Effect of silane coupling agent on peel strength of RTF copper foil for high speed and high frequency plate
With the rapid development of information technology,the high-frequency and high-speed plate copper foil is developing towards the direction of low roughness and high peel strength,and traditional high roughness standard copper foil(HTE)no longer meets the requirements,which gives birth to the low roughness reverse treated copper foil(RTF).RTF copper foil coarses the smooth surface of copper foil.SEM,tensile strength tester,peel strength tester and roughness meter are used to characterize the physical properties of RTF copper foil.The peel strength between RTF copper foil and high-frequency high-speed plate(988G)is mainly improved from the Angle of silane coupling agent.The active functional silanes containing amino group,epoxy group,vinyl group and sulfhydryl group were studied respectively.It was found that vinyl tri-methoxysilane(KBM-1003)and 988G sheet have higher bond strength.When the concentration of KBM-1003 aqueous solution is 2 g/L,the temperature is 25-35 ℃,and the pH value is 3.0-4.0,the bond strength is higher.The coating RTF copper foil and 988G sheet have high peeling strength.
high-frequency and high-speed boardslow roughnessRTF copper foilvinyl tri-methoxy silane