3D printing photosensitive material taking green light as photocuring light source and 3D printer thereof

A 3D printing, photosensitive material technology, applied in the field of 3D printing, can solve the problems of low curing depth and poor curing accuracy, and achieve the effect of increasing the curing depth, reducing the curing width, and avoiding the problem of interlayer cracking.
CN113895031AInactive Publication Date: 2022-01-07SUN YAT SEN UNIV
0 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUN YAT SEN UNIV
Publication Date
2022-01-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a 3D printing photosensitive material taking green light as a photocuring light source. The 3D printing photosensitive material at least comprises a green light photo-initiation system, the green light photo-initiation system is a Norrish I type photosensitizer and a Norrish II type photosensitizer which have light absorption and initiation capability in a green light wavelength range, and the system comprises a curcumin compound / onium salt system, a boron bifluoride curcumin compound / onium salt system, a ferrocene-contained conjugated indandione compound / onium salt / N-methyl pyrrolidone system, a benzal ketone compound / onium salt system and a benzal ketone compound / amine system. The 3D printing photosensitive material has the beneficial effects that on one hand, through the principles that the longer the wavelength is, the lower the light refractive index is, and the longer the wavelength is, the stronger the light penetrability is, the curing depth of the 3D printing material can be remarkably improved, and the problem of interlayer cracking is avoided, especially for the 3D printing material with the high refractive index, such as 3D printing photosensitive ceramic slurry; and on the other hand, through the principle that the longer the wavelength is, the lower the light refractive index is, the curing width of the 3D printing material can be remarkably reduced, and the curing and printing precision can be improved, especially for the 3D printing material with the high refractive index, such as 3D printing photosensitive ceramic slurry.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of 3D printing, in particular to a 3D printing photosensitive material using green light as a light curing light source and a 3D printer thereof. Background technique

[0002] The photocuring 3D printing method refers to the 3D printing method based on the photocuring (photopolymerization) method, which has the characteristics of fast speed, high efficiency and good precision. Existing light-curing 3D printing methods mostly use ultraviolet light sources, because almost all of the current commercial photoinitiators are used under ultraviolet light.

[0003] In actual use, the photocuring 3D printing method based on ultraviolet light source has the problems of poor precision, easy delamination, and low success rate. This is because the 3D printing process is controlled by the shape and range of light in the photocuring 3D printing process, and whether it is a photosensitive resin or a powder in various photosensitive ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More