement, and phenolic resin as a resin binder made from high purity and fully synthetic petrochemical raw materials.
Electric boards are suitable for PCB drilling, silicone rubber mold. Jig, switchboard, electrical machinery parts are suitable for high mechanical performance requirements of motor, electrical equipment and insulation structure parts. The composition of Electric boards are phenolic resin. In general, the temperature classification of phenolic laminated board is E, the highest temperature is 120 ℃. If the working environment is more than 120 ℃ for a long time, electric insulation performance will be weakened, it is what we called the insulation aging. The breakdown voltage will drop.
Epoxy FR4 is epoxy glass fiber board. Epoxy resin is a general term for organic polymer compounds containing two or more epoxy groups in the molecule. Except for a few, their relative molecular weight is not high. The molecular structure of epoxy resin is characterized by the active epoxy groups in the molecular chain, which can be located at the end of the chain, in the middle or in a circular structure. Due to the active epoxy groups in the molecular structure, they can cross-link with many kinds of curing agents to form insoluble and insoluble polymers with a three-way network structure. Epoxy board: it is made of glass fiber cloth with epoxy resin by bonding, heating and pressuring, production. The model is 3240. It is suitable for machinery, electrical and electronic components with high insulation structure, with high mechanical and dielectric properties, good heat resistance and moisture resistance. Heat resisting class is F (155 degrees). The density is 1.9.