Light-cured hydroxyapatite ceramic slurry and preparation method and application thereof

A technology of hydroxyapatite and ceramic slurry, which is applied in the field of functional ceramics, can solve the problems of restricting the application of hydroxyapatite and less photocuring forming technology, and achieve the effects of low cost, stable mechanical properties and simple preparation methods

Pending Publication Date: 2021-01-05
江西金石三维智能制造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are relatively few reports on the photocuring forming technology for porous gradient ceramics.
In particular, the lack of research on the porous gradient hydroxyapatite system restricts the further application of hydroxyapatite in orthopedic medicine

Method used

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  • Light-cured hydroxyapatite ceramic slurry and preparation method and application thereof
  • Light-cured hydroxyapatite ceramic slurry and preparation method and application thereof
  • Light-cured hydroxyapatite ceramic slurry and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example 1-3

[0036] A photocurable hydroxyapatite slurry comprises the following components in parts by weight: modified hydroxyapatite powder, diluent, and photoinitiator.

[0037] The modified hydroxyapatite powder is prepared by mixing hydroxyapatite powder, a surface modifier and a dispersant.

[0038] In the examples and comparative examples, the amount of each component is based on the hydroxyapatite powder and calculated according to the mass ratio.

[0039] The formula of modified hydroxyapatite powder is as shown in table 1:

[0040] Table 1

[0041]

[0042] The formula of light-cured hydroxyapatite ceramic slurry is shown in Table 2:

[0043] Table 2

[0044]

[0045]

[0046] The preparation method of light-cured hydroxyapatite slurry comprises the following steps:

[0047] (1) drying after mixing the hydroxyapatite powder, a dispersant and a surface modifier, to obtain a modified hydroxyapatite powder;

[0048] (2) mixing acrylate, reactive diluent and photoinitiat...

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PUM

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Abstract

The invention provides light-cured hydroxyapatite ceramic slurry and a preparation method and application thereof, and belongs to the field of functional ceramics. The hydroxyapatite ceramic slurry provided by the invention is prepared from modified hydroxyapatite powder, acrylate, a diluent and a photoinitiator according to a mass ratio of 31-100: 10-60: 10-60: 1-6. The modified hydroxyapatite powder is prepared from hydroxyapatite powder, a surface modifier and a dispersing agent according to the mass ratio of 30-80: 1-10: 1-10. The invention also provides a method for preparing the light-cured hydroxyapatite ceramic slurry through vacuum stirring, and also provides application of the ceramic slurry to the preparation of a ceramic scaffold with a porous gradient structure. The light-cured hydroxyapatite slurry is stable in performance and good in uniformity and dispersity. The hydroxyapatite porous gradient ceramic part prepared by the method is stable in mechanical property, and thepreparation method is simple, short in time consumption and low in cost.

Description

technical field [0001] The invention relates to the technical field of functional ceramics, in particular to a light-cured hydroxyapatite ceramic slurry and a preparation method and application thereof. Background technique [0002] Hydroxyapatite is not only basically consistent with the crystal composition and structure of human bone, but also its biocompatibility and interface bioactivity are all due to medical titanium, silicone rubber and carbon materials for bone grafting implanted into medical materials. In addition, it has excellent bone conduction It has the ability of sex and osseointegration, and has no toxic and side effects, so it is widely used as a physiological scaffold for hard tissue repair materials and bone filling materials, as well as bone repair materials in diseases and accidents. [0003] Although traditional dry pressing and injection molding techniques have produced hydroxyapatite ceramics, they rely too much on molds, making it difficult to meet t...

Claims

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Application Information

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IPC IPC(8): C04B35/447C04B35/634C04B35/632C04B38/06A61L27/10A61L27/12A61L27/50A61L27/56
CPCC04B35/447C04B35/63424C04B35/63444C04B35/632C04B38/062A61L27/10A61L27/12A61L27/56A61L27/50C04B2235/6562C04B2235/96A61L2430/02
Inventor 刘耀江泽星
Owner 江西金石三维智能制造科技有限公司
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