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Preparation method of photosensitive resin for 3D printing

A photosensitive resin and 3D printing technology, applied in the field of printing materials, can solve the problem of slow curing speed of photosensitive resin, and achieve the effect of fast curing speed, high activity and low viscosity

Inactive Publication Date: 2019-12-20
刘干坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Technical problem to be solved by the present invention: Aiming at the problem of slow curing speed of existing photosensitive resins, a preparation method of photosensitive resins for 3D printing is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In parts by weight, 20 parts of manganese dioxide, 1 part of soybean oil, 1 part of benzoic acid, 1 part of rosin, and 1 part of calcium carbonate were weighed respectively, and manganese dioxide, soybean oil, benzoic acid, rosin and calcium carbonate were mixed. The temperature is 220°C, the stirring speed is 500r / min, the polymerization reaction is 2h, and the reactant is obtained; in parts by weight, 10 parts of organic montmorillonite, 10 parts of reactant, and 1 part of 50% nitric acid are weighed. Cerium solution, 60 parts of deionized water, mixed organic montmorillonite and deionized water, and ultrasonically dispersed for 5 minutes at a power of 300W to obtain a suspension. Add reactants and cerium nitrate solution with a mass fraction of 50% in the suspension Put it in a ball mill and mill it for 30 minutes at a speed of 400r / min to obtain a mixed slurry; filter the mixed slurry to obtain a precipitate, wash the precipitate with deionized water 3 times, and dry...

Embodiment 2

[0041] In parts by weight, 25 parts of manganese dioxide, 5 parts of soybean oil, 3 parts of benzoic acid, 2 parts of rosin, and 3 parts of calcium carbonate were weighed respectively, and manganese dioxide, soybean oil, benzoic acid, rosin and calcium carbonate were mixed. The temperature is 235°C, the stirring speed is 550r / min, the polymerization reaction is 2h, and the reactant is obtained; in parts by weight, 15 parts of organic montmorillonite, 15 parts of reactant, and 5 parts of 50% nitric acid are weighed. Cerium solution, 70 parts of deionized water, mixed organic montmorillonite and deionized water, and ultrasonically dispersed for 8 minutes at a power of 325W to obtain a suspension. Add reactants and a 50% mass fraction of cerium nitrate solution to the suspension Put it in a ball mill and mill it for 35 minutes at a speed of 450r / min to obtain a mixed slurry; filter the mixed slurry to obtain a precipitate, wash the precipitate with deionized water 4 times, and dry...

Embodiment 3

[0043] In parts by weight, 30 parts of manganese dioxide, 10 parts of soybean oil, 5 parts of benzoic acid, 3 parts of rosin, and 5 parts of calcium carbonate were weighed respectively, and manganese dioxide, soybean oil, benzoic acid, rosin and calcium carbonate were mixed. The temperature is 250°C, the stirring speed is 600r / min, the polymerization reaction is 3h, and the reactant is obtained; in parts by weight, 20 parts of organic montmorillonite, 20 parts of reactant, and 10 parts of 50% nitric acid are respectively weighed. Cerium solution, 80 parts of deionized water, mixed organic montmorillonite and deionized water, and ultrasonically dispersed for 10 minutes at a power of 350W to obtain a suspension. Add reactants and 50% cerium nitrate solution to the suspension Put it in a ball mill and mill it for 40 minutes at a speed of 500r / min to obtain a mixed slurry; filter the mixed slurry to obtain a precipitate, wash the precipitate with deionized water for 5 times, and dr...

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Abstract

The invention relates to a preparation method of photosensitive resin for 3D printing and belongs to the technical field of printing materials. organic matter prepared from manganese dioxide, soybeanoil and benzoic acid is intercalated into organic montmorillonite, a product is doped with rare earth elements to serve as a drier of the resin, epoxy resin and phenolic resin modified vinyl ester resin are taken as oligomers, and the photosensitive resin for 3D printing is prepared in combination with a photoinitiator, a diluent, pigments and an aid and has higher curing speed; natural manganesedioxide is a compound dryer, rare earth elements have special outer electron structures, soap type catalysts prepared from the rare earth elements can oxidize or bind natural antioxidants into a complex for precipitation through valence state change, the anti-oxidative property of the antioxidants is eliminated, the oxygen uptake speed of unsaturated fatty acid is increased, surface-layer oxidative polymerization drying of unsaturated fatty acid in oil is promoted, and coordinated polymerization drying is produced by middle and bottom layers of the deep layer.

Description

technical field [0001] The invention relates to a method for preparing a photosensitive resin for 3D printing, belonging to the technical field of printing materials. Background technique [0002] Photosensitive resin refers to a resin material that can exhibit special functions under the excitation of ultraviolet light. Photosensitive resin for 3D printing refers to the liquid raw material used in photocuring rapid prototyping technology. In general, reactive oligomers (also known as oligomers), reactive diluents (also known as reactive monomers), photoinitiators, and additives such as fillers and pigments together form photosensitive resins. [0003] Photoinitiator is an important part of photosensitive resin, which plays a decisive role in the reaction speed of photosensitive resin. Usually, the amount of photoinitiator added is 3%-8% of the mass of the photosensitive resin matrix (the sum of the mass of the oligomer and the diluent). According to the different radiati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L61/06C08K13/06C08K9/04C08K9/02C08K3/34C08K3/28C08K3/22
CPCC08K2003/2262C08L61/06C08L63/00C08K13/06C08K9/04C08K9/02C08K3/346C08K3/28C08K3/22
Inventor 刘乾坤
Owner 刘干坤