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Bionic electrical activity moldable titanium reinforced composite film material and preparation method thereof

A technology for enhancing composite and membrane materials, applied in the field of biomimetic electroactive plastic titanium reinforced composite membrane materials and their preparation, can solve problems such as plasticity and mechanical support that cannot meet clinical repair requirements, and avoid soft and hard tissue and titanium mesh. Simple and controllable effects of adhesion, preparation and processing

Active Publication Date: 2019-11-12
PEKING UNIV SCHOOL OF STOMATOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relying solely on this composite membrane material, for some special clinical diseases such as implant repair bone augmentation or large-scale bone defect repair, the membrane material cannot meet the clinical repair requirements in terms of plasticity and mechanical support.

Method used

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  • Bionic electrical activity moldable titanium reinforced composite film material and preparation method thereof
  • Bionic electrical activity moldable titanium reinforced composite film material and preparation method thereof
  • Bionic electrical activity moldable titanium reinforced composite film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Take 0.1878g piezoelectric ceramic particles BaTiO 3 Disperse in 3mL organic solvent DMF, and use ultrasonic vibration combined with stirring for 1h to obtain ceramic particle dispersion;

[0039] (2) Weigh 1g of polymer P(VDF-TrFE), add 7mL of organic solvent DMF, stir for 6h to completely dissolve, and obtain polymer P(VDF-TrFE) solution;

[0040] (3) Add the suspension obtained in step (1) to the polymer P (VDF-TrFE) solution obtained in step (2), and stir for 10 h so that the ceramic particle filler is evenly dispersed in the polymer P (VDF-TrFE) matrix to obtain mixed solution;

[0041](4) Take half of the mixed solution obtained in step (3) and cast it into a film in a casting device, dry it at 55°C, then place the titanium mesh support in the center of the dried film, continue to cast the other half of the mixed solution and Dry the solvent to completely volatilize to obtain a plastic titanium reinforced composite membrane material with a thickness of 200 μ...

Embodiment 2

[0050] (1) Weigh 1g of piezoelectric polymer P(VDF-TrFE), add 10mL of organic solvent DMF, stir for 5h to completely dissolve, and obtain polymer P(VDF-TrFE) solution;

[0051] (2) Cast half of the solution of the polymer (such as P(VDF-TrFE)) obtained in step (1) into a casting device to form a film, dry it at 50°C, and then place the titanium mesh bracket after drying In the center of the membrane, continue to cast the other half of the mixed solution and dry it to completely evaporate the solvent to obtain a plastic titanium-reinforced composite membrane material with a thickness of 300 μm.

[0052] (3) Take the composite membrane material obtained in step (2), and use the corona polarization method to polarize the membrane material. The polarization treatment parameters are: polarization field strength 1.5kV / mm, polarization time 30min, you can get A biomimetic electroactive shapeable titanium-reinforced composite membrane material.

[0053] The biomimetic electroactive p...

Embodiment 3

[0055] (1) Disperse 0.5 g of piezoelectric ceramic particles potassium sodium niobate in 3 mL of organic solvent DMF, and use ultrasonic oscillation combined with stirring for 2 hours to obtain a dispersion of ceramic particles;

[0056] (2) Weigh 1g of piezoelectric polymer P(VDF-TrFE), add 7mL of organic solvent DMF, stir for 8h to completely dissolve, and obtain polymer P(VDF-TrFE) solution;

[0057] (3) Add the suspension obtained in step (1) to the polymer P (VDF-TrFE) solution obtained in step (2), and stir for 12 hours so that the ceramic particle filler is evenly dispersed in the polymer P (VDF-TrFE) matrix to obtain mixed solution;

[0058] (4) Take half of the mixed solution obtained in step (3) and cast it into a film in a casting device, dry it at 40°C, then place the titanium mesh support in the center of the dried film, continue to cast the other half of the mixed solution and Dry it to completely evaporate the solvent to obtain a plastic titanium-reinforced com...

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Abstract

The invention discloses a bionic electrical activity moldable titanium reinforced composite film material and a preparation method thereof. The bionic electrical activity moldable titanium reinforcedcomposite film material mainly consists of an electrical activity film material and a titanium mesh, wherein the electrical activity film material is a piezoelectric polymer film or a nanometer composite film consisting of a nanometer level piezoelectric ceramic particle filling and a piezoelectric polymer basal body; and the volume by percentage of the piezoelectric ceramic particle filling is 0-20%. Through adjustment of parameters of a preparation technology, bionic electrical properties and molding of a titanium mesh composite reinforced film can be controllably adjusted. The prepared electrical activity titanium mesh reinforced composite film material has favorable effects on performing bone implantation molding, maintaining bone mass and accelerating bone repair, is high in clinicalmaneuverability, is particularly suitable for clinical indications of extensive bone defect molding repair of bone stuffing implantation, oral cavity implant repair bone increment, tooth extraction socket site preservation and the like. The preparation method which is adopted is simple, and high in controllability, and can be applied to industrial production.

Description

technical field [0001] The invention belongs to the technical field of orthopedic and oral surgery repair materials, and in particular relates to a bionic electroactive plastic titanium reinforced composite membrane material and a preparation method thereof. Background technique [0002] Guided bone regeneration (GBR) is a commonly used technique in dental implantology for bone augmentation or jaw defect repair. The basic principle is to use the barrier membrane to effectively prevent soft tissue cells from entering the bone defect area, maintain the defect space, and promote bone defect repair. The key to this technology lies in the selection of the barrier film. At present, absorbable films or titanium omentum are often used clinically in China, and certain clinical effects have been achieved. However, due to the problems of poor mechanical strength and fast biodegradation of absorbable films, It is prone to collapse during the repair process. Titanium mesh has defects s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/56A61L27/06A61L27/10A61L27/16
CPCA61L27/56A61L27/06A61L27/10A61L27/16A61L2430/02A61L2430/12C08L27/14C08L27/12
Inventor 张学慧邓旭亮白云洋
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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