The invention discloses a slow-rebound memory
sponge and a preparation method thereof, and belongs to the technical field of
sponge material preparation, and the slow-rebound memory
sponge comprises the following components by weight: 100 parts of diisocyanate, 100-150 parts of polyether
polyol, 40-80 parts of slow-rebound polyether, 1-8 parts of organic
silicon resin, 4-24 parts of modified resin, 3-20 parts of
polycaprolactone resin, 1-3 parts of
silicone oil, and 2-5 parts of an opening agent. The modified resin is a
polymerization product obtained by taking 2-
acrylic acid-2-[[(butylamino)-carbonyl] oxo]
ethyl ester and
butyl acrylate as blending monomers, and the modified resin is a
polymerization product obtained by taking 2-
acrylic acid-2-[[(butylamino)-carbonyl] oxo]
ethyl ester and
butyl acrylate as the blending monomers; through a blending strategy, the organic
silicon resin, the modified resin and the
polycaprolactone resin are added into the foamed
polyurethane, so that the slow rebound resilience of the
memory foam material is improved while the air permeability is kept.