The invention provides a spraying
polyurea elastomer applied to a mine, a method for making the same and a construction method. The spraying
polyurea elastomer can solve the problem of poor wearing resistance in the prior art. The invention comprises the following technical proposals that: the spraying
polyurea elastomer applied to the mine comprises two compositions A and R, wherein, the composition A is a semi-
prepolymer synthesized by 45 to 65 portions of polyisocyanate and 35 to 55 portions of polyether
polyol; the composition R comprises 55 to 80 portions of amine terminated polyether, 15 to 33 portions of chain
extender and 5 to 25 portions of antiwear filler; and the compositions A and R are matched for use according to an
isocyanate index of between 0.9 and 1.2. The spraying polyurea elastomer has good
physical performance, high wearing resistance, good oil resistance, hydrolization resistance,
bacteria resistance and
aging resistance and good construction performance and can be used in a vibration
sieve equipment lining, a flotation equipment lining, etc. of the mine and other application places which have high requirement on wearing resistance.