Jet type 3D-printing light curing material

Abstract

The invention discloses a jet type 3D-printing light curing material. The formula of the material comprises 75 to 90 parts of polypropyleneglycol diglycidyl ether diacrylate, 30 to 55 parts of cationic monomers, 0.5 to 2 parts of initiators, 3 to 5.5 parts of accelerators, 0 to 0.5 part of an active diluent monomer and 0.5 to 5 parts of additives, in parts by weight, wherein the density of the polypropyleneglycol diglycidyl ether diacrylate is 1.16g/cm<2> at the temperature of 25 DEG C, and the viscosity of the polypropyleneglycol diglycidyl ether diacrylate is 1810mPs.s; during the 3D printing process of the polypropyleneglycol diglycidyl ether diacrylate, the nozzle working temperature is 50 to 55 DEG C, and the surface tension is 31.5 to 31.0mN/m; when the material is prepared, the accelerators are used after being added into the cationic monomers to be uniformly mixed, and the mass ratio of the cationic monomers to the accelerators is 10:1. The light curing material disclosed by the invention is relatively high in light curing speed, and the mechanical properties of the light-cured material are relatively good.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a jet-type 3D printing photocurable material. Background technique [0002] Three-dimensional rapid prototyping technology is a relatively popular technology in manufacturing technology. It is a stacked manufacturing technology. Its principle is to create objects by adding materials to objects layer by layer. It obtains the path, limitation and method of stacking through discrete, and forms a three-dimensional entity through the superposition of stacked materials, which is combined with a computer system to improve the efficiency and accuracy of rapid prototyping, which is in stark contrast to the traditional removal molding. Construction, approximate processing, slice processing, section processing, section superposition, post-processing, etc. [0003] Among them, the 3DP process adopts three-dimensional three-dimensional molding. The section of the part is printed on the m...

AI Technical Summary

Problems solved by technology

[0004] Among them, stereolithography technology has advantages that other molding technologies cannot match in terms of large objects, fineness, and rapid prototyping, but its cost is relatively high

In terms of 3D printing light-curing materials, the materials are required to have low viscosity, fast curing speed, high strength after curing, and moderate flexibility. However, due to the influence of their own molecular structure properties, the commonly used light-curing resins have relatively high relative viscosity. , need to be used with a large amount of diluent, relatively high cost

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