HIGHLY FUNCTIONAL RADIO WAVE ABSORBER BASED ON NATURAL LACQUER

摘要

PURPOSE: A highly functional radio wave absorber based on a natural lacquer is provided, which shows an improved radio wave absorbing power compared with a rubber ferrite absorber. CONSTITUTION: The ratio wave absorber comprises 30-80 wt% of a mixture of natural ceramics and ferrite; and 20-70 wt% of a natural lacquer. The mixture of natural ceramics and ferrite comprises 0.1-30 wt% of natural ceramics and 70-99.9 wt% of ferrite. Preferably the natural ceramics is granite and comprises 79.7 wt% of SiO2, 9.87 wt% of Al2O3, 0.21 wt% of Fe2O3, 3.79 wt% of K2O, 2.8 wt% of Na2O, 1.59 wt% of CaO, 0.86 wt% of MgO and 0.5-2 ppm of Ge. Optionally cashew can be used instead of lacquer.