Three-dimensional printing photosensitive resin material containing macromelecular elastomers and preparation method

A photosensitive resin and 3D printing technology, applied in the field of 3D printing materials, can solve problems such as poor toughness

Inactive Publication Date: 2015-12-23
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Technical problem: The purpose of this invention is to solve the current technical problems such as poor toughness, and provide a 3D printing photosensitive resin material containing a macromolecular elastomer, which can make the 3D printing material directly form the product

Method used

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  • Three-dimensional printing photosensitive resin material containing macromelecular elastomers and preparation method
  • Three-dimensional printing photosensitive resin material containing macromelecular elastomers and preparation method
  • Three-dimensional printing photosensitive resin material containing macromelecular elastomers and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A 3D printing photosensitive resin material containing macromolecular elastomer is composed of the following components by mass percentage: mixed photoinitiator 1%; bornyl methacrylate 8%; N-vinylpyrrolidone 1%; macromolecular elastomer 50%; 1,4-cyclohexyldimethanol divinyl ether 20%; diethoxybisphenol A dipropylene ester 20%.

[0032] Wherein, R in the structural formula of tertiary amine benzoate is methyl.

[0033] The above-mentioned 3D printing photosensitive resin material containing macromolecular elastomer, the preparation method is as follows:

[0034] (1) Preparation of macromolecular elastomer: According to the basic steps of anionic polymerization, using toluene as solvent, adding lithium-containing initiator and isoprene in sequence, reacting at 90-100 °C for 2 h to room temperature, adding ring Ethylene oxide liquid, reacted at 50-70°C for 1 h, the mass ratio of the toluene, lithium-containing initiator, isoprene, and ethylene oxide is (4-8): (0.5-1): 1: ...

Embodiment 2

[0038] A 3D printing photosensitive resin material containing macromolecular elastomer, the composition is as follows: mixed photoinitiator 4%; bornyl methacrylate 18%; N-vinylpyrrolidone 1%; macromolecular elastomer 30%; 1,4 - cyclohexyl dimethanol divinyl ether 22%; diethoxybisphenol A dipropylene ester 25%.

[0039] Wherein, R in the structural formula of tertiary amine benzoate is ethyl.

[0040] The above-mentioned 3D printing photosensitive resin material containing macromolecular elastomer, the preparation method is as follows:

[0041] (1) preparation of macromolecular elastomer: same as Example 1;

[0042] (2) Weigh out 18 g of bornyl methacrylate; 1 g of N-vinyl pyrrolidone; 30 g of macromolecular elastomer; 22 g of 1,4-cyclohexyl dimethanol divinyl ether; diethoxybisphenol A dipropylene ester 25g, mix in a mixer for 1h, the stirring speed is 500r / min, add photoinitiator 1173, 369 and tertiary amine benzoate 0.8g, 0.8g, 2.4g respectively in a dark environment, stir...

Embodiment 3

[0045] A 3D printing photosensitive resin material containing macromolecular elastomer, the composition is as follows: mixed photoinitiator 5%; bornyl methacrylate 13%; N-vinylpyrrolidone 7%; macromolecular elastomer 40%; 1,4 - cyclohexyl dimethanol divinyl ether 10%; diethoxybisphenol A dipropylene ester 25%.

[0046] Wherein, R in the structural formula of tertiary amine benzoate is tert-butyl.

[0047] The above-mentioned 3D printing photosensitive resin material containing macromolecular elastomer, and its preparation method is as follows:

[0048] (1) preparation of macromolecular elastomer: same as Example 1;

[0049](2) Weigh out 13 g of bornyl methacrylate; 7 g of N-vinyl pyrrolidone; 40 g of macromolecular elastomer; 10 g of 1,4-cyclohexyl dimethanol divinyl ether; diethoxybisphenol A dipropylene ester 25g, mix in a mixer for 1h, stirring speed is 500r / min, add photoinitiator 1173, 369 and tertiary amine benzoate 1g, 1g, 3g respectively in a dark environment, stir a...

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Abstract

The invention belongs to the field of three-dimensional printing materials, and discloses a three-dimensional printing photosensitive resin material containing macromelecular elastomers and a preparation method. The resin material is prepared by 1%-5% of mixed photoinitiators, 8%-18% of methacrylic acid borneol esters, 1%-7% of N-vinylpyrrolidone, 30%-50% of the macromelecular elastomers, 10%-25% of 1,4-cyclohexyl methanol divinyl ethers and 10%-30% of ethyoxyl bisphenol A di-acrylic ester. According to the resin material, the elastic macromolecular macromonomers which take isoprene as the first block and ethylene oxide as the second block and are provided with end groups and vinyl groups are formed by taking phenyllithium containing double bonds as the initiators through anionic polymerization; a new direction is brought for a photocuring forming technology through the molecular design and synthesis technique; the toughness of the three-dimensional printing photosensitive resin is further improved by adding the macromelecular elastomers.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, in particular to a 3D printing photosensitive resin material containing macromolecular elastomers and a preparation method thereof. Background technique [0002] The use of light rapid prototyping to manufacture 3D printing materials is the latest technology that has emerged in recent years. It has the advantages of wide material sources and fast forming speed. [0003] In the use of light-curing rapid prototyping for 3D printing polymer materials, people have gradually discovered that due to the brittleness and low mechanical strength of materials, the materials are restricted from being directly applied to real prototypes or as products. At present, the printed molded products can only be used as Models or product designs, or the use of exploring technical solutions in medical care, cannot yet directly enter people's daily lives or industry, defense, and some other sectors of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F287/00C08F220/18C08F226/10C08F216/14C08F222/14C08F2/48B33Y70/00
Inventor 高延敏赵君高洋
Owner JIANGSU UNIV OF SCI & TECH
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