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

A photosensitive resin and 3D printing technology, which is applied in the field of photosensitive resin materials for 3D printing, can solve problems such as compatibility and toughness, and achieve the effect of improving compatibility and solving brittleness problems

Inactive Publication Date: 2015-12-30
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem to be solved: the purpose of the invention is to overcome the compatibility and toughness problems existing in the prior art, and provide a 3D printing photosensitive resin material containing modified butadiene rubber and its preparation method

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Proportion according to mass percentage:

[0029]

[0030] 2. Preparation method:

[0031] (1) Preparation of modified butadiene rubber: with (CH 3 ) 3 With CLi as the initiator and cyclohexane as the solvent, butadiene undergoes anionic polymerization and is capped with ethylene oxide and methanol at a temperature of 40-50°C for 1-2 hours to obtain polybutadiene with terminal hydroxyl groups. Diene telechelic polymer with a molecular weight of 1000-10000 is esterified with low-molecular-weight acrylic acid at 120-150°C using triethylenediamine as a catalyst for 8 hours to introduce double bond groups, wherein the mass ratio of the (CH 3 ) 3 CLi: cyclohexane: butadiene: ethylene oxide: methanol = (1-2.5): 30: (1.5-2.5): (1.5-2.5): 1, the polybutadiene telechelic polymer: Acrylic acid: triethylenediamine = 1:1: (0.01-0.05).

[0032] (2) Weigh 40g, 30g, 10g, 8g of acrylic resin, urethane acrylate resin, epoxy acrylate resin and trihydroxyacrylate respectively,...

Embodiment 2

[0037] 1. Proportion according to mass percentage:

[0038]

[0039] 2. Preparation method:

[0040] (1) The preparation of modified butadiene rubber is the same as in Example 1.

[0041] (2) Take by weighing acrylic resin, urethane acrylate resin, epoxy acrylate resin and 1,6-hexanediol diacrylate 20g, 10g, 27g, 10g respectively, and weigh 30g of prepared modified butadiene rubber , weigh 2g of UV-1173 and 1g of phosphate methacrylate, put them into a mixer, set the speed at 300r / min, and take 10-20min to obtain a photosensitive resin material;

[0042] (3) After the photosensitive resin material obtained in step (2) is left to stand for 15 minutes, it is coated on a surface-treated iron sheet, and the iron sheet is placed in a light curing machine for curing. The light curing wavelength is set to 350-400nm, and the light curing machine The conveyor belt speed is 1.5cm / s, and the curing time is 60s.

[0043] Three, the effect of this embodiment:

[0044] A universal te...

Embodiment 3

[0046] 1. Proportion according to mass percentage:

[0047]

[0048]

[0049] 2. Preparation method:

[0050] (1) The preparation of modified butadiene rubber is the same as in Example 1.

[0051](2) Weigh acrylic resin, urethane acrylate resin, epoxy acrylate resin and styrene 10g, 10g, 10g, 40g respectively, weigh 26g of prepared modified butadiene rubber, weigh 2g2,2-diene Methoxy-2-phenylacetophenone and 2g methacrylic acid phosphate, put into the mixer and stir, set the speed at 300r / min, the time is 10-20min, let it stand for 15min and coat it on the surface-treated iron sheet, Place the iron sheet in the light curing machine for curing, set the light curing wavelength to 350-400nm, the speed of the light curing machine conveyor belt to 1.5cm / s, and the curing time to 30s.

[0052] 3. The effect of this embodiment: the mechanical properties of the composite resin were tested by a universal testing machine, the impact strength was 374J / M, the tensile strength was ...

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Abstract

The invention belongs to the technical field of photosensitive resin materials for 3D printing, and discloses a 3D printing photosensitive resin material containing modified butadiene rubber. The 3D printing photosensitive resin material containing the modified butadiene rubber is prepared from, by mass, 10%-30% of the modified butadiene rubber, 30%-80% of acrylic resin, 10%-40% of diluents, 1%-2% of initiators and 1%-2% of accelerants. A polybutadiene telechelic polymer with a terminal hydroxyl group is obtained through anionic polymerization, esterification is conducted on the polybutadiene telechelic polymer and acrylic acid, and a double-bond group is introduced; the 3D printing photosensitive resin material containing the modified butadiene rubber has the advantages that by means of an anion synthetic method, a polymer with the molecular weight narrower in distribution is obtained, processing is facilitated, a ubiquitous brittleness problem is effectively solved by introducing a rubber chain segment, and after esterification is conducted on the acrylic acid which is one of original systems of the photosensitive resin and double bonds are introduced, the compatibility problem is thoroughly solved. The invention further provides a preparation method of the 3D printing photosensitive resin material containing the modified butadiene rubber.

Description

technical field [0001] The invention belongs to the technical field of photosensitive resin materials for 3D printing, and in particular relates to a 3D printing photosensitive resin material containing modified butadiene rubber and a preparation method thereof. Background technique [0002] 3D printing is a technology that has attracted more attention at present. It involves all aspects of production and life, and it involves many printing materials. Including: metal, ceramic, plastic, cement. Because polymer materials have the advantage of being able to quickly change from liquid to solid material, they have been developed first. In the process of using 3D materials, people found that the printed materials can only be used as models or temporary products, and cannot be directly used in the field of life and industry. This can no longer meet people's requirements and wishes for the actual use of 3D materials. . [0003] The above-mentioned problems of 3D polymer material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L33/00C08L75/14C08L63/10C08C19/28
Inventor 高延敏高洋赵君
Owner JIANGSU UNIV OF SCI & TECH
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