A kind of non-fiber-reinforced fluorine-containing resin-based copper-clad laminate and preparation method thereof
A technology of fluorine-containing resin and preparation steps, applied in the field of communication materials, can solve the problems of limited improvement of mechanical strength of fluorine-containing resin substrate, and achieve the effects of good industrialized production basis, simple operation process and low production cost
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Embodiment 1
[0029] Add 40 parts of SiO2 (Xinyi Hongrun) to a mixed solvent composed of 80 parts of water and 20 parts of ethanol, and stir evenly at room temperature; Continue stirring at 60°C for 12 hours; then, add 3 parts of ETFE emulsion (DuPont Teflon® 532-6210), stir at room temperature for 6 hours, remove the solvent by filtration, and dry the solid at 110°C for 12 hours to obtain a surface composed of KH550 and ETFE. Modified SiO2 particles; Weigh 100 parts of polytetrafluoroethylene emulsion (DuPont Teflon® PTFE DISP30, solid content 60%) and 38 parts of the above SiO2 particles modified by KH550 and ETFE, stir at room temperature for 12 hours, then add 14 parts dropwise 2wt / v% PEI aqueous solution, continue to stir for 2 hours, and then remove the solvent by filtration, and dry the solid at 120°C for 12 hours to obtain a fluorine-containing resin mixture; set the molding temperature to 380°C, and the molding pressure to 120~130kg / cm 2 , The molding time is 6 hours, and the fluor...
Embodiment 2
[0031] Add 75 parts of TiO2 (Tianjin Zhongzheng Huamei Technology) and 15 parts of SiO2 (Xinyi Hongrun) to a mixed solvent composed of 75 parts of water and 25 parts of ethanol, and stir well at room temperature; add 2 parts of silane coupling agent KH550 (Nanjing Shuguang General Chemical Plant), raise the temperature of the system to 60°C, and continue to stir for 12 hours; then, add 6.3 parts of ETFE emulsion (DuPont Teflon® 532-6210), stir at room temperature for 6 hours, remove the solvent by filtration, and dry the solid at 110°C for 12 hours , so as to obtain KH550 and ETFE co-modified TiO2 / SiO2 composite particles; Weigh 100 parts of polytetrafluoroethylene emulsion (DuPont Teflon® PTFE DISP30, solid content 60%) and 75 parts of the above TiO2 / SiO2 co-modified by KH550 and ETFE Composite particles, after stirring at room temperature for 12 hours, add 10 parts of 2wt / v% PEI aqueous solution drop by drop, continue stirring for 2 hours, then remove the solvent by filtratio...
Embodiment 3
[0033] Add 40 parts of Al2O3 (Zibo Hengbang) and 20 parts of SiO2 (Xinyi Hongrun) to a mixed solvent composed of 70 parts of water and 30 parts of ethanol, and stir evenly at room temperature; add 1.6 parts of silane coupling agent KH550 (Nanjing Shuguang Chemical General plant), raise the temperature of the system to 55°C, and continue to stir for 12h; then, add 4.5 parts of ETFE emulsion (DuPont Teflon® 532-6200), stir at room temperature for 6h, remove the solvent by filtration, and dry the solid at 110°C for 12h. In order to obtain Al2O3 / SiO2 composite particles co-modified by KH550 and ETFE; weigh 70 parts of polytetrafluoroethylene emulsion (DuPont Teflon® PTFE DISP30, solid content 60%), 30 parts of tetrafluoroethylene-perfluoroalkoxy vinyl ether Copolymer emulsion (DuPont Teflon® PFAD 335D, solid content 60%) and 50 parts of the above-mentioned Al2O3 / SiO2 composite particles modified by KH550 and ETFE were stirred at room temperature for 12 hours to obtain a uniform dis...
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