Photocuring 3D printed vinyl star-shaped polyphosphate composite photosensitive resin as well as preparation method and application of photocuring 3D printing vinyl star-shaped polyphosphate composite photosensitive resin

Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to photocuring 3D printed vinyl star-shaped polyphosphate composite photosensitive resin as well as a preparation method and application thereof. The material comprises the following components in percentage by weight: 40%-70% of a vinyl star-shaped polyphosphate high polymer material, 5%-60% of a cross-linking agent, 5%-25% of a photoinitiator, 5%-40% of a diluent, 0%-25% of a solvent and 0%-30% of a filler. The photosensitive resin provided by the invention can be processed by adopting photocuring three-dimensional forming additive manufacturing and other technologies while maintaining good biocompatibility and degradability, is good in processability, has important economic value and is widein application range.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a light-curing 3D printing vinyl star-shaped polyphosphate composite photosensitive resin and its preparation method and application. Background technique [0002] The raw material used in the stereoscopic additive manufacturing technology (SLA) is a liquid photosensitive resin containing unsaturated bonds, and other materials can also be added to form a composite material. The computer-controlled ultraviolet laser beam is used to form the cross-section of each layer of the computer model. Scan the path point by point, so that the thin layer of resin in the scanned area undergoes photopolymerization or photocrosslinking reaction and then cures. When one layer is cured, move the worktable in the vertical direction to cover the surface of the previously cured resin with a new layer. The liquid resin is scanned and solidified layer by layer, and finally a three...

AI Technical Summary

Problems solved by technology

SLA technology has the advantages of high precision, good surface quality, stable performance, and high mechanical strength of the product. Its disadvantage is that the molded product needs to be cleaned to remove impurities, which may cause product deformation, and the photosensitive resin is expensive and generally cannot be degraded.

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