用于5G高频/高速覆铜板的苯并口恶嗪改性进展

The requirements of 5G communication on the dielectric properties, thermal properties and flame retardancy of copper clad laminates were reviewed. The advantages and disadvantages of the resin matrix for high frequency/high speed copper clad laminates were compared. The research progress of benzoxazine used in copper clad laminate was mainly introduced. Benzoxazine has excellent heat resistance and flame retardancy, excellent dimensional stability, low dielectric constant and dielectric loss, and was widely used in electronic components. Modification of molecular design and nanomaterials or copolymerization can further improve its dielectric properties, thermal properties and flame retardancy, thus can be used as high-performance resin matrix or adhesive in rigid copper clad laminate and flexible copper clad laminate, respectively. Finally, according to the market demands of high frequency/high speed copper clad laminates, the applications of benzoxazine resin were prospected.