A kind of ZrO2 toughened bioactive ceramic powder material for 3D printing and its preparation and application
A bioactive ceramic and 3D printing technology, which is applied in the field of biomedical material preparation, can solve the problems of limiting the application in the medical field and the destruction of ceramic restorations, and achieves the effects of easy industrialized mass production, low production cost and simple preparation process.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0039] (1) With deionized water and hyaluronic acid as solvent (the amount of hyaluronic acid is 10% of the solvent mass), polyethylene glycol is added as a dispersant (2% of the mass of the mixed powder), and the solution is adjusted with ammonia water The pH reached 10; then the mixed solution was transferred to a container containing bioactive powder (amorphous hydroxyapatite prepared by ordinary chemical precipitation) and ZrO 2 Powder (commercially available, 10% of the mass of the bioactive powder) is used for ball milling in a mixed powder tank, the volume ratio of the mixed powder to the solvent is 6:4, and ball milled at 700r / min for 3 h at room temperature Prepare slurry;
[0040] (2) Pre-freeze the slurry after ball milling in step (1) at -20°C for 12 hours and then freeze-dry for 48 hours. The dried powder and polyvinyl alcohol pass through metal vibrating sieves with 150 mesh and 500 mesh respectively in turn, so that The particle size distribution of the powder ...
Embodiment 2
[0043] (1) With deionized water and glycerin as solvent (the amount of glycerin is 30% of solvent mass), adding ammonium polyacrylate is dispersant (1.5% of mixed powder mass), adjust solution pH with ammonia water Reach 9; Then move the mixed solution to a place containing bioactive powder (spheroidal β-tricalcium phosphate prepared by ordinary chemical precipitation) and ZrO 2Powder (commercially available, 8% of the mass of the bioactive powder) is composed of a mixed powder ball mill tank, the volume ratio of the mixed powder to the solvent is 5:5, and it is prepared by ball milling at 750r / min for 2h at room temperature. get slurry;
[0044] (2) Pre-freeze the slurry after ball milling in step (1) at -20°C for 12 hours and then freeze-dry for 48 hours. The dried powder and methyl cellulose pass through metal vibrating sieves with 150 mesh and 500 mesh in turn, Make the particle size distribution of the powder in the micron level;
[0045] (3) Weigh the sieved powder and...
Embodiment 3
[0049] (1) With deionized water and provitamin B5 as solvent (the amount of provitamin B5 is 15% of solvent quality), adding stearic acid is a dispersant (2.5% of mixed powder quality), adjust solution pH with ammonia water Reach 11; Then move the mixed solution to contain bioactive powder (unshaped bioactive glass prepared by common sol-gel method) and ZrO 2 Powder (commercially available, 20% of the mass of the bioactive powder) is mixed in a ball mill tank, the volume ratio of the mixed powder to the solvent is 4:6, and it is prepared by ball milling at 600r / min for 4h at room temperature. get slurry;
[0050] (2) The slurry after the ball milling in step (1) was pre-frozen in liquid nitrogen and then directly freeze-dried for 48 hours. The dried powder and agarose passed through metal vibrating sieves with 150 mesh and 500 mesh respectively in turn to make the powder The particle size distribution is on the micron scale;
[0051] (3) Weigh the sieved powder and agarose (...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size distribution | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More