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Three-dimensional printing photosensitive resin material containing solid rubber and preparation method

A solid rubber, 3D printing technology, applied in epoxy resin coatings, rubber derivative coatings, additive processing, etc., can solve problems such as high brittleness, restrictions on the large-scale popularization and application of additive manufacturing technology, aging and yellowing, etc., to achieve The effect of performance improvement

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

However, it still has imperfections. At present, most of the technologies are still in the stage of conception and exploration, and ordinary enterprises cannot afford high-end equipment and products that can be industrialized. These factors limit the additive manufacturing process to a large extent. Large-scale popularization and application of manufacturing technology
As far as the light-curing materials we are currently using are mostly imported from abroad, the price is expensive, but the product performance is unsatisfactory, brittle, and aging yellowing is serious, and the processing performance needs to be further improved.

Method used

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  • Three-dimensional printing photosensitive resin material containing solid rubber and preparation method
  • Three-dimensional printing photosensitive resin material containing solid rubber and preparation method
  • Three-dimensional printing photosensitive resin material containing solid rubber and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Proportion according to mass percentage:

[0023]

[0024] 2. Preparation method: a 3D printing photosensitive resin material containing solid rubber, the preparation method of which comprises the following steps:

[0025] (1) Preparation of solid rubber: natural rubber mastication, with toluene as solvent, maleic anhydride as graft monomer, described natural rubber: maleic anhydride=(1.5-2.5): 1, temperature is 70-90°C , react for 2h to obtain the grafted product NR-g-MAH; then use triethylenediamine as an initiator to react with hydroxyethyl methacrylate, said hydroxyethyl methacrylate: natural rubber: triethylenediamine=1 : 1: (0.01-0.1), the final product NR-MAH-HEMA was obtained; separated with acetone to obtain a gel-like substance, dried at 60-80°C for 1-2d and taken out; extracted by Soxhlet extractor for 12-48h, Dry at 60-80°C for 1-2 days before use; freeze in liquid nitrogen and grind with a grinder to obtain solid rubber with a size of 300 meshes.

...

Embodiment 2

[0029] 1. Proportion according to mass percentage:

[0030]

[0031] 2. Preparation method: a 3D printing photosensitive resin material containing solid rubber, the preparation method of which comprises the following steps:

[0032] (1) The preparation of solid rubber is the same as in Example 1.

[0033] (2) Weigh 10g, 5g, 45g, and 26g of hydroxyl acrylic resin, urethane acrylate resin, epoxy acrylate resin, and trimethylolpropane triacrylate according to the above mass percentage, and weigh solid rubber, UV-369, Each 10g, 3g, 1g of N,N-dimethylaniline was put into the mixer and stirred, the stirring speed was set to 500r / min, and the time was 0.5h. Curing is carried out in a light curing machine, the coating thickness is 1-5μm, the light curing wavelength is 300-400nm, and the curing time is 60s.

[0034] 3. The effect of this embodiment: the universal tensile machine and the impact test are used to test, and the results are as follows: the impact strength is 130J / M, th...

Embodiment 3

[0036] 1. Proportion according to mass percentage:

[0037]

[0038] 2. Preparation method: a 3D printing photosensitive resin material containing solid rubber, the preparation method of which comprises the following steps:

[0039] (1) The preparation of solid rubber is the same as in Example 1.

[0040] (2) Weigh 8g, 11g, 11g, 40g of hydroxyl acrylic resin, polyurethane acrylate resin, epoxy acrylate resin, and styrene according to the above mass percentage, and weigh solid rubber, UV-1173, N,N-dimethyl Each 20g, 5g, 5g of aniline was put into a mixer and stirred, and the stirring speed was set to 500r / min, and the time was 0.5h. After standing without air bubbles, it was coated on the surface-treated iron sheet, and placed in a light curing machine for curing. , the coating thickness is 1-5μm, the photocuring wavelength is 300-400nm, and the curing time is 60s.

[0041] Three, the effect of this embodiment: the universal tensile machine and the impact test are used to ...

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Abstract

The invention belongs to the technical field of three-dimensional printing photosensitive resin materials, and discloses a three-dimensional printing photosensitive resin material containing solid rubber. The photosensitive resin material is prepared from, by mass, 1%-20% of the solid rubber, 30%-80% of acrylic resin, 10%-40% of diluents, 1%-5% of initiators and 1%-5% of accelerants. The photosensitive resin material has the advantages that the solid rubber NR-MAH-HEMA is synthesized, the brittleness problem of photosensitive resin for three-dimensional printing on the present market is effectively solved by introducing rubber molecules, and the rubber molecules are added into the photosensitive resin material as the solid parts through a technical mean that the rubber molecules are frozen with liquid nitrogen and then ground; use is easy, the material source is wide, and the toughness of the photosensitive material is greatly improved. The invention further discloses a preparation method of the three-dimensional printing photosensitive resin material containing the solid rubber.

Description

technical field [0001] The invention belongs to the technical field of 3D printing photosensitive resin materials, and in particular relates to a 3D printing photosensitive resin material containing solid rubber and a preparation method thereof. Background technique [0002] 3D printing technology, also known as rapid prototyping manufacturing and additive manufacturing technology, has been frequently reported in major news reports in the past two years. However, the concept of 3D printing is not just emerging. Its core manufacturing idea first originated in the United States at the end of the 19th century. By the late 1980s, 3D printing technology had been developed and widely known. The reason why rapid prototyping manufacturing technology has become popular in a short period of time, and even known as the "third industrial revolution", is mainly based on "faster", "more refined", "less expensive" and "more suitable for industrial production". "It completely outperforms t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/12C08F291/10C08F291/08C08F290/12C08C19/28C09D175/14C09D133/00C09D163/10C09D115/00B33Y70/00
Inventor 高延敏赵君高洋陈亮
Owner JIANGSU UNIV OF SCI & TECH
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