Conductive polymer composite material and 3D printing molding method thereof

• Main Authors: NIE HUARONG, HAN XIAOLONG, HE AIHUA
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2019
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PHYSICS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TARIFF METERING APPARATUS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a novel conductive polymer composite material and a 3D printing molding method thereof. The main technical feature is the combination of 3D printing and physical coating. Specifically, a polymer material capable of being used for 3D printing is taken as a substrate, during 3D printing molding, a conductive filler is coated on the inner layer of a print sample, so that the filler forms a network on the inner layer surface of the polymer substrate to obtain the polymer composite material with a conductive function for application in the fields such as static resistance, electrical conductivity, electromagnetic shielding. According to the novel conductive polymer composite material and the 3D printing molding method thereof, the biggest advantage is that the maximum functionalization of the composite material can be achieved by using very few conductive fillers, the cost is saved, and the mechanical properties of the composite material is improved on the original basis; and in addition, b