A kind of preparation method of halogen-free, high tg copper clad laminate
A copper clad laminate and solvent technology, applied in chemical instruments and methods, non-polymer adhesive additives, applications, etc., can solve problems such as low glass transition temperature, poor sheet toughness, damage to human health, etc., and achieve improved vitrification. Effect of transition temperature, increasing heat resistance and improving sheet toughness
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Embodiment 1
[0025] A preparation method of halogen-free, high Tg copper clad laminate, the steps are as follows:
[0026] (1) Get 700 parts of polyfunctional group phosphorus epoxy resin DOPO, 58 parts of o-cresol novolac epoxy resin, 25 parts of dicyandiamide solution, 1.06 parts of dimethylimidazole solution, 180 parts of talcum powder, 145 parts of aluminum hydroxide , 3.0 parts of KH550 and 700 parts of DMF, turn on the dispersing motor and emulsifying motor of the high-shear kettle, mix evenly, and prepare the glue;
[0027] (2) Coat the glue solution in step (1) on electronic grade glass cloth, and bake in an oven at 160°C for 10 minutes to prepare a prepreg;
[0028] (3) Take a number of prepregs prepared in step (2) and stack them together, cover each of their two sides with a piece of copper foil, hot press at a pressure of 2.0MPa and a temperature of 200°C for 100-130min, cool, and make Got copper clad board.
Embodiment 2
[0030] A preparation method of halogen-free, high Tg copper clad laminate, the steps are as follows:
[0031] (1) Get 700 parts of polyfunctional group phosphorus epoxy resin ODOPB, 55 parts of BPA novolac epoxy resin, 20 parts of dicyandiamide solution, 1.1 parts of dimethylimidazole solution, 180 parts of talcum powder, 145 parts of aluminum hydroxide, 3. 5 parts of KH570 and 710 parts of solvent (350 parts of acetone mixed with 360 parts of methyl ethyl ketone), turn on the dispersion motor and emulsification motor of the high-shear kettle, mix evenly, and prepare the glue;
[0032] (2) Coat the glue solution in step (1) on electronic grade glass cloth, and bake in an oven at 190°C for 5 minutes to prepare a prepreg;
[0033] (3) Take a number of prepregs prepared in step (2) and stack them together, and cover them with a piece of copper foil on each side, hot press at a pressure of 1.5MPa and a temperature of 210°C for 100min, and cool to obtain a coated prepreg. copper p...
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