阅读说明：本技术 一种医疗美容义齿材料及其制备方法 (Medical cosmetic denture material and preparation method thereof ) 是由 陈坚 刘玉德 于 2020-07-31 设计创作，主要内容包括：本发明公开了一种医疗美容义齿材料,涉及义齿材料制备相关技术领域,包括以下成分：氧化锆：20份、氧化钛：7份、氧化铬：7份、氟化石墨烯：12份、蒸馏水：25份、邻苯二甲酸二辛酯：4份、硬脂酸：2份、聚甲基丙烯酸甲酯树脂：15、聚乳酸树脂：5份、丙烯酸改性树脂：5份、酚醛树脂：5份、纳米碳晶：18份、无水乙醇：15份、分散剂：3份。本发明还公开了一种医疗美容义齿材料的制备方法,包括以下步骤：A：制备元素粉、B：制备树脂混合物、C：制备初料、D：制备浸涂溶液、E：制备义齿、F：浸涂处理、G：义齿表面处理、H：烧结成型。本发明极大地提高了义齿的机械强度,提高了义齿的色泽,提高了义齿的耐磨性和抗老化性。(The invention discloses a medical cosmetic denture material, which relates to the related technical field of denture material preparation and comprises the following components: zirconium oxide: 20 parts of titanium oxide: 7 parts of chromium oxide: 7 parts of fluorinated graphene: 12 parts of distilled water: 25 parts of dioctyl phthalate: 4 parts and stearic acid: 2 parts of polymethyl methacrylate resin: 15. polylactic acid resin: 5 parts of acrylic modified resin: 5 parts of phenolic resin: 5 parts of nano carbon crystal: 18 parts of absolute ethyl alcohol: 15 parts of dispersant: and 3 parts. The invention also discloses a preparation method of the medical cosmetic denture material, which comprises the following steps: a: preparing element powder and B: preparation of a resin mixture, C: preparing a primary material and D: preparation of dip coating solution, E: preparing a denture and F: dip coating treatment, G: denture surface treatment, H: and (5) sintering and forming. The invention greatly improves the mechanical strength of the false tooth, improves the color of the false tooth and improves the wear resistance and the aging resistance of the false tooth.)

1. The medical cosmetic denture material is characterized by comprising the following components (by mass percent): zirconium oxide: 10-30 parts of titanium oxide: 6-8 parts of chromium oxide: 6-8 parts of fluorinated graphene: 10-14 parts of distilled water: 20-30 parts of dioctyl phthalate: 3-5 parts of stearic acid: 1-3 parts of polymethyl methacrylate resin: 10-20 parts of polylactic resin: 4-6 parts of acrylic modified resin: 4-6 parts of phenolic resin: 4-6 parts of nano carbon crystal: 16-20 parts of absolute ethyl alcohol: 10-18 parts of a dispersant: 2-5 parts.

2. The medical cosmetic denture material according to claim 1, comprising the following components (in mass percent): zirconium oxide: 10 parts of titanium oxide: 8 parts of chromium oxide: 6 parts of fluorinated graphene: 14 parts of distilled water: 20 parts of dioctyl phthalate: 5 parts and stearic acid: 1 part of polymethyl methacrylate resin: 20 parts of polylactic resin: 4 parts of acrylic modified resin: 6 parts of phenolic resin: 4 parts of nano carbon crystal: 20 parts of absolute ethyl alcohol: 10 parts of a dispersant: 5 parts of the raw materials.

3. The medical cosmetic denture material according to claim 1, comprising the following components (in mass percent): zirconium oxide: 20 parts of titanium oxide: 7 parts of chromium oxide: 7 parts of fluorinated graphene: 12 parts of distilled water: 25 parts of dioctyl phthalate: 4 parts and stearic acid: 2 parts of polymethyl methacrylate resin: 15. polylactic acid resin: 5 parts of acrylic modified resin: 5 parts of phenolic resin: 5 parts of nano carbon crystal: 18 parts of absolute ethyl alcohol: 15 parts of dispersant: and 3 parts.

4. The medical cosmetic denture material according to claim 1, comprising the following components (in mass percent): zirconium oxide: 30 parts of titanium oxide: 6 parts of chromium oxide: 8 parts of fluorinated graphene: 10 parts of distilled water: 30 parts, dioctyl phthalate: 3 parts of stearic acid: 3 parts of polymethyl methacrylate resin: 10 parts of polylactic resin: 6 parts of acrylic modified resin: 4 parts of phenolic resin: 6 parts of nano carbon crystal: 16 parts of absolute ethyl alcohol: 18 parts of dispersant: and 2 parts.

5. The medical cosmetic denture material according to claim 1, wherein:

the dispersing agent is composed of one or more of polyacrylic acid, polyethyleneimine, sodium dodecyl benzene sulfonate and sodium dodecyl sulfate.

6. The preparation method of the medical cosmetic denture material is characterized by comprising the following steps:

a: preparing element powder; weighing zirconium oxide, titanium oxide, chromium oxide and fluorinated graphene according to a proper proportion by weight, and then putting the zirconium oxide, the titanium oxide, the chromium oxide and the fluorinated graphene into a ball mill for grinding for 2-3 hours to obtain mixed element powder with a required granularity;

b: preparing a resin mixture; adding proper parts of polymethyl methacrylate resin, polylactic acid resin, acrylic acid modified resin and phenolic resin into a stirring tank in sequence for full stirring, then adding distilled water for full stirring, and continuously adding dioctyl phthalate and stearic acid into the mixture for full stirring to obtain a binder;

c: preparing a primary material: pouring the mixed element powder into the binder, fully stirring for 30-40min, then adding the dispersant, and fully stirring for 10-20 min to obtain a false tooth initial material;

d: preparing a dip coating solution: adding the nano carbon crystal into absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a nano carbon crystal dip-coating solution;

e: preparing a denture: putting the false tooth initial material into an organic plastic mold, and putting the organic plastic mold into a static pressure machine to be pressed into a blank body to obtain an initial blank;

f: dip coating treatment: immersing the primary blank into the nano carbon crystal dip-coating solution, standing for 2-4 min, taking out, drying at 83-92 ℃ for 1-2h, immersing the primary blank into the nano carbon crystal dip-coating solution again, standing for 5-8 min, taking out, drying at 86-95 ℃ for 1-2h, performing heat treatment at 500-650 ℃ for 2-3h, and cooling;

g: false tooth surface treatment: taking out the false tooth after dip-coating, and carrying out detail treatment on the surface of the false tooth;

h: sintering and forming: sintering in vacuum environment with vacuum degree of 1 × 10^-4Pa, the sintering temperature is 1300-1600 ℃, and the heat preservation time is 160-200 min.

7. The method for preparing a medical cosmetic denture material according to claim 6, wherein:

the time for fully stirring for three times in the step B is respectively as follows: 30-40min, 50-60 min and 30-50 min.

8. The method for preparing a medical cosmetic denture material according to claim 6, wherein:

the ultrasonic dispersion conditions in the step D are as follows: the ultrasonic dispersion time is 25min, the ultrasonic power is 100W, and the ultrasonic frequency is 60 KHz.

9. The method for preparing a medical cosmetic denture material according to claim 6, wherein:

and E, forming pressure of the static pressure machine in the step E is 180-220 MPa, and pressure maintaining time is 6-8 min.

10. The method for preparing a medical cosmetic denture material according to claim 6, wherein:

and F, coating the first time in the step F, wherein the thickness of the coating is 30-50 mu m, and the thickness of the coating of the second time is 50-80 mu m.

Technical Field

The invention relates to the technical field related to preparation of denture materials, in particular to a medical cosmetic denture material and a preparation method thereof.

Background

The medical cosmetology refers to a cosmetic mode of repairing and remodeling the human appearance and the forms of each part of the human body by applying medicines, operations, medical instruments and other medical technical methods with traumatism or irreversibility. The medical cosmetic surgery requires the patient to be provided with a denture. The false tooth is a general term of a prosthesis manufactured after partial or all of upper and lower teeth are lost in medicine, and is classified into removable false teeth and fixed false teeth, wherein the fixed false tooth is commonly called 'fixed false tooth' which cannot be taken by a patient, while the removable false tooth is commonly called 'movable false tooth' which can be conveniently taken by the patient, and the movable false tooth is commonly called 'removable partial false tooth'.

Currently, modification is often done by adding metal reinforcements, fibers or inorganic nanoparticles. The addition of metal can affect the color of the false tooth and reduce the practicability of the false tooth; the mechanical property of the fiber can be enhanced, but the manufacturing process requirement is higher, and the industrial production is difficult; the inorganic nano particles are easy to agglomerate, so that the advantages of the nano material cannot be well expressed, and the color and luster of the nano material are influenced.

In the Chinese invention patent application number: CN201810745797.6 discloses a method for preparing a titanium denture material coated with a nano carbon crystal film on the surface, which comprises the following steps: 1. pretreating a titanium sheet; 2. primary coating: putting the pretreated titanium sheet obtained in the step 1 into acetone, ultrasonically cleaning for 30-40min, drying, and immersing into TiO₂Dip-coating the solution, drying for 1-2h, heat-treating for 2-3h, and cooling. The false tooth material prepared by the preparation method has poor mechanical strength, yellowing and color and luster degree, and the false tooth processed by the titanium sheet has poor wear resistance and aging resistance, needs a large amount of equipment and complex operation steps, and has high requirements on the operation of the industrial process, equipment and production cost.

Therefore, there is a need for a medical cosmetic denture material and a method for preparing the same to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a medical cosmetic denture material and a preparation method thereof, and solves the problems of poor mechanical strength, poor color and luster degree, poor wear resistance and aging resistance, high requirements on industrial and technological operation, high requirements on equipment and high production cost of the conventional denture.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

a medical cosmetic denture material comprises the following components (by mass percent): zirconium oxide: 10-30 parts of titanium oxide: 6-8 parts of chromium oxide: 6-8 parts of fluorinated graphene: 10-14 parts of distilled water: 20-30 parts of dioctyl phthalate: 3-5 parts of stearic acid: 1-3 parts of polymethyl methacrylate resin: 10-20 parts of polylactic resin: 4-6 parts of acrylic modified resin: 4-6 parts of phenolic resin: 4-6 parts of nano carbon crystal: 16-20 parts of absolute ethyl alcohol: 10-18 parts of a dispersant: 2-5 parts.

Optionally, the composition comprises the following components (in percentage by mass): zirconium oxide: 10 parts of titanium oxide: 8 parts of chromium oxide: 6 parts of fluorinated graphene: 14 parts of distilled water: 20 parts of dioctyl phthalate: 5 parts and stearic acid: 1 part of polymethyl methacrylate resin: 20 parts of polylactic resin: 4 parts of acrylic modified resin: 6 parts of phenolic resin: 4 parts of nano carbon crystal: 20 parts of absolute ethyl alcohol: 10 parts of a dispersant: 5 parts of the raw materials.

Optionally, the composition comprises the following components (in percentage by mass): zirconium oxide: 20 parts of titanium oxide: 7 parts of chromium oxide: 7 parts of fluorinated graphene: 12 parts of distilled water: 25 parts of dioctyl phthalate: 4 parts and stearic acid: 2 parts of polymethyl methacrylate resin: 15. polylactic acid resin: 5 parts of acrylic modified resin: 5 parts of phenolic resin: 5 parts of nano carbon crystal: 18 parts of absolute ethyl alcohol: 15 parts of dispersant: and 3 parts.

Optionally, the composition comprises the following components (in percentage by mass): zirconium oxide: 30 parts of titanium oxide: 6 parts of chromium oxide: 8 parts of fluorinated graphene: 10 parts of distilled water: 30 parts, dioctyl phthalate: 3 parts of stearic acid: 3 parts of polymethyl methacrylate resin: 10 parts of polylactic resin: 6 parts of acrylic modified resin: 4 parts of phenolic resin: 6 parts of nano carbon crystal: 16 parts of absolute ethyl alcohol: 18 parts of dispersant: and 2 parts.

Optionally, the dispersant is composed of one or more of polyacrylic acid, polyethyleneimine, sodium dodecylbenzenesulfonate and sodium dodecylsulfate.

A preparation method of a medical cosmetic denture material comprises the following steps:

a: preparing element powder; weighing zirconium oxide, titanium oxide, chromium oxide and fluorinated graphene according to a proper proportion by weight, and then putting the zirconium oxide, the titanium oxide, the chromium oxide and the fluorinated graphene into a ball mill for grinding for 2-3 hours to obtain mixed element powder with a required granularity;

b: preparing a resin mixture; adding proper parts of polymethyl methacrylate resin, polylactic acid resin, acrylic acid modified resin and phenolic resin into a stirring tank in sequence for full stirring, then adding distilled water for full stirring, and continuously adding dioctyl phthalate and stearic acid into the mixture for full stirring to obtain a binder;

c: preparing a primary material: pouring the mixed element powder into the binder, fully stirring for 30-40min, then adding the dispersant, and fully stirring for 10-20 min to obtain a false tooth initial material;

d: preparing a dip coating solution: adding the nano carbon crystal into absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a nano carbon crystal dip-coating solution;

e: preparing a denture: putting the false tooth initial material into an organic plastic mold, and putting the organic plastic mold into a static pressure machine to be pressed into a blank body to obtain an initial blank;

f: dip coating treatment: immersing the primary blank into the nano carbon crystal dip-coating solution, standing for 2-4 min, taking out, drying at 83-92 ℃ for 1-2h, immersing the primary blank into the nano carbon crystal dip-coating solution again, standing for 5-8 min, taking out, drying at 86-95 ℃ for 1-2h, performing heat treatment at 500-650 ℃ for 2-3h, and cooling;

g: false tooth surface treatment: taking out the false tooth after dip-coating, and carrying out detail treatment on the surface of the false tooth;

h: sintering and forming: sintering in vacuum environment with vacuum degree of 1 × 10^-4Pa, the sintering temperature is 1300-1600 ℃, and the heat preservation time is 160-200 min.

Optionally, the time for fully stirring three times in the step B is respectively as follows: 30-40min, 50-60 min and 30-50 min.

Optionally, the ultrasonic dispersion conditions in step D are: the ultrasonic dispersion time is 25min, the ultrasonic power is 100W, and the ultrasonic frequency is 60 KHz.

Optionally, in the step E, the forming pressure of the static pressure machine is 180 to 220MPa, and the pressure maintaining time is 6 to 8 min.

Optionally, the thickness of the coating applied for the first time in the step F is 30-50 μm, and the thickness of the coating applied for the second time is 50-80 μm.

(III) advantageous effects

The invention provides a medical cosmetic denture material and a preparation method thereof, and the material has the following beneficial effects:

(1) according to the artificial tooth, the main components of the artificial tooth are formed by the zirconium oxide, the titanium oxide and the chromium oxide, so that the mechanical strength of the artificial tooth is greatly improved, the mechanical properties of the hardness, the impact strength and the compression strength of the artificial tooth are further improved, the artificial tooth also has very high material strength and corrosion resistance, and under the matching action of the fluorinated graphene, the fluorinated graphene is white, the color of the artificial tooth is improved, and the color of the artificial tooth is more attractive.

(2) The artificial tooth adopts the polymethyl methacrylate resin, the polylactic acid resin, the acrylic acid modified resin and the phenolic resin as matching materials, and greatly improves the wear resistance and the aging resistance of the artificial tooth by utilizing the characteristics of resin combination.

(3) According to the invention, the two layers of nano carbon crystal dip-coating solutions are coated outside the denture to coat the denture, so that the material has no stimulation, has good biocompatibility, can effectively reduce the bacterial adhesion performance of the metal material in the denture, and improves the denture quality and service life.

(4) The processing technology of the false tooth has low operation requirement and low equipment requirement, greatly reduces the production cost, is convenient for mass production, and in the processing technology, the processed material is not only environment-friendly, but also can be recycled, effectively reduces the material consumption, and has the advantages of energy conservation, environmental protection and cost reduction.

Drawings

Fig. 1 is a process flow diagram for preparing a denture material according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the present invention provides a technical solution: