Composite filling material for copper-clad plate and preparation method thereof
A technology for composite filling materials and copper clad laminates, which is applied in the field of composite filling materials for copper clad laminates and its preparation, which can solve the problems of high hardness and achieve the effect of low hardness and good performance
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Embodiment 1
[0025] Sample number 1#, potassium sodium feldspar, kaolin, bauxite, silica mineral raw materials, calcite, and nano-graphite powder in the formula raw materials were weighed in a mass ratio of 1:10:10:50:60:0.3; the particle size Directly select 600 mesh ore powder. The compound raw materials require that the content of the magnetic substance of each mineral is not more than 200ppm, the electrical conductivity is less than 200ppm, and it is ground to 200 mesh.
[0026] Preparation of activated silica mineral raw material: mix quartz sand, diatomaceous earth and porous quartz powder with a mass ratio of 4:1:2 and place them in ammonium bifluoride with a mass concentration of ammonium bifluoride of 5% and a mass concentration of sulfuric acid of 3%. Treat in the solution for 5 minutes, filter, and discard the filtrate; wash the silicon dioxide mineral raw material treated with the ammonium bifluoride solution with a 5% hydroxymethylpropylcellulose solution until the pH remains ...
Embodiment 2
[0032] Sample number 2#, potassium sodium feldspar, kaolin, bauxite, silica mineral raw materials, calcite, and nano-graphite powder in the formula raw materials were weighed in a mass ratio of 1:10:23:50:47:0.1; the particle size Directly select 600 mesh ore powder. The compound raw materials require that the content of the magnetic substance of each mineral is not more than 200ppm, the electrical conductivity is less than 200ppm, and it is ground to 200 mesh.
[0033] Preparation of activated silica mineral raw material: mix quartz sand, diatomaceous earth and porous quartz powder with a mass ratio of 4:1:2 and place them in ammonium bifluoride with a mass concentration of ammonium bifluoride of 3% and a mass concentration of sulfuric acid of 5%. Treat in the solution for 5 minutes, filter, and discard the filtrate; wash the silicon dioxide mineral raw material treated with the ammonium bifluoride solution with a 3% hydroxymethylpropylcellulose solution until the pH remains ...
Embodiment 3
[0039] Sample number 3#, potassium sodium feldspar, kaolin, bauxite, silica mineral raw materials, calcite, and nano-graphite powder in the formula raw materials were weighed in a mass ratio of 1:3:23:55:47:0.5; the particle size Directly select 600 mesh ore powder. The compound raw materials require that the content of the magnetic substance of each mineral is not more than 200ppm, the electrical conductivity is less than 200ppm, and it is ground to 200 mesh.
[0040] Preparation of activated silica mineral raw material: mix quartz sand, diatomaceous earth and porous quartz powder with a mass ratio of 4:1:2 and place them in ammonium bifluoride with a mass concentration of ammonium bifluoride of 8% and a mass concentration of sulfuric acid of 1%. Treat in the solution for 10 minutes, filter, and discard the filtrate; wash the silicon dioxide mineral raw material treated with the ammonium bifluoride solution with a hydroxymethylpropylcellulose solution with a mass fraction of ...
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Abstract
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