CN108162349A - A kind of preparation method of PEEK modified materials suitable for gear division chain wheel - Google Patents
A kind of preparation method of PEEK modified materials suitable for gear division chain wheel Download PDFInfo
- Publication number
- CN108162349A CN108162349A CN201711416821.3A CN201711416821A CN108162349A CN 108162349 A CN108162349 A CN 108162349A CN 201711416821 A CN201711416821 A CN 201711416821A CN 108162349 A CN108162349 A CN 108162349A
- Authority
- CN
- China
- Prior art keywords
- peek
- chain wheel
- toner
- modified materials
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0023—Combinations of extrusion moulding with other shaping operations combined with printing or marking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
- B29K2995/0021—Multi-coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7532—Artificial members, protheses
- B29L2031/7536—Artificial teeth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Preparations (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses gear division product technical fields,Specific field is a kind of preparation method of PEEK modified materials suitable for gear division chain wheel,The PEEK modified materials are using medical grade toner and PEEK powder as raw material,Successively pass through dual-screw pelletizer after stirring evenly,The PEEK that single screw extrusion machine and large scale bar mold prepare a diameter of 100~130mm is modified bar,Pass through machining,Chain wheel used in dental denture is made in spraying and mark,It is processed by computer aided design and manufacture,Target artificial tooth product is made in sanding and polishing and sterilization,PEEK modified materials are made in different ratio color and performance are probed into,The PEEK modified materials of different colours are used to make dental denture,Expand the range of choice of terminal client,Improve the wear-resisting and corrosion resistance of artificial tooth,Hardness is moderate not to damage former tooth,Possess outstanding biology not sensitization,Improve the comfort that patient uses artificial tooth.
Description
Technical field
The present invention relates to gear division articles for use, specific field is a kind of preparation side of PEEK modified materials suitable for gear division chain wheel
Method.
Background technology
Common people possess 28 to 32 teeth, and number is more and function is special, and coming off due to a variety of causes just needs mounting an artificial tooth
Meet normal function, we are known as artificial tooth at usually said artificial tooth in medicine.Traditional artificial tooth zirconium dioxide (ceramics) hardness
The big former tooth of an abrasion, and density, much larger than skeleton density, the comfort of wearing is bad, the temperature tolerance of ordinary resin porcelain tooth disk
Can be poor, material surface hardness is not high, wears no resistance and antibiotic property is not strong.PEEK is as a kind of containing there are one ketonic bond and two ethers
The high polymer of key, since its density is low, elasticity modulus is similar to skeleton, and the weight ratio of high intensity is very suitable for making justice
Tooth, and PEEK material high abrasions are corrosion-resistant, hardness is relatively low, will not injury of primary tooth, be readily cleaned during use, be also the later stage
It is comfortable and convenient using providing.In addition, PEEK materials have good biocompatibility, it can be used as and plant in medical surgery
Enter materials'use, X-ray can be allowed to penetrate additionally, due to PEEK to avoid allergic reaction of the patient for alloying metal,
Can be with blur-free imaging during Operations Research, it is not necessary to worry due to image problem and caused by mistaken diagnosis.
Invention content
The purpose of the present invention is to provide a kind of preparation method of the PEEK modified materials suitable for gear division chain wheel, to solve
The problems mentioned above in the background art.
To achieve the above object, the present invention provides following technical solution：A kind of PEEK suitable for gear division chain wheel is modified material
The preparation method of material, preparation method include the following steps：
1) toner and PEEK powder under room temperature, are pressed 1:5~6 ratio is mixed, by homogenizer into
Row stirring, blender rotating speed are 2000rpm；
2) by the mixture of step 1) by dual-screw pelletizer extruding pelletization, the PEEK that different color matchings are made is modified grain
Son；
3) particle made from step 2) is added in into single screw extrusion machine, is changed PEEK by large scale bar mold after extrusion
Property material preparation is into the bar of a diameter of 100~130mm；
4) chain wheel used in dental denture is made by machining, spraying and mark in bar made from step 3)；
5) chain wheel made from step 4) is processed by computer aided design and manufacture, sanding and polishing and sterilization system
Obtain target artificial tooth product.
Preferably, the mesh number of the PEEK powder is 50 mesh.
Preferably, the grain size of the toner is 80 μm.
Preferably, the type of the toner is medical grade titanium dioxide, titanium chromium brown powder and iron oxide red toner.
Preferably, the dual-screw pelletizer operating temperature is 360~370 DEG C.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of PEEK modified materials suitable for gear division chain wheel
Preparation method, for existing artificial tooth material insufficient present on sterilization ability and wearing comfort, by using medical grade
Toner is modified PEEK resins, and the PEEK modified materials of different colours are made, utilize modified PE EK resin replacement tradition materials
Material, which prepares artificial tooth, can improve wear-resisting, the corrosion resistance of artificial tooth, since the elasticity modulus of PEEK is similar to people's bone, to the mill of former tooth
Damage is smaller, improves the comfort of artificial tooth wearer, and the PEEK resins of difference color matching can be used for preparing different denture structures,
The range of choice of terminal client has also been enlarged, corona prepared by PEEK resins is due to possessing suitable hardness, in not injury of primary tooth
While there is stronger wearability again, and sufficient toughness can also preferably protect the tooth of damage, it is prepared by PEEK resins
Bridge due to possessing outstanding biology not sensitization, preferable prevention effect is possessed for the allergic reaction of patient, for office
Portion damages and needs the patient using partial denture, and the patient that PEEK resins are with elasticity modulus similar in human body possesses preferably
Mouth comfort.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's all other embodiments obtained without making creative work, belong to this hair
The range of bright protection.
Embodiment 1：
80 μm of pharmaceutical grade titanium dioxide is added in 50 mesh PEEK toners, ratio is respectively 3:16、3:17,3:
18, it is stirred evenly by homogenizer, rotating speed 2000rpm, the mixed-powder stirred evenly is added to dual-screw pelletizer
Barrel in, extruding pelletization is carried out at a temperature of 360~370 DEG C, makes white PEEK modified particles by single screw extrusion machine
The bar of a diameter of 100~130mm is prepared with large scale bar mold, target bar is made by machining, spraying, mark
Target chain wheel is obtained, prepared chain wheel is processed by the computer aided design and manufacture in later stage, target justice is made in sanding and polishing
Tooth product.
Correlated performance test is carried out to white PEEK modified materials made from embodiment 1, specific test result is as follows：
Toner and PEEK toners ratio are 3 in embodiment 1:The color of white PEEK modified materials made from 17 with
Standard color aberration Δ E is 0.27 ＜ 0.5, and the bending strength of example 1 is better than the bending strength of comparative example 1 and comparative example 2, and example 1
Bending modulus with suitable tooth, therefore white PEEK modified materials made from example 1 are suitable for preparing dental denture.
Embodiment 2：
80 μm of pharmaceutical grade titanium dioxide, titanium chromium brown powder are added in 50 mesh PEEK toners, ratio is respectively 15:
1:84、15:1:83、15:1:85, it is stirred evenly by homogenizer, rotating speed 2000rpm, the mixed-powder that will be stirred evenly
It is added in the barrel of dual-screw pelletizer, extruding pelletization is carried out at a temperature of 360~370 DEG C, make tooth true qualities PEEK modifications
Particle prepares the bar of 100~130mm of diameter by single screw extrusion machine and large scale bar mold, and target bar passes through machine
Processing, spraying, mark, are made target chain wheel, and prepared chain wheel is processed by the computer aided design and manufacture in later stage, beaten
Target artificial tooth product is made in grinding and polishing light.
Correlated performance test is carried out to tooth true qualities PEEK modified materials made from embodiment 2, specific test result is as follows：
Toner and PEEK toners ratio are 15 in example 2:1:Tooth true qualities PEEK modified materials made from 84
Color is 0.19 ＜ 0.5 with standard color aberration Δ E, and the bending strength and bending modulus of example 2 are superior to comparative example 1 and comparative example
2。
Embodiment 3：
80 μm of pharmaceutical grade titanium dioxide, titanium chromium brown powder are added in 50 mesh PEEK toners, ratio is respectively 15:
1:84、30:1:168 and 14:2:84, it is stirred evenly by homogenizer, rotating speed 2000rpm, the mixed powder that will be stirred evenly
End is added in the barrel of dual-screw pelletizer, and extruding pelletization is carried out at a temperature of 360~370 DEG C, is made tooth true qualities PEEK and is changed
Property particle the bar of 100~130mm of diameter is prepared by single screw extrusion machine and large scale bar mold, target bar passes through
Machining, spraying, mark, are made target chain wheel, prepared chain wheel processed by the computer aided design and manufacture in later stage,
Target artificial tooth product is made in sanding and polishing.
Correlated performance test is carried out to tooth true qualities PEEK modified particles made from embodiment 3, specific test result is as follows：
The color for having probed into tooth true qualities PEEK modified materials in embodiment 3 matches, toner and PEEK toners in example 3
Ratio is 15:1:The color of tooth true qualities PEEK modified materials made from 84 is 0.19 ＜ 0.5 with standard color aberration Δ E, example 3
Aberration is better than comparative example 1 and comparative example 2, therefore tooth true qualities PEEK modified materials made from example 3 are suitable for preparing dental denture.
Embodiment 4：
80 μm of pharmaceutical grade titanium dioxide, iron oxide red toner are added in 50 mesh PEEK toners, ratio 15:1:
84、15:1:83、15:1:85, it is stirred evenly by homogenizer, rotating speed 2000rpm adds the mixed-powder stirred evenly
Enter into the barrel of dual-screw pelletizer, extruding pelletization is carried out at a temperature of 360~370 DEG C, make gum color PEEK and be modified grain
Son prepares the bar of 100~130mm of diameter by single screw extrusion machine and large scale bar mold, and target bar is added by machine
Target chain wheel is made in work, spraying, mark, and prepared chain wheel is processed by the computer aided design and manufacture in later stage, polishing
Target artificial tooth product is made in polishing.
Correlated performance test is carried out to gum color PEEK modified particles made from embodiment 4, specific test result is as follows：
Toner and PEEK toners ratio are 15 in example 4:1:Gum color PEEK modified materials made from 84
Color is 0.34 ＜ 0.5 with standard color aberration Δ E, and the bending strength of example 4 is better than comparative example 1 and comparative example 2, and example 4 has
It is suitble to the bending modulus of tooth.
Embodiment 5：
80 μm of pharmaceutical grade titanium dioxide, iron oxide red toner are added in 50 mesh PEEK toners, ratio 15:1:
84、30:1:168 and 14:2:84, it is stirred evenly by homogenizer, rotating speed 2000rpm, the mixed-powder that will be stirred evenly
It is added in the barrel of dual-screw pelletizer, extruding pelletization is carried out at a temperature of 360~370 DEG C, make gum color PEEK modifications
Particle prepares the bar of 100~130mm of diameter by single screw extrusion machine and large scale bar mold, and target bar passes through machine
Processing, spraying, mark, are made target chain wheel, and prepared chain wheel is processed by the computer aided design and manufacture in later stage, beaten
Target artificial tooth product is made in grinding and polishing light.
Correlated performance test is carried out to gum color PEEK modified particles made from embodiment 5, specific test result is as follows：
The color that gum color PEEK modified materials have been probed into embodiment 5 matches, toner and PEEK toners in example 5
Ratio is 15:1:The color of tooth true qualities PEEK modified materials made from 84 is 0.34 ＜ 0.5 with standard color aberration Δ E, example 5
Aberration is better than comparative example 1 and comparative example 2, therefore tooth true qualities PEEK modified materials made from example 5 are suitable for preparing dental denture.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of preparation method of PEEK modified materials suitable for gear division chain wheel, it is characterised in that：Preparation method include with
Lower step：
1) toner and PEEK powder under room temperature, are pressed 1:5~6 ratio is mixed, and is stirred by homogenizer
It mixes, blender rotating speed is 2000rpm；
2) the PEEK modified particles of different color matchings are made by dual-screw pelletizer extruding pelletization in the mixture of step 1)；
3) particle made from step 2) is added in into single screw extrusion machine, PEEK is modified by material by large scale bar mold after extrusion
Material is prepared into the bar of a diameter of 100~130mm；
4) chain wheel used in dental denture is made by machining, spraying and mark in bar made from step 3)；
5) chain wheel made from step 4) is processed by computer aided design and manufacture, mesh is made in sanding and polishing and sterilization
Mark artificial tooth product.
2. one kind according to claim 1, it is characterised in that：The mesh number of the PEEK powder is 50 mesh.
3. one kind according to claim 1, it is characterised in that：The grain size of the toner is 80 μm.
4. one kind according to claim 1, it is characterised in that：The type of the toner is medical grade titanium dioxide, titanium chromium palm fibre
Toner and iron oxide red toner.
5. one kind according to claim 1, it is characterised in that：The dual-screw pelletizer operating temperature is 360~370
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416821.3A CN108162349A (en) | 2017-12-25 | 2017-12-25 | A kind of preparation method of PEEK modified materials suitable for gear division chain wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711416821.3A CN108162349A (en) | 2017-12-25 | 2017-12-25 | A kind of preparation method of PEEK modified materials suitable for gear division chain wheel |
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| CN108162349A true CN108162349A (en) | 2018-06-15 |
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| CN201711416821.3A Pending CN108162349A (en) | 2017-12-25 | 2017-12-25 | A kind of preparation method of PEEK modified materials suitable for gear division chain wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022191567A1 (en) | 2021-03-08 | 2022-09-15 | (주)바이오니아 | Composition for administration of double-stranded oligonucleotide structures using ultrasonic nebulizer for prevention or treatment of respiratory viral infection including covid-19, pulmonary fibrosis caused by viral infection, or respiratory diseases |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828780A (en) * | 2013-12-19 | 2016-08-03 | 尤沃拉有限公司 | Polyaryletherketone dental block for cad/cam milling |
| CN106308959A (en) * | 2016-08-26 | 2017-01-11 | 南宁越洋科技有限公司 | Bioactive glass ceramic fiber-PEEK resin composite artificial tooth and preparation method |
| CN106466232A (en) * | 2016-08-30 | 2017-03-01 | 何仁英 | A kind of anticorrosion artificial tooth macromolecular material and preparation method thereof |
| CN106751444A (en) * | 2016-12-12 | 2017-05-31 | 运怡（北京）医疗器械有限公司 | Preparation method of white PEEK material |
| CN106751308A (en) * | 2016-12-16 | 2017-05-31 | 东莞市翔通光电技术有限公司 | A kind of dentistry artificial tooth plexiglass disk and preparation method thereof |
-
2017
- 2017-12-25 CN CN201711416821.3A patent/CN108162349A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828780A (en) * | 2013-12-19 | 2016-08-03 | 尤沃拉有限公司 | Polyaryletherketone dental block for cad/cam milling |
| CN106308959A (en) * | 2016-08-26 | 2017-01-11 | 南宁越洋科技有限公司 | Bioactive glass ceramic fiber-PEEK resin composite artificial tooth and preparation method |
| CN106466232A (en) * | 2016-08-30 | 2017-03-01 | 何仁英 | A kind of anticorrosion artificial tooth macromolecular material and preparation method thereof |
| CN106751444A (en) * | 2016-12-12 | 2017-05-31 | 运怡（北京）医疗器械有限公司 | Preparation method of white PEEK material |
| CN106751308A (en) * | 2016-12-16 | 2017-05-31 | 东莞市翔通光电技术有限公司 | A kind of dentistry artificial tooth plexiglass disk and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022191567A1 (en) | 2021-03-08 | 2022-09-15 | (주)바이오니아 | Composition for administration of double-stranded oligonucleotide structures using ultrasonic nebulizer for prevention or treatment of respiratory viral infection including covid-19, pulmonary fibrosis caused by viral infection, or respiratory diseases |
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Application publication date: 20180615 |