The invention discloses a toughening masterbatch with compatibilizing function and a preparation method thereof. 1) Soak SEBS in silicone oil and let it stand for later use, and dry PC for later use; 2) Dissolve initiator in modified monomer, mix with oil-soaked SEBS after complete dissolution, and then conduct internal mixing to obtain graft-modified SEBS; 3) Crush the graft-modified SEBS and mix it with TPU in an internal mixer; 4) Uniformly mix the blend obtained in step 3) with pure PC, dry in an oven, and perform melt blending and granulation through a twin-screw extruder to obtain the masterbatch. The invention prepares a SEBS/TPU/silicone oil ternary blend by free radical copolymerization using TPU, SEBS and vinyl-containing silicone oil as monomers, and grafts GMA components. The copolymer prepared by the method of the invention has high elastomer component content and many long side chains, which can effectively improve compatibilization and toughening effects.
Area Code: CN
Application Number: CN202411575421.7
