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Polyethylene/wood powder composite wire for fused deposition modeling, and preparation method thereof

A technology of fused deposition molding and polyethylene, which is applied in the field of 3D printing technology and plastic processing, to achieve the effects of reducing costs, improving molding accuracy, and being easy to operate

Inactive Publication Date: 2016-02-03
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a polyethylene / wood powder composite wire material for fused deposition molding to overcome the defects of the existing polyethylene materials for fused deposition molding. The addition of wood powder can inhibit the crystallization of polyethylene and strengthen the polyethylene material. Toughness, thereby reducing the shrinkage deformation of FDM parts and improving the forming accuracy of parts

Method used

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  • Polyethylene/wood powder composite wire for fused deposition modeling, and preparation method thereof
  • Polyethylene/wood powder composite wire for fused deposition modeling, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] The polyethylene / wood flour composite wire material for fused deposition molding in this embodiment is made of the following raw materials: polyethylene (high-density polyethylene) 80g, wood flour (straw) 10g, maleic anhydride grafted Polyethylene 10g, lubricant (polyethylene glycol) 0.9g, plasticizer (dioctyl phthalate) 0.9g, stabilizer (antioxidant 1010 and tetrakis[β-(3,5-di-tert-butyl base-4-hydroxyphenyl)propionic acid]pentaerythritol ester) 0.2g.

[0034] The preparation method of the polyethylene / wood flour composite wire material for fused deposition molding of the present embodiment comprises the following steps:

[0035] (1) Processing of raw materials: Prepare each raw material, and the wood powder is processed into powder by a milling machine. The water remaining in polyethylene and wood flour evaporates, and the moisture content of polyethylene and wood flour is controlled below 10%;

[0036] (2) Mixing of reagents and raw materials: first put polyethylen...

Embodiment 2

[0040] The polyethylene / wood powder composite wire material for fused deposition molding in this embodiment is made of the following raw materials: polyethylene (high-density polyethylene and linear low-density polyethylene) 90g, wood powder (straw and rice bran) 15g, maleic anhydride grafted polyethylene 8g, lubricant (polyolefin and polyethylene glycol) 1.2g, plasticizer (dioctyl phthalate and synthetic vegetable ester) 1.5g, stabilizer (antioxidant mixture of agent 168 and tris[2.4-di-tert-butylphenyl]phosphite) 0.5g.

[0041] The preparation method of the polyethylene / wood powder composite wire material for fused deposition molding of the present embodiment is the same as that of embodiment 1.

Embodiment 3

[0043] The polyethylene / wood flour composite wire material for fused deposition molding in this embodiment is made of the following raw materials: polyethylene (linear low-density polyethylene) 70g, wood flour (straw and sawdust) 20g, maleic anhydride Grafted polyethylene 10g, lubricant (polyolefin and stearamide lubricant) 2g, plasticizer (dioctyl phthalate and glycerin) 2g, stabilizer (antioxidant 1010 and four [β- (3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester mixture) 0.2g.

[0044] The preparation method of the polyethylene / wood flour composite wire material for fused deposition molding in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention discloses a polyethylene / wood powder composite wire for fused deposition modeling, and a preparation method thereof. Raw materials and assistants used by the polyethylene / wood powder composite wire for fused deposition modeling comprise 70-90 parts of polyethylene, 10-30 parts of wood powder, 5-10 parts of a compatilizer, 0.9-3 parts of a lubricant, 0.9-3 parts of a plasticizer and 0.1-0.5 parts of a stabilizer. Addition of the wood powder to the polyethylene / wood powder composite wire inhibits crystallization of polyethylene, reduces shrinkage deformation of a fused deposition modeled product, and improves the modeling precision of the product. The fused deposition modeled product has the advantages of good toughness, improved mechanical performances and strong practicality. The invention also provides the making method of the polyethylene / wood powder composite wire. The method has the advantages of easy operation, low technological conditions and production device requirements, realization of large-scale popularization and production, wide market prospect and extremely good market benefits.

Description

technical field [0001] The invention relates to a polyethylene / wood powder composite wire material for fused deposition molding and a preparation method thereof, and relates to the fields of 3D printing technology and plastic processing. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, was born in the late 1980s. It is based on digital model files, using powdered metal or plastic and other bondable materials to construct objects by layer-by-layer printing. technology. 3D printing technology involves many aspects such as information technology, material science, precision machinery, etc. It is becoming more and more competitive in today's manufacturing industry, so it is called "manufacturing technology with industrial revolution significance". 3D printing technology includes fused deposition modeling, selective laser sintering, stereolithography and other technologies, which greatly expands the method of material forming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L97/02C08L51/06C08L71/02C08L23/00C08K5/12C08K5/134C08K5/526C08K5/20C08K5/053B33Y70/00
CPCC08L23/06C08K2201/014C08L23/0815C08L2205/025C08L2205/035C08L2205/16C08L2207/062C08L2207/066
Inventor 于翔王延伟徐茜王娜丁宁魏媛辛长征
Owner HENAN INST OF ENG
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