Preparation process and application of photosensitive resin for 3D printing

Abstract

The invention discloses a preparation process and application of photosensitive resin for 3D printing. The process comprises the following steps of: 1) weighing organic silicon resin powder, an organic solvent and a silane coupling agent in parts by weight and adding the components into a first container to be stirred and mixed in a forward and reverse rotation alternating mode, the silane coupling agent being prepared by weighing silane, alcohol, water and acetic acid in parts by weight and mixing the components; 2) adding a catalyst, mixing and stirring the components until a transparent anduniform first liquid is obtained, respectively weighing a complexing agent and metal alkoxide according to parts by weight, and adding the components into a second container, mixing and stirring themetal alkoxide and the complexing agent in a forward and reverse rotation alternating manner until a transparent and uniform second liquid is obtained; 2) adding the first liquid into a third container, pre-stirring the first liquid, adding a second liquid, mixing and stirring the first liquid and the second liquid, adding an active diluent, and mixing and stirring all the components; 3) adding aphotoinitiator into the third container, and continuously stirring the mixture to obtain the 3D printing photosensitive resin.

Description

technical field [0001] The invention relates to the technology in the field of 3D printing photosensitive resin, in particular to a manufacturing process and application for 3D printing photosensitive resin. Background technique [0002] The basic principle of 3D printers is "layer-by-layer manufacturing, layer-by-layer addition", using laser beams, hot-melt nozzles, etc. to stack and bond special materials such as metal powder, ceramic powder, plastic, and cell tissue layer by layer, and finally superimpose and shape them. Produce physical products. [0003] Light-curing 3D printing technology is the most widely used because of its good surface quality, high dimensional accuracy and the ability to achieve relatively fine dimensional molding. The photosensitive resin used for 3D printing is a liquid photocurable resin used for photocuring rapid prototyping; the photosensitive resin is a UV resin, which is composed of polymer monomers and prepolymers, and photo (ultraviolet ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a production process and application of photosensitive resin for 3D printing. The production process is highly controllable and effectively solves the problem of slurry settlement and dispersion At the same time, ensure the stable quality of photosensitive resin production and improve the production yield of photosensitive resin