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Composite 3D printing material and preparation method thereof

A 3D printing and raw material technology, applied in the field of 3D printing materials, can solve problems such as 3D printing is not easy, pungent smell, cracking, etc., and achieve the effects of good toughness, improved tensile strength, and improved heat resistance

Inactive Publication Date: 2018-06-22
WUHU LINYI ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, 3D printing material suppliers can be divided into two categories, one is PLA series and the other is ABS series. PLA series is easy to 3D print, but it does not fully have the material properties and thermal properties required by the final product; and ABS series Although it is hard and heat-resistant, it is not easy to 3D print, especially large parts tend to warp, the heat shrinkage of the part can cause it to crack along the layers, and it can also produce a pungent smell when 3D printing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A composite 3D printing material proposed by the present invention comprises the following raw materials in parts by weight: 30 parts of photosensitive resin, 15 parts of modified aramid pulp, 12 parts of talcum powder, 8 parts of pigment, 5 parts of polycaprolactone, fat 2 parts of dibasic acid ester, 6 parts of ethyl acetate, 2 parts of lubricant, 1 part of coupling agent;

[0020] Among them, the preparation of the modified aramid pulp is as follows: mix 0.5 parts of silane coupling agent and 5 parts of absolute ethanol, then add 10 parts of aramid pulp, ultrasonically disperse for 0.5 h, then carry out mechanical stirring for 4 h, and then use HCl Adjust the pH to 4, adjust the reaction temperature to 50°C, and ultrasonically disperse for 1 hour to obtain a uniform aramid pulp dispersion, centrifuge, wash with distilled water until the pH is neutral, and dry to obtain the modified aramid pulp;

[0021] Wherein, the lubricant is a mixture of white mineral oil, silico...

Embodiment 2

[0027] A composite 3D printing material proposed by the present invention comprises the following raw materials in parts by weight: 50 parts of photosensitive resin, 30 parts of modified aramid pulp, 20 parts of talcum powder, 15 parts of pigment, 10 parts of polycaprolactone, fat 5 parts of family dibasic acid ester, 12 parts of ethyl acetate, 5 parts of butyl stearate, 4 parts of coupling agent;

[0028] Among them, the preparation of the modified aramid pulp is as follows: mix 1 part of silane coupling agent and 10 parts of absolute ethanol, then add 20 parts of aramid pulp, ultrasonically disperse for 1 hour, then carry out mechanical stirring for 5 hours, and then use HCl to adjust Adjust the pH to 5, adjust the reaction temperature to 55°C, and ultrasonically disperse for 3 hours to obtain a uniform dispersion of aramid pulp, centrifuge, wash with distilled water until the pH is neutral, and dry to obtain the modified aramid pulp.

[0029] The present invention also prop...

Embodiment 3

[0034] A composite 3D printing material proposed by the present invention comprises the following raw materials in parts by weight: 40 parts of photosensitive resin, 22 parts of modified aramid pulp, 16 parts of talcum powder, 11 parts of pigment, 8 parts of polycaprolactone, fat 3.5 parts of dibasic acid ester, 9 parts of ethyl acetate, 3.5 parts of ethylene bis stearamide, 2.5 parts of coupling agent;

[0035] Among them, the preparation of modified aramid pulp is as follows: mix 0.8 parts of silane coupling agent and 8 parts of absolute ethanol, then add 15 parts of aramid pulp, ultrasonically disperse for 0.7 hours, and then perform mechanical stirring for 4.5 hours, and then use Adjust the pH to 4.5 with HCl, adjust the reaction temperature to 55°C, and ultrasonically disperse for 3 hours to obtain a uniform dispersion of aramid pulp, centrifuge, wash with distilled water until the pH is neutral, and dry to obtain the modified aramid pulp.

[0036] The present invention a...

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PUM

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Abstract

The invention discloses a composite 3D printing material and a preparation method thereof and relates to the technical field of 3D printing materials. The composite 3D printing material comprises thefollowing raw materials in part by weight: 30-50 parts of photosensitive resin, 15-30 parts of modified aramid pulp, 12-20 parts of talcum powder, 8-15 parts of pigment, 5-10 parts of polycaprolactone, 2-5 parts of aliphatic diester, 6-12 parts of ethyl acetate, 2-5 parts of a lubricating agent and 1-4 parts of a coupling agent. The composite 3D printing material prepared by the preparation methoddisclosed by the invention is easy for 3D printing, and a printed product has higher toughness, adhesiveness and impact strength.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a composite 3D printing material and a preparation method thereof. Background technique [0002] 3D printing is a rapid prototyping technology, known as the core technology of the "third industrial revolution". The complex forging process can get the final product, which can realize structural optimization, material saving and energy saving in production. [0003] Material is the material basis of 3D printing, and it is also the bottleneck restricting the development of 3D printing. At present, 3D printing material suppliers can be divided into two categories, one is PLA series and the other is ABS series. PLA series is easy to 3D print, but it does not fully have the material properties and thermal properties required by the final product; and ABS series Although the series is hard and heat-resistant, it is not easy to 3D print, especially large parts tend to war...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L77/10C08L67/04C08L91/00C08L83/04C08K13/02C08K5/09C08K3/34C08K5/11B33Y70/00
CPCB33Y70/00C08L101/00C08L2201/08C08L2205/035C08L77/10C08L67/04C08L91/00C08L83/04C08K13/02C08K5/09C08K3/34C08K5/11
Inventor 吕月林
Owner WUHU LINYI ELECTRONICS SCI & TECH
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