| abstract |
The present invention relates to the coated carbon nano tube compound material of a kind of polymer-silica, its preparation method, prepreg and copper-clad base plate.By mass percentage, the carbon nano tube compound material that this polymer-silica is coated comprises the carbon nanotube 5% ~ 25% of coated with silica, polymkeric substance 70% ~ 90% and catalyzer 0.1% ~ 5%.Silicon-dioxide has higher insulating property, makes the conductivity of the carbon nanotube of coated with silica lower thus reduces the conductivity of this matrix material; And, silicon-dioxide inhibits the reunion of carbon nanotube, simultaneously can with polymkeric substance generation surface reaction, improve interfacial interaction, make carbon nanotube can be dispersed in the polymer, be conducive to preparing mechanical property better, copper-clad base plate that dielectric properties are lower. |