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Imitation-metal polyester wire used for 3D printing and preparation method of imitation-metal polyester wire

A 3D printing and polyester filament technology, applied in the field of 3D printing materials, can solve the problem of uneven dispersion of high-weight metal pigments, and achieve the effects of good compatibility, simple preparation method and excellent preparation process

Inactive Publication Date: 2019-04-12
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of uneven dispersion of high-volume metal pigments in the current 3D printing process, the present invention proposes a polyester filament for metal-like 3D printing and a preparation method, thereby improving the dispersibility of metal powder in the polyester filament and ensuring The quality of imitation metal 3D printing products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) First mix the sizing agent and ethanol evenly to obtain a mixed solution, then place the metal powder in a tumbling mixing device, and spray the mixed solution evenly on the metal surface during the continuous tumbling process of the metal powder, and fully contact and mix to obtain a mixed slurry body; the wetting agent is made by mixing Tween 80, isopropyl tris(dioctyl pyrophosphate acyloxy) titanate, and stearic acid in a mass ratio of 1:0.9:0.5; the metal powder is silver powder; In the preparation of the mixed slurry, the mass ratio of metal powder, ethanol, and sizing agent is 100:88:14;

[0031] (2) Disperse and mix the obtained mixed slurry and polyester oligomers evenly, and then spray them out through a spray reactor at high pressure, and the oligomers in the droplets are polymerized and connected and granulated to obtain polyester-coated metal powder; polyester The oligomer is a polyethylene terephthalate oligomer; in the preparation of polyester-coated m...

Embodiment 2

[0036](1) First mix the sizing agent and ethanol evenly to obtain a mixed solution, then place the metal powder in a tumbling mixing device, and spray the mixed solution evenly on the metal surface during the continuous tumbling process of the metal powder, and fully contact and mix to obtain a mixed slurry body; the wetting agent is made by mixing Tween 80, isopropyl triisostearyl titanate, and stearic acid according to the mass ratio of 1:0.8:0.2; the metal powder is copper powder; during the preparation of the mixed slurry, The mass ratio of metal powder, ethanol, and sizing agent is 100:80:10;

[0037] (2) Disperse and mix the obtained mixed slurry and polyester oligomers evenly, and then spray them out through a spray reactor at high pressure, and the oligomers in the droplets are polymerized and connected and granulated to obtain polyester-coated metal powder; polyester The oligomer is polybutylene terephthalate oligomer; in the preparation of polyester-coated metal powd...

Embodiment 3

[0041] (1) First mix the sizing agent and ethanol evenly to obtain a mixed solution, then place the metal powder in a tumbling mixing device, and spray the mixed solution evenly on the metal surface during the continuous tumbling process of the metal powder, and fully contact and mix to obtain a mixed slurry body; the wetting agent is made by mixing Tween 80, monoalkoxy unsaturated fatty acid titanate, and stearic acid according to the mass ratio of 1:1.2:0.6; the metal powder is aluminum powder; during the preparation of the mixed slurry, The mass ratio of metal powder, ethanol, and sizing agent is 100: 100:20;

[0042] (2) Disperse and mix the obtained mixed slurry and polyester oligomers evenly, and then spray them out through a spray reactor at high pressure, and the oligomers in the droplets are polymerized and connected and granulated to obtain polyester-coated metal powder; polyester The oligomer is a polyarylate oligomer; in the preparation of the polyester-coated meta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention provides an imitation-metal polyester wire used for 3D printing and a preparation method of the imitation-metal polyester wire. The polyester wire is prepared by the steps of firstly mixing an impregnating agent and ethanol, spraying the mixed solution to the surface of metal powder to form slurry, mixing the slurry and a polyester oligomer, performing high-pressure spraying to obtain polyester-coated metal powder, finally uniformly mixing the polyester-coated metal powder, thermoplastic cellulose, an aliphatic copolyester and toughening fibers, and performing continuous melt extrusion. The 3D printing wire provided by the invention has the advantages of a high filling amount and uniformity, when the wire is used for the 3D printing, the polyester coating the surface layer has good compatibility with the wire substrate, so that the problem that dispersion of high-quantity metallic pigment existing in a current printing process is not uniform is solved; and meanwhile the preparation method is simple, and the imitation metal effect of the printed products is greatly improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a polyester filament for imitating metal 3D printing and a preparation method thereof. Background technique [0002] After nearly 30 years of development, 3D printing technology is rapidly entering our production and life in recent years, from popular science products such as portrait printing and toy manufacturing in the past few years to direct printing of functional products. Polyhydroxyalkanoate (PHA) filaments are the main consumables for fused deposition (FDM) 3D printing. As society tends to diversify 3D printing products, the main consumables for 3D printing are also developing towards diversification and functionality. , For example, in addition to PLA, the biodegradability and medical properties of PHA also make it have a place in the 3D printing market. [0003] At present, there is no PHA composite consumable for 3D printing that can be polished and has...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08L1/28C08L1/12C08L1/10C08K7/14C08K9/10C08K3/08B33Y70/00B33Y80/00
CPCC08L67/04B33Y70/00B33Y80/00C08L67/02C08L2205/06C08L1/286C08K7/14C08K9/10C08K3/08C08L1/12C08K7/06
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD