A kind of halogen-free medium tg high cti flame retardant epoxy glass fiber cloth-based laminate and preparation method thereof
A technology of epoxy glass fiber cloth and glass fiber cloth, applied in the directions of lamination, lamination device, lamination auxiliary operation, etc., can solve the problems of weak peel strength and poor heat resistance, and achieve low water absorption and low Z axis. Expansion coefficient, the effect of meeting the flame retardant requirements
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Embodiment 1
[0044] 1. Ingredients:
[0045] (1) Dispersion of filler: First, add a kind of phosphorus-containing epoxy resin and phenolic epoxy resin into the barrel of the high-speed mixer according to the amount of 50 parts and 20 parts by weight, and then add 50 parts of PMA (PMA mainly plays the role of adjusting viscosity, so that Filler is better dispersed), push the batching bucket under the high-speed mixer, turn on the high-speed mixer, add 120 parts of filler (filler type is aluminum hydroxide, silicon dioxide), the filler must be added while stirring, and start timing after the addition is completed Each tank is stirred for more than 4.5H. When the filler is dispersed, the high-speed stirring needs to be turned on to reach more than 1000r / Min;
[0046] (2) Resin into the tank: Add 180 parts of novolac epoxy resin to the batching tank. After the amount of resin is added, add the above-mentioned resin with fillers to the batching tank. For resin, it is necessary to confirm that ...
Embodiment 2
[0071] Embodiment 2 (preparation of flame-retardant heat-resistant copper-clad foil epoxy glass fiber cloth-based laminate with different formula ratios):
[0072] (1) Dispersion of filler: First, add a kind of phosphorus-containing epoxy resin and phenolic epoxy resin into the barrel of the high-speed mixer according to the amount of 48 parts by weight and 18 parts by weight, and then add 48 parts of PMA (PMA mainly plays the role of adjusting viscosity, so that better dispersion of the filler), push the batching bucket under the high-speed mixer, turn on the high-speed mixer, add 118 parts of filler (the filler type is aluminum hydroxide, the purity is above 99%), the filler must be added while stirring, after the addition is completed Start timing and stir each tank for more than 4.5H. When the filler is dispersed, the high-speed stirring needs to be turned on to reach more than 1000r / Min;
[0073] (2) Resin into the tank: Add 178 parts of novolac epoxy resin to the batchin...
Embodiment 3
[0098] Example 3 (preparation of flame-retardant heat-resistant copper-clad epoxy fiberglass cloth-based laminates with different formula ratios):
[0099] (1) Dispersion of filler: First, add a kind of phosphorus-containing epoxy resin and phenolic epoxy resin into the barrel of the high-speed mixer according to the amount of 52 parts and 22 parts by weight, and then inject 52 parts of PMA (PMA mainly plays the role of adjusting the viscosity, so that Filler is better dispersed), push the batching bucket under the high-speed mixer, turn on the high-speed mixer, add 122 parts of filler (filler type is aluminum hydroxide, silicon dioxide), the filler must be added while stirring, and start timing after the addition is completed Each tank is stirred for more than 4.5H. When the filler is dispersed, the high-speed stirring needs to be turned on to reach more than 1000r / Min;
[0100] (2) Resin into the tank: Add 182 parts of novolak epoxy resin to the batching tank. After the amou...
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