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Potassium-bismuth titanate piezoelectric ceramic/native copper composite material and preparation method thereof

A technology of piezoelectric ceramics and bismuth potassium titanate, which is applied in the field of composite materials and its preparation, can solve the problems of single function, high price, poor osteoinductivity, etc., to promote cell proliferation, improve piezoelectric performance, and promote osteogenesis Effect

Inactive Publication Date: 2014-04-30
JIAMUSI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a bismuth potassium titanate piezoelectric ceramic / natural copper composite material and its preparation method in order to solve the problems of poor osteoinductivity, single function and high price in existing bone repair materials

Method used

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specific Embodiment approach 1

[0028] Specific embodiment 1: In this embodiment, a bismuth potassium titanate piezoelectric ceramic / natural copper composite material is composed of bismuth potassium titanate piezoelectric ceramic powder with a particle size of 50nm to 200nm and natural copper with a particle size of 100μm to 500μm. Made of copper powder; wherein, the mass fraction of the natural copper powder in the bismuth potassium titanate piezoelectric ceramic / natural copper composite material is 1% to 10%.

[0029] The bismuth potassium titanate piezoelectric ceramic / natural copper composite material prepared in this embodiment has good osteogenesis performance, and the osteogenic area of ​​the bone defect area reaches 85% after 12 weeks of implantation in the rabbit animal. In addition, it also has bactericidal, antiviral, non-toxic side effects, can provide a variety of trace elements necessary for fracture healing, enhance the activity of various enzymes, help the formation of bone matrix and the dep...

specific Embodiment approach 2

[0031] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the particle size of the KBT ceramic powder is 80nm-150nm. Other parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the mass fraction of the natural copper powder in the bismuth potassium titanate piezoelectric ceramic / natural copper composite material is 1%, 3% , 5% or 10%. Other parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a potassium-bismuth titanate piezoelectric ceramic / native copper composite material and a preparation method thereof, relates to a composite material and a preparation method thereof, and aims at solving the problems of poor osteoconduction, single function and high price of the existing bone repair material. The composite material is prepared from potassium-bismuth titanate piezoelectric ceramic powder and native copper powder. The preparation method of the composite material comprises the steps of 1, preparing the potassium-bismuth titanate piezoelectric ceramic powder by a citrate hydrothermal method and then obtaining the potassium-bismuth titanate piezoelectric ceramic powder having the grain sizes ranging from 50nm to 200nm, 2, forging the native copper by a vinegar quenching method to obtain the native copper powder having the grain sizes ranging from 100 microns to 500 microns, and 3, preparing the potassium-bismuth titanate piezoelectric ceramic / native copper composite material through hot pressed sintering. The potassium-bismuth titanate piezoelectric ceramic / native copper composite material is applied to the bone repair field.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof. Background technique [0002] The treatment of large segmental and intractable bone defects caused by trauma, bone disease and other reasons is a major problem in the medical field. The treatment of more than 80% of bone defects clinically requires the help of bone repair materials, but the existing bone repair materials have poor osteogenesis induction, slow and small amount of new bone formation, and cannot achieve the ideal therapeutic effect. [0003] Endowing materials with inductivity to fully mobilize the body's self-healing potential is the principle and development direction of today's biomaterial design. According to this principle, adding growth factors or bionic design optimization materials are currently two effective ways to improve the osteoinductivity of bone repair materials. However, the addition of growth factors involves safety issues such as immunity a...

Claims

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Application Information

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IPC IPC(8): C04B35/475C04B35/622
Inventor 王静田雪粉乌彦全张文博郭绎罗
Owner JIAMUSI UNIVERSITY
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