| abstract |
The invention discloses a preparation method of spherical ceramic powder for vehicle-mounted copper clad laminates. The method uses angular glass powder with low hardness, low electrical conductivity and low ion content as raw material, and then through surface treatment, the angular glass powder has good dispersibility and fluidity, and is spheroidized at high temperature to obtain small specific surface area, high sphericity and voids. Small and stable spherical ceramic powder. Compared with the angular glass powder raw material, the ceramic powder prepared by the invention has lower specific surface area, neutral pH, and further reduced electrical conductivity and ion content, and is applied to vehicle-mounted copper clad laminates. At the same time, the drilling wear is smaller, and it has better CAF resistance. |