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Titanium dioxide-based white PEEK composite material for oral cavity, and preparation method thereof

A technology of titanium dioxide and composite materials, which is applied in the fields of medical science, tissue regeneration, and prostheses, can solve the problems of structural permeability and wear resistance, insufficient color whiteness, and complicated preparation methods, etc., to achieve good appearance , good interface interaction, simple preparation method

Inactive Publication Date: 2017-07-21
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PEEK polyether ether ketone can be used to make dental implants that are repeatedly used and require high sterilization and disinfection. However, the color of pure PEEK material is grayish and cannot be dyed, which limits the application of PEEK material, because it is used in the production of crowns and teeth. Bridges and other aspects need to be made of white materials to obtain a more beautiful effect
[0004] Chinese patent CN 106308959A discloses bioactive glass-ceramic fiber / PEEK resin composite artificial teeth and its preparation method. The calcium hydroxyphosphate crystal glass-ceramic fragments are prepared into fibrous shapes, and the fibers are mixed with PEEK resin powder after being treated with silane, and melted and injected to form The product is treated with sulfuric acid and acetone to obtain the product. The surface of the product has exposed biologically active glass ceramic fiber heads. It has good mechanical properties and good biocompatibility, but the preparation method is relatively complicated, the color is not white enough, and the structure is transparent. The performance and wear resistance also need to be improved
Chinese patent CN 106397804A discloses a treatment method for polyether ether ketone resin to obtain different porous structure surfaces. The surface treatment of PEEK material is carried out by wet chemical method, firstly immersed in sulfuric acid aqueous solution, and then immersed in water, ethanol, dimethyl methylene Sulfone, ethylene glycol, water / ethanol mixed solution, water / dimethyl sulfoxide mixed solution for cleaning, the PEEK material is swelled first and then cleaned to form a variety of porous structures on the surface of the material. The preparation method is simple, but the operability is poor. Moreover, only the surface of the PEEK material is porous, and the internal material structure has little effect
[0005] It can be seen from the above prior art that the comprehensive performance of the composite material can be improved by combining the PEEK material with other materials, and the porous structure of the PEEK material can also be endowed by external finishing. It is very necessary to study a white porous PEEK material with simple operation and low cost.

Method used

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  • Titanium dioxide-based white PEEK composite material for oral cavity, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Prepare the PEEK material into granules or powder with a particle size of less than 1 cm, spread it out, with a thickness of 2 cm, put it in an air circulation furnace, and place it in an environment of 100 ° C for 1 hour;

[0030] (2) Add titanium dioxide into absolute ethanol, ultrasonically disperse it, dropwise add silane coupling agent KH570 and concentrated ammonia water in sequence, heat and react at 60°C for 2h under nitrogen atmosphere, wash thoroughly with ethanol and water after the reaction, and bake. After drying, the titanium dioxide was spread out in an air circulation furnace and placed in an environment of 100 °C for 1 h.

[0031] (3) Mixing the PEEK material and the titanium dioxide in a mass ratio of 3:1 to obtain a mixture.

[0032] (4) The mixture is placed in the barrel of the extruder and fully mixed, and the temperature in the barrel is set between 400 ° C. After the temperature of the barrel is set, keep the temperature from fluctuating and ...

Embodiment 2

[0034] (1) Prepare the PEEK material into granules or powder with a particle size of less than 1cm, spread it out, with a thickness of 2.5cm, put it in an air circulation furnace, and place it in an environment of 150 ° C for 2 hours;

[0035] (2) Add titanium dioxide into absolute ethanol, ultrasonically disperse it, dropwise add silane coupling agent KH570 and concentrated ammonia water in sequence, heat and react at 60°C for 2h under nitrogen atmosphere, wash thoroughly with ethanol and water after the reaction, and bake. Dry, and then spread the titanium dioxide in an air circulation furnace and place it in an environment of 200 ° C for 1-4 hours;

[0036] (3) mixing the PEEK material and titanium dioxide according to a mass ratio of 4:1, and then adding a sodium chloride pore-forming agent with a mass fraction of 10% to obtain a mixture.

[0037] (4) The mixture is placed in the barrel of the extruder and fully mixed, and the temperature in the barrel is set between 400 °...

Embodiment 3

[0039] (1) Prepare the PEEK material into granules or powder with a particle size of less than 1cm, spread it out with a thickness of 3cm, put it in an air circulation furnace, and place it in an environment of 160 ° C for 1-4 hours;

[0040] (2) Add titanium dioxide into absolute ethanol, ultrasonically disperse it, dropwise add silane coupling agent KH570 and concentrated ammonia water in sequence, heat and react at 60°C for 2h under nitrogen atmosphere, wash thoroughly with ethanol and water after the reaction, and bake. Dry, and then spread the titanium dioxide in an air circulation furnace, and place it in an environment of 150 ° C for 2.5 hours;

[0041] (3) mixing the PEEK material and the titanium dioxide in a mass ratio of 5:1, and then adding a sodium chloride pore-forming agent with a mass fraction of 15% to obtain a mixture.

[0042](4) The mixture is placed in the barrel of the extruder and fully mixed, and the temperature in the barrel is set between 450 ° C. Aft...

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Abstract

The invention provides a titanium dioxide-based white PEEK composite material for the oral cavity, and a preparation method thereof. The titanium dioxide-based white PEEK composite material for the oral cavity is of a white porous structure or closed structure. The preparation method comprises the following concrete steps: preparing particles or powder from a PEEK material, spreading the particles or powder in an air circulation furnace and carrying out standing in an environment with a temperature of 100 to 200 DEG C for 1 to 4 h; spreading titanium dioxide in the air circulation furnace and carrying out standing in an environment with a temperature of 100 to 200 DEG C for 1 to 4 h; mixing the PEEK material and titanium dioxide according to a mass ratio of 3-5: 1 so as to obtain a mixture; and placing the mixture in the charging barrel of an extruder for sufficient mixing, setting the temperature of the charging barrel to be 400 to 500 DEG C and then carrying out extrusion so as to obtain the composite material. The composite material for the oral cavity is simple to prepare, has a white color, light weight, no toxicity, wear resistance, corrosion resistance, high mechanical strength and good biocompatibility and can be applied as a dental implant for dental surgery.

Description

technical field [0001] The invention belongs to the technical field of PEEK materials, in particular to a white PEEK oral composite material based on titanium dioxide and a preparation method thereof. Background technique [0002] PEEK polyetheretherketone is a kind of high-performance special engineering plastics. It is an aromatic crystalline thermoplastic polymer composed of repeating units of polyaryletherketone. It has high heat resistance, radiation resistance, chemical resistance and high impact strength. , good wear resistance and fatigue resistance, flame retardant, excellent electrical properties and other special, in aerospace, electronic appliances, medical, energy, machinery, coatings and other fields have a wide range of applications. [0003] In the medical field, a dental implant is a support device that is surgically implanted into the upper and lower jaws of the edentulous part of the human body to repair dentures. PEEK polyetheretherketone can be used to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/56A61L27/44
CPCA61L27/56A61L27/446A61L2430/12
Inventor 李风浪
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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