The invention relates to a
polyurethane lining plate and a preparation method thereof, and belongs to the field of wear-resistance protection of equipment. The
polyurethane lining plate consists of a
prepolymer and a curing agent containing an
ether bond at a weight ratio of 100 to (8-12), wherein the
prepolymer is prepared from the following raw materials in parts by weight of 100 parts of polyhydric
alcohol, 35-50 parts of
isocyanate, 5-10 parts of
silicon carbide particles, 0.3-0.8 part of an organotin catalyst and 0.04-0.15 part of a
coupling agent. With the adoption of the
polyurethane lining plate provided by the invention, the structural strength of a
polyurethane elastomer is improved and the
hydrolysis property of the
polyurethane elastomer is reduced; the
wear resistance of the product is effectively improved; the softness of the
ether bond is improved and the rigidity of the
ether bond is realized, so that not only can various physical and mechanical properties of the
elastomer be ensured, but also the
hydrolysis resistance stability and strength of the polyurethane lining plate are improved, the
impact deformation is prevented and the more firm structure is realized; the mounting and dismounting processes are simple and convenient, the
processing intensity of an inner liner of the equipment is reduced, and the lining plate is convenient to replace; the shut-down time for maintenance of the equipment is shortened, the
investment cost caused by equipment production is reduced, and the production efficiency is improved.