Poly(ether-ether-ketone)-based dental special material with high bonding strength and preparation method thereof

A technology based on polyetheretherketone and polyetheretherketone, which is applied in the field of barium glass powder, glass fiber, polyetheretherketone ternary composite materials and their preparation, can solve material erosion, affect material biocompatibility, concentration Sulfuric acid can not be used and other problems, to achieve the effect of improving mechanical properties and bonding strength, reducing the coefficient of thermal expansion

Inactive Publication Date: 2012-12-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The literature shows that concentrated sulfuric acid treatment can significantly improve the bonding strength, but concentrated sulfuric acid will severely corrode the surface of the material, and the resulting sulfonation will seriously affect the biocompatibility of the material, and concentrated sulfuric acid is difficult to control. Corrosive liquid, which makes concentrated sulfuric acid unusable in clinical operations

Method used

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  • Poly(ether-ether-ketone)-based dental special material with high bonding strength and preparation method thereof
  • Poly(ether-ether-ketone)-based dental special material with high bonding strength and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Select barium glass powder and glass fiber as the reinforcing phase, and polyether ether ketone as the matrix. The specific steps are as follows:

[0031] 1. Mixing polyether ether ketone and barium glass powder: Add 2400g polyether ether ketone and 1600g barium glass powder into a high-speed mixer, stir mechanically for 2 minutes, then dry at 120°C for 3 hours for later use; put the processed powder in Haake Processing by twin-screw extruder, processing temperature is 280°C-360°C, speed is 80r / min-160r / min, extruded and cut as composite material A;

[0032] 2. Mixing of polyether ether ketone and glass fiber: Dry 2400g polyether ether ketone and 1600g glass fiber at 120°C for 3 hours respectively, add polyether ether ketone into the twin-screw extruder from the feeding port, and glass fiber from the twin-screw extruder Imported at the first exhaust port of the screw extruder, the processing temperature is 280°C-360°C, the speed is 80r / min-160r / min, and the material is ...

Embodiment 2

[0036] In step 3, 2000g of composite material A and 2000g of composite material B are extruded twice, and other steps are the same as in embodiment 1.

Embodiment 3

[0038] In step 3, 3000g of composite material A and 1000g of composite material B are extruded twice, and other steps are the same as in embodiment 1.

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Abstract

The invention provides a poly(ether-ether-ketone) (PEEK)-based dental special material with high bonding strength and a preparation method thereof, belonging to the technical field of dental material. The dental special material uses PEEK as matrix and glass fiber and barium glass powder as inorganic filler and comprises these components by weight: 60%-80% of PEEK, 5%-30% of barium glass powder and 5%-30% of glass fiber. The preparation method comprises the steps of mixing PEEK and barium glass powder, and extruding through a twin screw extruder to obtain a composite material A; extruding PEEK and glass fiber through a twin screw extruder to obtain a composite material B; and mixing the composite materials A and B, and extruding through a twin screw extruder to obtain the final product. According to the invention, through the filling of glass fiber and barium glass powder, mechanical property and bonding strength of the material are largely increased and coefficient of thermal expansion is reduced. Moreover, the material is prepared without plasma treatment, laser irradiation or concentrated sulfuric acid treatment, and is suitable to be used in oral clinic.

Description

technical field [0001] The invention belongs to the technical field of oral cavity materials, and in particular relates to a barium glass powder, glass fiber, polyether ether ketone ternary composite material with high bonding strength, high mechanical strength and low linear expansion coefficient and a preparation method thereof. technical background [0002] Polyether ether ketone is a high-performance polymer material, which has been widely used in military, aerospace, medical and other high-tech fields since its invention in the 1960s. Because of its good biocompatibility, polyetheretherketone began to be used for human tissue repair in the 1990s. The intervertebral fusion device made of polyetheretherketone material has been clinically tested for many years and has achieved Good therapeutic effect. Polyether ether ketone is a material with both toughness and rigidity. After being reinforced with inorganic fillers, it can obtain modulus, strength and thermal expansion c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K3/40C08K7/14A61K6/087A61K6/027A61K6/891
Inventor 张海博闫鹏涛姜振华王永鹏朱晔
Owner JILIN UNIV
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