The invention belongs to the technical field of
organic polymer material products and in particular relates to a
polyurethane elastomer printing rubber roller and a preparation method thereof. The
polyurethane elastomer printing rubber roller is prepared from the following raw materials in parts by weight: 0.8-1.2 parts of polyalcohol, 0.25-0.4 part of polyisocyanate, 0.1-0.2 part of curing agent, and 0.00001 part of reaction control agent, wherein polyalcohol is
polyester polyalcohol 218. The invention further provides the preparation method of the
polyurethane elastomer printing rubber roller. The preparation method comprises the following steps of: preparing a
prepolymer and a curing component at first; and pouring to obtain the
polyurethane elastomer printing rubber roller. According to the invention, the
processing technology is simplified, so that mixing, forming and vulcanizing of materials are integrated; the printing and
dyeing rubber roller prepared by the invention is good in
solvent resistance, easy for
machining and good in elasticity; in the aspect of
solvent resistance, the printing and
dyeing rubber roller prepared by the invention is 2 times of other rubber rollers; the
surface smoothness of the printing and
dyeing rubber roller prepared by the invention can be up to the mirror state; the service life of the printing and dyeing rubber roller prepared by the invention is 2-3 times that of other rubber rollers; the service life of the general printing and dyeing rubber roller is 36 hours; and the service life of the printing and dyeing rubber roller prepared by the invention is about 80 hours.