With poly ( ethylene terephthalate )( PET ) as the matrix, methylmethacrylate / co / acrylonitrile / co / butadiene / styrene copolymer ( MABS ) as the toughener, PET / MABS / MMT nanocomposites were prepared by melt blend in a co-rotating twin screw extruder. 以聚对苯二甲酸乙二酯(PET)为基体,以(甲基丙烯酸甲酯/丙烯腈/丁二烯/苯乙烯)共聚物为增韧剂,采用熔融共混法制备了PET/蒙脱土纳米复合材料。