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Corrosion resistant alumina ceramic and preparation method thereof

A kind of alumina ceramics, corrosion-resistant technology, applied in the biological field, can solve the problems of difficult processing, alumina ceramics are easily corroded by human body fluids, etc., to achieve the effect of preventing adhesion and improving corrosion resistance

Inactive Publication Date: 2015-08-12
SUZHOU VIVOTIDE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical properties of single crystal alumina ceramics are better than those of polycrystalline alumina, which is suitable for parts with heavy load and high wear resistance requirements, but its disadvantage is that it is difficult to process
However, most of the alumina ceramics in the prior art are easily corroded by human body fluids.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Corrosion-resistant alumina ceramics, including the following raw materials in parts by weight: 40 parts of aluminum oxide, 2 parts of sodium oxide, 4 parts of calcium carbide, 7 parts of oleic acid, 10 parts of polybutylene succinate, 4 parts of initiator, surface active 1 dose.

[0016] The relative molecular mass of polybutene succinate is 10000.

[0017] The initiator is azobisisobutyronitrile, ammonium persulfate, benzoyl peroxide and phenylacetyl peroxide with a mass ratio of 1:1:7:1.

[0018] The surfactant is glyceryl monostearate, sorbitan sesquioleate, propylene glycol fatty acid ester, and dioctyl sodium sulfosuccinate with a mass ratio of 2:1:8:1.

[0019] The preparation method of the above-mentioned corrosion-resistant alumina ceramics comprises the following steps:

[0020] Melt the alumina, cool it, then pulverize it, add oleic acid and mix evenly, then add polybutene succinate, initiator, surfactant and mix evenly, put it into the crucible, then add s...

Embodiment 2

[0022] Corrosion-resistant alumina ceramics, including the following raw materials in parts by weight: 90 parts of alumina, 8 parts of sodium oxide, 9 parts of calcium carbide, 9 parts of oleic acid, 12 parts of polybutylene succinate, 10 parts of initiator, surface active 3 doses.

[0023] The relative molecular mass of polybutene succinate is 60,000.

[0024] The initiator is azobisisobutyronitrile, phenylacetyl peroxide and benzoyl peroxide in a mass ratio of 1:1:3.

[0025] The surfactant is sorbitan sesquioleate, propylene glycol fatty acid ester, and dioctyl sodium sulfosuccinate with a mass ratio of 1:3:1.

[0026] The preparation method of the above-mentioned corrosion-resistant alumina ceramics comprises the following steps:

[0027] Melt the alumina, cool it, then pulverize it, add oleic acid and mix evenly, then add polybutene succinate, initiator, surfactant and mix evenly, put it into the crucible, then add sodium oxide and calcium carbide into the crucible, Ke...

Embodiment 3

[0029] Corrosion-resistant alumina ceramics, including the following raw materials in parts by weight: 50 parts of aluminum oxide, 5 parts of sodium oxide, 7 parts of calcium carbide, 8 parts of oleic acid, 11 parts of polybutylene succinate, 7 parts of initiator, surface active 2 doses.

[0030] The relative molecular weight of polybutene succinate is 40000.

[0031] The initiator is azobisisobutyronitrile, ammonium persulfate, benzoyl peroxide and phenylacetyl peroxide with a mass ratio of 7:1:4:1.

[0032] The surfactant is propylene glycol fatty acid ester and dioctyl sulfosuccinate sodium with a mass ratio of 1:6.

[0033] The preparation method of the above-mentioned corrosion-resistant alumina ceramics comprises the following steps:

[0034] Melt the alumina, cool it, then pulverize it, add oleic acid and mix evenly, then add polybutene succinate, initiator, surfactant and mix evenly, put it into the crucible, then add sodium oxide and calcium carbide into the crucibl...

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PUM

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Abstract

The invention discloses a corrosion resistant alumina ceramic and a preparation method thereof. The ceramic includes following raw material by weight: 40-90 parts of alumina, 2-8 parts of sodium oxide, 4-9 parts of calcium carbide, 7-9 parts of oleic acid, 10-12 parts of poly butylene succinate, 4-10 parts of a triggered agent and 1-3 parts of a surface active agent. The preparation method is as follows: melting the alumina, cooling, crushing, adding the oleic acid, mixing evenly, then adding the poly butylene succinate, the triggered agent and the surface active agent, mixing evenly, putting into a crucible, then adding the sodium oxide and the calcium carbide into the crucible, keeping the temperature at 1200 to 1300 DEG C for 1-2 hours, and finally naturally cooling. The oleic acid is used to modify the surface of the crushed alumina, bonding is prevented, and the corrosion resistance is improved.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a corrosion-resistant alumina ceramic and a preparation method thereof. Background technique [0002] Bioinert ceramics mainly refer to ceramic materials with stable chemical properties and good biocompatibility. Single crystal alumina has a relatively high bending strength in the c-axis direction, good wear resistance and heat resistance, and can be directly fixed with bone. It has been used as artificial bone, tooth root, joint, bolt. Moreover, the bolt does not rust, nor does it dissolve harmful ions. Unlike metal bolts, it does not need to be taken out of the body. In the late 1960s, it was widely used for hard tissue repair. From the 1970s to the mid-1980s, many countries in the world, such as the United States, Japan, Switzerland and other countries, carried out extensive research and application on oxide ceramics, especially alumina bioceramics. Since alumina ceramics a...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/632
Inventor 潘林根刘大学郭玉芹
Owner SUZHOU VIVOTIDE BIOTECH