Paper-based composite adsorption material as well as preparation method and application thereof

The invention discloses a paper-based composite adsorption material as well as a preparation method and application thereof. The paper-based composite adsorption material is of a sandwich structure and comprises a lower fiber layer, a middle fiber and adsorbent composite layer and an upper fiber layer which are stacked in sequence, the adsorbent and the fiber in the fiber and adsorbent composite layer are uniformly dispersed. The bursting strength of the paper-based composite adsorption material can reach 302 kPa, the filtering speed at the normal temperature is high, after old transformer oil of a certain power supply bureau is filtered through the paper-based composite adsorption material at the normal temperature, the dielectric loss factor is reduced to 0.00449%, the volume resistivity is increased to 983.4 * 10 < 9 > omega.m and is far better than the specified index of GB/T 5654-2007, and the paper-based composite adsorption material is suitable for being used in a power supply bureau. And compared with