The invention relates to a method for preparing
putty powder excellent in
cracking resistance. The
putty powder is prepared from, by weight, 20-30 parts of white
cement, 10-20 parts of
calcium bicarbonate, 25-35 parts of talcum
powder, 25-35 parts of ash
calcium powder and 2-4 parts of
adhesive powder. A preparation method of the
adhesive powder includes steps: (1) main agent preparation, to be more specific, taking phenolic resin adhesives as a base material, adjusting a pH value to be neutral, heating to 50-60 DEG C, adding an appropriate amount of
epoxy resin, keeping constant-temperature reaction for 5-15min, and cooling to the
room temperature; (2) functional agent preparation, to be more specific, uniformly mixing an appropriate amount of
propolis powder,
water soluble glucan and an
antioxidant, heating to 60-70 DEG C to form stable molten-state
thick fluid, filtering particle impurities, and keeping for standby application; (3)
adhesive powder finished product preparation, to be more specific, well mixing a main agent and a functional agent according to a proper proportion, and performing
spray drying to obtain adhesive powder. The
putty powder is reasonable in
raw material selection and appropriate in compatibility and has advantages of excellent
water resistance, bonding performances and antibacterial and anticorrosion performances as compared with existing putty powder.