Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of porous bioceramics

A bioceramic and porous powder technology, applied in the field of medical materials, can solve the problems of poor mechanical properties of bioceramics, achieve the effects of improving mechanical properties, improving uniformity, and ensuring porosity

Active Publication Date: 2020-07-10
江苏中正陶瓷科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problem of poor mechanical properties of traditional bioceramics, a preparation method of porous bioceramics is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] In parts by weight, take 100 parts of rice husk, 3 parts of sodium fluoride, 4 parts of nano iron powder, stir and mix with a glass rod for 20 minutes, then pour into the crucible, and move the crucible into the carbonization furnace at a rate of 40 mL / min Pour argon into the furnace. Under argon protection, program the temperature to 600°C at a rate of 6°C / min. After holding and carbonizing for 4 hours, continue to heat up to 1600°C at a rate of 15°C / min. After holding for 4 hours, follow The furnace is cooled to room temperature and discharged to obtain carbonized rice husk material; in parts by weight, take 50 parts of carbonized rice husk material, 160 parts by mass of 10% calcium nitrate solution, and 130 parts by mass of 10% hydrogen phosphate Potassium solution, 80 parts mass fraction of 10% magnesium chloride solution, 10 parts calcium bicarbonate, first pour the carbonized rice husk material, calcium nitrate solution, magnesium chloride solution and calcium bicar...

example 2

[0025] In parts by weight, take 100 parts of rice husk, 3 parts of sodium fluoride, 4 parts of nano iron powder, stir and mix with a glass rod for 20 minutes, then pour into the crucible, and move the crucible into the carbonization furnace at a rate of 40 mL / min Pour argon into the furnace. Under argon protection, program the temperature to 600°C at a rate of 6°C / min. After holding and carbonizing for 4 hours, continue to heat up to 1600°C at a rate of 15°C / min. After holding for 4 hours, follow The furnace is cooled to room temperature and discharged to obtain carbonized rice husk material; in parts by weight, take 50 parts of carbonized rice husk material, 160 parts by mass of 10% calcium nitrate solution, and 130 parts by mass of 10% hydrogen phosphate Potassium solution, 10 parts of calcium bicarbonate, first pour the carbonized rice husk material, calcium nitrate solution and calcium bicarbonate into the reactor, and add dipotassium hydrogen phosphate solution to the react...

example 3

[0027] In parts by weight, take 100 parts of rice husk, 3 parts of sodium fluoride, 4 parts of nano iron powder, stir and mix with a glass rod for 20 minutes, then pour into the crucible, and move the crucible into the carbonization furnace at a rate of 40 mL / min Pour argon into the furnace. Under argon protection, program the temperature to 600°C at a rate of 6°C / min. After holding and carbonizing for 4 hours, continue to heat up to 1600°C at a rate of 15°C / min. After holding for 4 hours, follow The furnace is cooled to room temperature and discharged to obtain carbonized rice husk material; in parts by weight, take 50 parts of carbonized rice husk material, 160 parts by mass of 10% calcium nitrate solution, and 130 parts by mass of 10% hydrogen phosphate Potassium solution, 80 parts mass fraction of 10% magnesium chloride solution, first pour the carbonized rice husk material, calcium nitrate solution and magnesium chloride solution into the reactor, and add potassium hydrogen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method for porous biological ceramic, and belongs to the technical field of medical materials. The preparation method comprises the following steps: dropwise adding a dipotassium phosphate solution after mixing and stirring a carbonized rice husk material, a calcium nitrate solution, a magnesium chloride solution and calcium bicarbonate, and regulating the pHvalue; transferring materials into a high-pressure kettle, filtering, washing and drying after sealing and aging at constant temperature, thereby obtaining porous powder; mixing and soaking the porouspowder with a dopamine solution, and naturally drying to obtain pretreated porous powder; mixing the pretreated porous powder with a saturated potassium chlorate solution, naturally cooling to the room temperature, filtering and drying to obtain modified porous powder; in parts by weight, sequentially taking certain amount of modified porous powder and a binding agent to mix to obtain a mixture,pouring the mixture into a mould, pressing to obtain plain blank; and sintering at high temperature, cooling in a stepped mode, and performing alkaline leaching, washing and drying to obtain the porous biological ceramic. The porous biological ceramic provided by the invention has good mechanical properties.

Description

Technical field [0001] The invention discloses a method for preparing porous bioceramics and belongs to the technical field of medical materials. Background technique [0002] Ceramics have been used for the replacement of human tissues as early as the 1820s. Subsequently, people have extensively studied various biological materials that can be used for human tissue replacement. Among them, calcium phosphate ceramics are biologically active ceramics, and their main components are Ca and P, which are important inorganic substances that constitute human bone tissue. When implanted in the human body, under the action of body fluids, calcium and phosphorus will be free on the surface of the material, absorbed by the body tissue, and chemically bond with the human bone tissue to grow new tissue, thus becoming the current research on artificial bone replacement Hot spot. In the research of calcium phosphate ceramics, hydroxyapatite (HA) and β-calcium phosphate (β-TCP) are the most a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/447C04B38/02C04B35/64
Inventor 唐林元许蘅张琳
Owner 江苏中正陶瓷科技有限公司