ABS/carbon fiber composite material suitable for 3D printing

Abstract

The invention discloses a composite material suitable for 3D printing, wherein the composite material comprises the following components in parts by weight: 40-45 parts of polylactic acid (PLA), 40-45 parts of acrylonitrile-butadiene-styrene (ABS), 10-20 parts of carbon fibers, 4-8 parts of a toughening agent, 0.2-5.0 parts of a compatilizer, and 0.1-2.0 parts of an auxiliary agent. The toughening agent comprises styrene-acrylonitrile-butadiene rubber (ABS high glue powder); the compatibilizer comprises a maleic anhydride grafted polymer, and one or two compatibilizers of a ternary copolymer formed by copolymerizing methyl methacrylate, butadiene and a styrene copolymer and a ternary copolymer (SAG) formed by copolymerizing styrene, acrylonitrile and glycidyl methacrylate are in compatibility use. The prepared 3D printing composite material has the advantages of superior comprehensive performance, broad market prospect and application value.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a composite material suitable for 3D printing. Background technique [0002] The development of 3D printing technology has put forward new requirements for 3D printing materials. Taking melt extrusion molding technology as an example, it is necessary to design the nozzle temperature comprehensively considering the size of the plastic fuse and the molding performance. If you want to print large hollow parts, you must When considering how to separate the filling material in the center from the surface material, it is also necessary to consider that the two have good cohesion before separation, so as to avoid the collapse of the surface material. [0003] The existing 3D printing consumables are mainly single materials such as polylactic acid, ABS, PA, PVA, etc. Due to the limitations of the above-mentioned materials, the cost of polylactic acid materials is high, and the materials are ea...

AI Technical Summary

Problems solved by technology

[0003] The existing 3D printing consumables are mainly single materials such as polylactic acid, ABS, PA, PVA, etc. Due to the limitations of the above-mentioned materials, the cost of polylactic acid materials is high, and the materials are easily deformed above 55°C; ABS (acrylic acid) / butadiene / styrene terpolymer), a common engineering plastic, has heavy processing odor and is easy to deform during extrusion processing; PA is a kind of nylon material, which is expensive, difficult to process, and smelly during processing. The environment is harsh; PVA water-soluble materials are mainly used for printing support materials, and the amount of support materials is small, and the processing is easy to produce toxic gases due to the decomposition of PVA