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A polyetheretherketone 3D printing material and 3D printing molding method thereof

A 3D printing and polyether ether ketone technology, applied in the field of 3D printing, can solve the problems of poor uniformity of 3D printing materials and difficulty in enhancing the effect, so as to solve the stacking of printing materials, facilitate large-scale mass production, and improve the coefficient of friction Effect

Active Publication Date: 2020-03-20
HANGZHOU POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent reduces the viscosity of polyether ether ketone material, but the melting point of glass fiber is 680°C, and the material obtained when co-extruded with polyetheretherketone in the temperature range of 350°C to 380°C has poor uniformity as a 3D printing material and is difficult to produce. to enhance

Method used

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  • A polyetheretherketone 3D printing material and 3D printing molding method thereof
  • A polyetheretherketone 3D printing material and 3D printing molding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A polyetheretherketone 3D printing material

[0033] Recipe: polyetheretherketone 1000g, methylenebisacrylamide 100g, polyetherimide 20g

[0034] The preparation method comprises the following steps:

[0035] Step 1, dissolving 1000g of polyetheretherketone in 1000mL of concentrated sulfuric acid to obtain sulfonated polyetheretherketone;

[0036] Step II, dissolving 100 g of methylenebisacrylamide in water to obtain a methylenebisacrylamide solution with a concentration of 0.1 mol / L;

[0037] Step III, mixing the sulfonated polyether ether ketone obtained in step I with the methylenebisacrylamide solution obtained in step II to obtain PEEK-MBA;

[0038] Step IV: Dry the PEEK-MBA obtained in Step III at a temperature of 120°C for 30 minutes, then mix it with 20g of polyetherimide, and extrude it with a twin-screw extruder at a temperature of 380°C. Screw speed is 300rpm, obtains PEEK-MBA-PEI blend;

[0039] Step V, adding the PEEK-MBA-PEI blend obtained in Step IV i...

Embodiment 2

[0043] A polyetheretherketone 3D printing material

[0044] Recipe: 1000g polyetheretherketone, 1000g methylenebisacrylamide, 100g polyetherimide

[0045] The preparation method comprises the following steps:

[0046] Step 1, dissolving 1000g of polyetheretherketone in 3000mL of concentrated sulfuric acid to obtain sulfonated polyetheretherketone;

[0047] Step II, dissolving 1000g methylenebisacrylamide in water to obtain a methylenebisacrylamide solution with a concentration of 2.0mol / L;

[0048] Step III, mixing the sulfonated polyether ether ketone obtained in step I with the methylenebisacrylamide solution obtained in step II to obtain PEEK-MBA;

[0049] Step IV: Dry the PEEK-MBA obtained in Step III at a temperature of 130°C for 90 minutes, then mix it with 100g of polyetherimide, and extrude it with a twin-screw extruder at a temperature of 390°C. Screw speed is 300rpm, obtains PEEK-MBA-PEI blend;

[0050] Step V, adding the PEEK-MBA-PEI blend obtained in Step IV in...

Embodiment 3

[0054] A polyetheretherketone 3D printing material

[0055] Recipe: 1000g polyetheretherketone, 550g methylenebisacrylamide, 60g polyetherimide

[0056] The preparation method comprises the following steps:

[0057] Step 1, dissolving 1000g of polyetheretherketone in 2000mL of concentrated sulfuric acid to obtain sulfonated polyetheretherketone;

[0058] Step II, dissolving 550g methylenebisacrylamide in water to obtain a methylenebisacrylamide solution with a concentration of 1.1mol / L;

[0059] Step III, mixing the sulfonated polyether ether ketone obtained in step I with the methylenebisacrylamide solution obtained in step II to obtain PEEK-MBA;

[0060] Step IV: Dry the PEEK-MBA obtained in Step III at a temperature of 125°C for 60 minutes, then mix it with 60g of polyetherimide, and extrude it with a twin-screw extruder at a temperature of 385°C. Screw speed is 300rpm, obtains PEEK-MBA-PEI blend;

[0061] Step V, adding the PEEK-MBA-PEI blend obtained in Step IV into a...

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Abstract

The invention discloses a polyether-ether-ketone (PEEK) 3D printing material and a 3D printing forming method thereof. The method comprises the following steps: dissolving PEEK in concentrated sulfuric acid to obtain sulfonated PEEK; dissolving methylene-bisacrylamide (MBA) in water to obtain an MBA solution; mixing sulfonated PEEK with the MBA solution to obtain PEEK-MBA; drying PEEK-MBA, mixingdried PEEK-MBA with PEI (polyetherimide), and performing blending extrusion with a twin-screw extruder to obtain a PEEK-MBA-PEI blend; adding the PEEK-MBA-PEI blend to a conical counter-rotating twin-screw extruder for extrusion forming to obtain a PEEK-MBA-PEI wire, namely, the PEEK 3D printing material. The PEEK material is modified, and the modified PEEK material can be applied as the 3D printing material. The 3D printing forming method of the 3D printing material is also provided.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a polyether ether ketone 3D printing material and a 3D printing forming method thereof. Background technique [0002] Polyetheretherketone (PEEK) is a semi-crystalline aromatic thermoplastic polymer material with a melting point of 334°C, a softening point of 168°C, and a tensile strength of 132-148MPa. It can be used as a high-temperature resistant structural material and electrical insulation material . Polyetheretherketone PEEK is rigid and flexible, has excellent sliding properties, is only soluble in concentrated sulfuric acid, has high chemical stability, and has good self-extinguishing properties. [0003] PEEK is the same as many organic materials. During pyrolysis, PEEK mainly produces carbon dioxide and carbon monoxide. Using the British aircraft test standard BSS7239, it can detect the emission of extremely low concentrations of toxic gases. This detection process needs to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/08C08L79/08C08F283/00C08F222/38B29C64/112B33Y10/00B33Y70/00
CPCB29C64/112B33Y10/00B33Y70/00C08F283/002C08L51/08C08L79/08C08F222/385
Inventor 谭小红
Owner HANGZHOU POLYTECHNIC
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