The invention discloses an ultra low temperature fast
vulcanization strengthening
adhesive used by
rubber shoes and a preparation method of the strengthening
adhesive, which is characterized in that: firstly,
natural rubber is masticated to form masticated rubber, product A is obtained by mixing the masticated rubber and the
synthetic rubber, the product B is obtained by mixing the
polyethylene glycol and the silica, the product C is obtained by mixing the vulcanizing agent, the
vulcanization accelerator and the
vulcanization active agent; the product A is put into the rubber refiner to be refined for 0.5 to 1 minute, the product C is added into the rubber refined and keep on refining for 2 to 5 minutes, and then softener is added into the refiner to be refined homogenously, when the discharged material reaches the flattening
machine, the supplementary re-
processing is carried out to obtain the rubber compound, at last
sulfur is added into the rubber compound to obtain the ultra low temperature fast vulcanization strengthening
adhesive. The preparation method of the strengthening adhesive has the advantages that: the prescription of the strengthening
adhesive materials are improved, the crosslinking stress of the strengthening adhesive is enhanced, thus, the crosslinking stress is ensured to be larger than the rebound force of the outsole plus the
expansive force produced by the foaming
sponge, and the crosslinking calibration speed is increased; meanwhile, the rubber foxing
delamination problem is totally avoided.