▎ 摘　　要

NOVELTY - Preparing polymer blend with controllable dispersed phase size and dimension, comprises adding compatibilizer into the matrix polymer, obtaining matrix phase masterbatch A by melt mixing and granulation, adding functional filler into disperse phase polymer, and forming disperse phase masterbatch B by melt mixing and granulation, vacuum-drying A and B, placing masterbatch A and B into the two extruders on the micro-nano laminated extrusion shape control device, initial lamination unit, lamination unit, flaring die, shunt and cutting machine respectively, obtaining blend functional masterbatch E containing a flaky disperse phase, subjecting dried blend functional masterbatch E to secondary processing to destroy the size and morphology of the flaky dispersed phase, selecting the secondary processing conditions to control the degree of damage, and obtaining the polymer blend F containing dispersed phase of a certain size and dimension, and blending under melt processing conditions. USE - The method is useful for preparing polymer blend with controllable dispersed phase size and dimension. ADVANTAGE - The method can synchronously control the size and dimensionality of the dispersed phase. The dimension of dispersed phase can be simply adjusted when processing for the second time, without additional stretching and compression force field, efficient and convenient. It is simple, high productivity can be continuously produced in batch, and it can be used as dispersed phase filler to prepare polymer-based high-performance multifunctional blending material. The product obtained after secondary processing can be directly used, also can be further added to the other processing temperature is lower than the secondary processing temperature of the polymer to improve the performance of polymer.