▎ 摘　　要

NOVELTY - Preparing high-performance polymer-based composite material with a double network structure involves using the polymer materials currently available for three-dimensional (3D) printing as the matrix, setting a reasonable printing filling rate, and using the characteristics of 3 printing molding. The polymer filaments are arranged in a straight line and parallel on the plane due to the pulling force of the movement of the machine head. The moving direction of the printer head is changed to make it form a certain angle with the printing direction of the upper plane, and enter the next plane for printing. The filaments between the upper and lower planes are arranged at a certain angle to each other, and form a network of holes, and according to the requirements of the required mechanical properties of the material, the number of printed layers is controlled by reciprocating in this way. USE - Method for preparing high-performance polymer-based composite material with a double network structure. ADVANTAGE - The original performance of the material is enhanced, at the same time, it avoids the influence of the processing performance caused polymer the blending. The use performance of polymer material is improved, the composite method of widening the polymer material. The mechanical property of the blending polymer material can be improved. DETAILED DESCRIPTION - Preparing high-performance polymer-based composite material with a double network structure involves using the polymer materials currently available for three-dimensional (3D) printing as the matrix, setting a reasonable printing filling rate, and using the characteristics of 3 printing molding. The polymer filaments are arranged in a straight line and parallel on the plane due to the pulling force of the movement of the machine head. The moving direction of the printer head is changed to make it form a certain angle with the printing direction of the upper plane, and enter the next plane for printing. The filaments between the upper and lower planes are arranged at a certain angle to each other, and form a network of holes, and according to the requirements of the required mechanical properties of the material, the number of printed layers is controlled by reciprocating in this way. The network hole is used, immersed the printed product in a latex containing a suitable solid content to which a vulcanizing agent has been added, and vulcanized after being ultrasonicated, then taken out and dried, and obtained high-performance polymer matrix composites with unique structures. The latex is impregnated, other fillers, including reinforcing fillers or functional fillers, can also be added to the latex to obtain a reinforcing polymer-based composite material or a functional polymer-based composite material.