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A kind of photosensitive resin and its preparation method and application

A photosensitive resin and photoinitiator technology, applied in the field of 3D printing materials, can solve the problems of complex formula and preparation process, unfavorable environmental protection, poor printing accuracy, etc., and achieve improved solid content and sintering compactness, low viscosity, and printing accuracy high effect

Active Publication Date: 2021-06-01
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several major problems with domestic photosensitive resins: 1. The system has high viscosity, slightly poor printing accuracy, and high brittleness; 2. The formula and preparation process are complicated; 3. The cost is high, the toxicity is high, and it is not conducive to environmental protection

Method used

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  • A kind of photosensitive resin and its preparation method and application
  • A kind of photosensitive resin and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Measure 60ml of isobornyl acrylate, add it to a 150ml beaker, add 40ml of ethoxylated pentaerythritol tetraacrylate, that is, the volume ratio of monofunctional monomer to multifunctional monomer is 3:2, stir magnetically for 1h to obtain a uniform mixture, use The mass of the mixed solution was weighed by a precision balance to 106 g, and 0.53 g of photoinitiator TPO, 0.5 g of UVAbsorber 1205 were sequentially added to the obtained uniform mixed solution, the stirring speed was 600 r / min, and the heating temperature was 50 °C. Magnetic stirring for 2 hours ensures that TPO and UV Absorber 1205 are fully Dissolved in the mixed solution to obtain a photosensitive resin mixed solution A for photocuring ceramic slurry 1 . Among them, UVAbsorber 1205 (purchased from Qingdao Jadejia New Material Technology Co., Ltd.) is a nitrogen heterocyclic compound, which is a solid absorber with an efficient absorption peak at 350-440 nm.

[0022] In addition, take 80ml of isobornyl ac...

Embodiment 2

[0026] Measure 20ml of isobornyl acrylate, add it to a 150ml beaker, add 80ml of polyethylene glycol diacrylate, that is, the volume ratio of monofunctional monomer to multifunctional monomer is 1:4, and magnetically stir for 1h to obtain a uniform mixture. The mass of the mixed solution was weighed by a precision balance to 109 g, and 1.09 g of photoinitiator TPO, 0.55 g of UVAbsorber LQ01 were added to the obtained uniform mixed solution in turn, the stirring speed was 600 r / min, and the heating temperature was 50 °C. Magnetic stirring for 2h ensures that TPO and UV Absorber LQ01 are Fully dissolved in the mixed solution to obtain the photosensitive resin mixed solution B for photocuring ceramic slurry 1 . Among them, UVAbsorber LQ01 (purchased from Qingdao Jadejia New Material Technology Co., Ltd.) is a nano-dispersed material, which is a liquid absorbent with an efficient absorption peak at 310-440 nm.

[0027] In addition, take 80ml of isobornyl acrylate and 20ml of poly...

Embodiment 3

[0031] Measure 80ml of acryloyl morpholine, add it to a 150ml beaker, add 20ml of ethoxylated trimethylolpropane triacrylate, that is, the volume ratio of monofunctional monomer to multifunctional monomer is 4:1, and magnetically stir for 1h to obtain a uniform The mixed solution was weighed with a precision balance to be 112 g, and 0.56 g of photoinitiator TPO, 0.56 g of UVAbsorber 1205 were added to the obtained uniform mixed solution in turn, the stirring speed was 600 r / min, and the heating temperature was 50 °C with magnetic stirring for 2 h to ensure TPO. and UV Absorber1205 fully dissolved in the mixed solution to obtain the photosensitive resin mixed solution C for photocuring ceramic slurry 1 .

[0032] In addition, take 60ml of acryloyl morpholine and 40ml of ethoxylated trimethylolpropane triacrylate (that is, the volume ratio of monofunctional monomer to multifunctional monomer is 3:2), other conditions remain unchanged, according to the above preparation method, ...

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Abstract

The invention discloses a photosensitive resin and its preparation method and application. The raw material components of the photosensitive resin include main materials and auxiliary materials; wherein, the main materials include any one of multifunctional monomers and oligomers and monofunctional monomers. The formed mixture; auxiliary materials include a photoinitiator and an ultraviolet absorber, the amount of the photoinitiator accounts for 0.5-1% of the total mass of the main material, and the amount of the ultraviolet absorber accounts for 0.5-1% of the total mass of the main material. Through the above methods, the raw material formula of the photosensitive resin of the present invention is simple, easy to prepare, cost-saving, and has the characteristics of low viscosity, low shrinkage rate and fast curing rate, and can be applied to the preparation of 3D printing photo-curable ceramic slurry, with high printing accuracy, and after curing It has certain flexibility and strong mechanical properties, which is beneficial to remove the printing support structure, and at the same time, it is beneficial to improve the solid content and sintering density of the ceramic slurry, and is beneficial to the preparation of low-viscosity ceramic slurry.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a photosensitive resin and a preparation method and application thereof. Background technique [0002] 3D printing, also known as additive manufacturing, is a cutting-edge manufacturing technology that integrates digital modeling technology, information technology, materials science, and chemistry. The Economist magazine calls it the "third industrial revolution." In recent years, with the development of aerospace, biomedical and other fields, traditional processing methods can no longer fully meet the requirements of human beings, and the personalized and customized needs of products have further pushed 3D printing technology to the national strategic level. [0003] Ceramic materials have a wide range of applications in aerospace, electronic industry, biomedical and other fields due to their high hardness, high strength, high corrosion resistance and wear resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F222/20C08F290/06C08F220/58C08F283/01C08F2/48B33Y70/00
CPCC08F2/48C08F220/18C08F220/58C08F283/01C08F290/062B33Y70/00C08F220/1818C08F222/103C08F222/104
Inventor 孙进兴白家鸣
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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