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Preparation method of powder material for 3D printing

A powder material, 3D printing technology, applied in the 3D field, can solve problems such as short life, peeling, and limitation

Active Publication Date: 2021-09-14
道谷江苏新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing fuse deposition scheme, the use of composite materials is limited by the process and materials. The product life is not long, and it is easy to cause aging, embrittlement, peeling, etc. during use, which seriously affects the long-term application of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the powder material for 3D printing in this embodiment includes: (1) preparation of raw materials, in parts by weight: 100 parts of polymer raw materials formed by mixing high-density polyethylene and rubber elastic body according to a mass ratio of 1:1 , wherein high-density polyethylene is pretreated waste high-density polyethylene, and the pretreatment of waste high-density polyethylene is: use an ultrafine powder crusher to crush the cleaned waste HDPE plastic to obtain a particle size of 100 microns Granules, 10 parts of calcium lignosulfonate, 25 parts of graded glass fiber formed by combining short fiber glass fiber and hollow glass microspheres according to the mass ratio of 2:1, wherein the length of short fiber glass fiber is 1mm, and the diameter is 0.2mm , the diameter of hollow glass microspheres is 0.5mm, 0.8 parts of silane coupling agent KH-570, 20 parts of plasticizer dimethyl phthalate; (2) mixing: mix the above raw materials i...

Embodiment 2

[0026] The preparation method of the powder material for 3D printing in this embodiment includes: (1) preparation of raw materials, in parts by weight: 100 parts of polymer raw materials formed by mixing high-density polyethylene and rubber elastic body according to the mass ratio of 1.5:1 , wherein high-density polyethylene is pretreated waste high-density polyethylene, and the pretreatment of waste high-density polyethylene is: use an ultra-fine powder crusher to crush the cleaned waste HDPE plastic to obtain a particle size of 200 microns Granules, 15 parts of calcium lignosulfonate, 15 parts of graded glass fiber formed by combining short fiber glass fiber and hollow glass microspheres according to the mass ratio of 1:1, wherein the length of short fiber glass fiber is 2mm, and the diameter is 0.14mm , the diameter of hollow glass microspheres is 0.6mm, 1.4 parts of silane coupling agent A171, 28 parts of plasticizer dimethyl phthalate; (2) mixing: mix the above raw materia...

Embodiment 3

[0029]The preparation method of the powder material for 3D printing in this embodiment includes: (1) preparation of raw materials, in parts by weight: 100 parts of polymer raw materials formed by mixing high-density polyethylene and rubber elastic body according to the mass ratio of 2:1 , wherein high-density polyethylene is pretreated waste high-density polyethylene, and the pretreatment of waste high-density polyethylene is: use an ultra-fine powder crusher to crush the cleaned waste HDPE plastic to obtain a particle size of 300 microns Granules, 20 parts of calcium lignosulfonate, 20 parts of graded glass fiber formed by the combination of short fiber glass fiber and hollow glass microspheres according to the mass ratio of 1.8:1, wherein the length of the short fiber glass fiber is 1.2mm, and the diameter is 0.18 mm, the diameter of hollow glass microspheres is 0.7mm, 1 part of silane coupling agent A151, 25 parts of plasticizer DEHP; (2) Mixing: Mix the above raw materials ...

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PUM

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Abstract

The invention discloses a preparation method of a powder material for 3D printing, which comprises the steps of (1) preparing the following raw materials in parts by weight: 100 parts of polymer raw material, 10-30 parts of calcium lignosulphonate, 10-30 parts of graded glass fibers, 0.8-1.4 parts of a coupling agent and 20-30 parts of a plasticizer; (2) mixing, specifically, mixing the raw materials in a mixing mill for 30-80 minutes; and (3) extruding and granulating, specifically, extruding and granulating the mixture obtained in the step (2) by using a twin-screw extrusion molding machine at the head temperature of 110-130 DEG C and the screw rotating speed of 90-120r / min, and granulating to obtain the powder material for 3D printing. According to the scheme, the combination form of the product is effectively improved, so that the performance of the product is greatly improved, and the service life of the product is greatly prolonged.

Description

technical field [0001] The invention relates to the field of 3D technology, in particular to a method for preparing a powder material for 3D printing. Background technique [0002] Rapid prototyping technology was born in the late 1980s. It is a high-tech manufacturing technology based on material accumulation method. It is considered to be a major achievement in the manufacturing field in recent years. It integrates mechanical engineering, CAD, reverse engineering technology, layered manufacturing technology, numerical control technology, material science, and laser technology, and can automatically, directly, quickly and accurately transform design ideas into prototypes with certain functions or directly manufacture parts , so as to provide a high-efficiency and low-cost realization means for parts prototype production and verification of new design ideas. That is, rapid prototyping technology is to use the data of three-dimensional CAD to accumulate layers of materials i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L21/00C08L97/00C08K13/06C08K9/04C08K7/14C08K7/28
CPCC08L23/06C08L2207/20C08L2207/062C08L2205/03C08K2201/003C08K2201/004C08L21/00C08L97/005C08K13/06C08K9/08C08K7/14C08K7/28Y02P10/25
Inventor 张惠栋张明辉
Owner 道谷江苏新材料科技有限公司
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