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A composite resin 3D printing wire and its preparation method

A 3D printing and resin technology, applied in the field of 3D printing materials, can solve the problems of high cost, poor radiation performance, poor heat resistance, etc., and achieve low cost, large unnotched impact strength, good wear resistance and resistance. solvent effect

Active Publication Date: 2021-08-17
宏威高新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the purposes of the present invention is to propose a composite resin 3D printing wire, which solves the problems of poor heat resistance, poor radiation performance and high cost of 3D printing wire in the prior art

Method used

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  • A composite resin 3D printing wire and its preparation method
  • A composite resin 3D printing wire and its preparation method
  • A composite resin 3D printing wire and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The method for preparing composite resin 3D printing wire in this embodiment is used to prepare composite resin 3D printing wire according to any technical solution of this embodiment. Preferably, the preparation method of the present embodiment includes the following steps:

[0041] Step 1: Dry polythioetherimide resin powder with mixed thioether dianhydride structure and polyether ether ketone resin powder with low melt viscosity at 150°C for 4 hours, press polythioetherimide resin and poly The mass percentage ratio of ether ether ketone resin is 20%~50%: 50%~80%, add it into the dry powder mixer and mix it evenly, and then extrude it with a high-temperature twin-screw extruder equipped with a vacuum device, after cooling , air-dried, and pelletized to obtain polythioetherimide / polyetheretherketone mixed resin pellets. The extrusion processing temperature of the high-temperature twin-screw extruder is 350-400 ° C, wherein the polythioetherimide resin and The sum of t...

Embodiment 1

[0045] Preparation of polythioetherimide resin raw materials: select the polythioetherimide molecular structure (molecular structure is shown below) that takes into account heat resistance, mechanical properties and melt processing properties, and follow the method disclosed by the authorized announcement number CN106117557B Synthesize low-cost copolythioetherimide resin, take samples during the reaction and measure the intrinsic viscosity of the polythioetherimide resin with an Ubbelohde viscometer, and control the intrinsic viscosity within the range of 0.38 to 0.45dl / g, Then the solution is diluted with an aprotic polar solvent such as DMAC to a mass percentage of 5-6%, and after filtration, it is precipitated and pulverized in a high-speed wet pulverizer to prepare fine polythioetherimide resin powder.

[0046] Polythioetherimide resin has the following molecular structure:

[0047]

[0048] Among them, the proportion of thioether dianhydride in the molecular structure ...

Embodiment 2

[0053] The preparation of polythioetherimide resin raw materials and polyether ether ketone resin raw materials is the same as that of Example 1, and will not be repeated here.

[0054] Preparation of combined resin 3D printing wire: dry polythioetherimide resin powder and polyetheretherketone resin powder at 150°C for 4 hours, according to the mass percentage of polythioetherimide resin and polyetheretherketone resin The ratio of 40%: 60% is added to the dry powder mixer and mixed evenly, and then extruded by a high-temperature twin-screw extruder with a vacuum device, cooled, air-dried, and pelletized to obtain polythioetherimide / Polyether ether ketone mixed resin pellets, the extruding temperature of high temperature twin-screw extruder is 350-400 ℃.

[0055] After the polythioetherimide / polyether ether ketone mixed resin pellets are dried at 150°C, they are added to a high-temperature 3D printing material extruder and extruded. After one-stage cooling, two-stage cooling,...

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Abstract

The invention discloses a composite resin 3D printing wire and a preparation method thereof, relates to the technical field of 3D printing materials, and solves the problems of poor heat resistance, poor radiation performance and high cost of the 3D printing wire in the prior art. The combined resin 3D printing wire is made of polythioetherimide resin with mixed thioether dianhydride structure and polyetheretherketone resin with low melt viscosity, wherein polythioetherimide resin and poly The mass percentage ratio of the ether ether ketone resin is 20%-50%:50%-80%, and the sum of the mass percentages of the polythioetherimide resin and the polyether ether ketone resin is 100%. Compared with the polythioetherimide 3D printing resin and polyether ether ketone 3D printing resin of the prior art, the combined resin 3D printing wire has a lower cost advantage, and it has greater bending strength at high temperatures, At the same time, it has lower melt viscosity, greater unnotched impact strength, greater elongation at break, better wear resistance and solvent resistance than polythioetherimide resin.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a composite resin 3D printing wire and a preparation method thereof. Background technique [0002] In recent years, 3D printing technology has gradually become a new way to achieve low-cost precision manufacturing in the industrial field, from models to mass customization, from the production of complex parts to the manufacture of large components, 3D printing is used in industrial manufacturing, aerospace, defense and Applications in healthcare are growing. [0003] At present, among all 3D printing materials, plastic still occupies a dominant position, and the sales volume of 3D printing plastic wire accounts for 40% of the total, and it is regarded as the fastest growing material in the next few years. Commonly used 3D printing polymer materials include common engineering plastics such as polyamide, polyester, polycarbonate, polyethylene, polypropylene and ABS. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/16B33Y70/00
CPCB33Y70/00D01F8/16
Inventor 不公告发明人
Owner 宏威高新材料有限公司