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Metal and PA-12 composite material for 3D printing and preparation method of metal and PA-12 composite material

A PA-12, composite material technology, applied in the field of 3D printing, can solve the problems of PA-12's large shrinkage rate and easy warpage deformation, and achieve the effect of low shrinkage rate, improved mechanical properties, and reduced warpage.

Inactive Publication Date: 2016-06-15
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the large shrinkage rate of PA-12, it is easy to produce warping deformation during the molding process; for functional parts with high performance requirements, PA-12 needs to be further improved in terms of strength, modulus, and heat distortion temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A 3D printing metal PA-12 composite material, prepared from the following raw materials in parts by weight: 250 parts of copper powder, 750 parts of PA-12 nylon material, 2 parts of coupling agent, 5 parts of dispersant, 5 parts of lubricant, 18 parts of toughening agent; Its concrete preparation method step is:

[0025] Step 1: Prepare copper powder, PA-12 nylon material, coupling agent, dispersant, lubricant and toughening agent material, and dry each raw material for later use, so that the moisture content of each raw material is less than 0.05%;

[0026] Step 2: Weigh 250 parts of copper powder, 350 parts of PA-12 nylon material, 2 parts of coupling agent, 5 parts of dispersing agent, 5 parts of lubricant, and 18 parts of toughening agent according to parts by weight;

[0027] Step 3: Add the copper powder weighed in step 2 to the planetary ball mill, add the coupling agent weighed in step 2 and continue mixing for 10 minutes, then add the dispersant and lubricant w...

Embodiment 2

[0032] A 3D printing metal PA-12 composite material, made from the following raw materials in parts by weight: 300 parts of copper powder, 350 parts of PA-12 nylon material, 3 parts of coupling agent, 10 parts of dispersant, 6 parts of lubricant, 20 parts of toughening agent; Its concrete preparation method step is:

[0033] Step 1: Prepare copper powder, PA-12 nylon material, coupling agent, dispersant, lubricant and toughening agent material, and dry each raw material for later use, so that the moisture content of each raw material is less than 0.05%,;

[0034] Step 2: Weigh 300 parts of copper powder, 350 parts of PA-12 nylon material, 3 parts of coupling agent, 10 parts of dispersant, 6 parts of lubricant, and 20 parts of toughening agent according to parts by weight;

[0035] Step 3: Add the copper powder weighed in step 2 to the planetary ball mill, add the coupling agent weighed in step 2 and continue mixing for 10 minutes, then add the dispersant and lubricant weighed ...

Embodiment 3

[0040] A 3D printing metal PA-12 composite material, made from the following raw materials in parts by weight: 330 parts of copper powder, 370 parts of PA-12 nylon material, 5 parts of coupling agent, 15 parts of dispersant, 10 parts of lubricant, 125 parts of toughening agent; Its concrete preparation method step is:

[0041] Step 1: Prepare copper powder, PA-12 nylon material, coupling agent, dispersant, lubricant and toughening agent material, and dry each raw material for later use, so that the moisture content of each raw material is less than 0.05%;

[0042] Step 2: Weigh 330 parts of copper powder, 180 parts of PA-12 nylon material, 5 parts of coupling agent, 15 parts of dispersant, 10 parts of lubricant, and 125 parts of toughening agent according to parts by weight;

[0043] Step 3: Add the copper powder weighed in step 2 to the planetary ball mill, add the coupling agent weighed in step 2 and continue mixing for 10 minutes, then add the dispersant and lubricant weigh...

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PUM

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Abstract

The invention belongs to the technical field of 3D printing and particularly relates to a metal and PA-12 composite material for 3D printing and a preparation method of the metal and PA-12 composite material. The metal and PA-12 composite material for 3D printing is prepared from raw materials in parts by weight as follows: 250-330 parts of copper powder, 670-750 parts of PA-12 nylon material, 2-5 parts of a coupling agent, 5-15 parts of a dispersing agent, 5-10 parts of a lubricant and 18-25 parts of a flexibilizer. Printed articles have metallic texture through improvement of the PA-12 nylon material, meanwhile, the mechanical properties of the material is improved effectively, the tensile strength and the bending strength of the printed articles are improved, and warpage produced during printing is reduced.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a 3D printing metal PA-12 composite material and a preparation method thereof. Background technique [0002] 3D printing, also known as rapid prototyping technology, is also called additive manufacturing technology. It does not require traditional tools, fixtures and machine tools, but is based on digital model files, using metal powder or plastics and other materials that are flexible. A technique for manufacturing objects of any shape by layer-by-layer printing. 3D printers can manufacture many items, such as airplanes, pistols, food, human organs, children's toys, etc. 3D printing technology is a major breakthrough in the world's manufacturing technology field in the past 20 years. It is an integration of multidisciplinary technologies such as mechanical engineering, computer technology, numerical control technology, and material science. Among them, the most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K3/08B29C47/00B29C47/92B29B9/06B33Y70/00B29C48/92
CPCB29B9/06B29C48/05B29C48/92B29C2948/92619B29C2948/92704B29C2948/92857B29C2948/92942B33Y70/00C08K3/08C08K2003/085C08L77/02
Inventor 毛彦龙李文岩林航
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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