A kind of high-strength, flexible and wear-resistant bionic composite joint material and preparation method thereof

A composite joint and bionic technology, applied in the intersection of biomedicine and material science, to avoid stress shielding, good biological activity and biological safety, and obvious advantages of lightweight.

Active Publication Date: 2022-07-26
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, there is no relevant report on the high-strength, flexible and wear-resistant aluminum oxynitride / polyphenylene sulfide bionic composite joint material prepared by using engineering plastic PPS as the matrix and wear-resistant high-toughness aluminum oxynitride as the filling material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation of aluminum oxynitride / polyphenylene sulfide biomimetic composite joint material includes the following steps:

[0041] 1) Preparation of aluminum oxynitride ceramics: prepared by carbothermic reduction method, weigh 200ml of absolute ethanol and pour it into a nylon ball mill jar (there are Φ10mm and Φ5mm Al in the jar). 2 O 3 The ball is used together with the ball as a grinding ball), and then weigh 100g of carbon black and add it to the nylon tank, and perform horizontal ball milling at 400-800r / m for 1-3h, and weigh 100g of γ-Al 2 O 3 Put it into a nylon ball mill, and mix it in a horizontal ball mill for 8-10 hours to obtain γ-Al 2 O 3 The homogeneous slurry with carbon black is poured out and dried. After drying, sieve with 200 mesh, and then the powder is agglomerated and sintered. The sintering process is two-step treatment. First, the temperature is kept at 1500 °C for 3 to 5 hours, and the temperature is raised to 1760 °C for 3 to 5 hours....

Embodiment 2

[0049] The preparation of aluminum oxynitride / polyphenylene sulfide biomimetic composite joint material includes the following steps:

[0050] (1) Preparation of Aluminium Nitride Ceramics: Same as Example 1

[0051] (2) Preparation of high-purity medical grade polyarylene sulfide: add 2500ml NMP, 21g (0.525mol) NaOH, 650g sodium sulfide into a 5L reactor, heat to 200°C under nitrogen protection, fractionate 300ml of water, add p-dichloride 661.5g of benzene, 143.6g of 4,4-dichlorodiphenylsulfone (different from example 1), reacted at 220°C for 3 hours, the first stage reaction was completed; heated to 260°C for 3 hours, cooled to 150°C and slowly added Ionized water, filtered, washed. Then use water for injection to carry out extraction and purification through Soxhlet extractor and 100 ℃, the extraction and purification time is 36 hours, remove inorganic substances and small organic molecules, and then vacuum dry at 120 ℃ for 24 hours; obtain high-purity, non-pyrogenic medi...

Embodiment 3

[0058] The preparation of aluminum oxynitride / polyphenylene sulfide biomimetic composite joint material includes the following steps:

[0059] (1) Preparation of aluminum nitride oxide ceramics: same as Example 1

[0060] (2) Preparation of high-purity medical grade polyarylene sulfide: same as Example 1

[0061] (3) Preparation process of aluminum oxynitride / polyphenylene sulfide biomimetic composite joint material: take 100g of nano-alumina oxynitride ceramic powder and 300g of medical grade polyphenylene sulfide in methylene chloride to form a uniform slurry. After drying at ℃, the mechanical splines and composite materials were prepared by Hack rheometer and 320 ℃ extrusion; by burning at 800 ℃ for 6 hours, the proportion of inorganic residues in the composite material was measured: its content was 25.5%, Consistent with the ingredient ratio, the density of the composite material is: 1.89g / cm 3 .

[0062] Performance Testing:

[0063] The aluminum oxynitride / polyphenyl...

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Abstract

The invention relates to a high-strength, flexible and wear-resistant aluminum oxynitride / polyphenylene sulfide bionic composite joint material and a preparation method, and belongs to the cross field of biomedicine and material science. The invention provides a wear-resistant bionic composite joint material, the composite joint material comprises raw materials in the following proportions: 35-90 parts by weight of polyphenylene sulfide and 10-65 parts by weight of aluminum oxynitride. In the present invention, a bionic composite joint material is prepared by compounding PPS and AlON for the first time, and the obtained compound joint material has low density, high strength, high toughness and excellent wear resistance.

Description

technical field [0001] The invention relates to a high-strength, flexible and wear-resistant aluminum nitride oxide / polyphenylene sulfide bionic composite joint material and a preparation method, and belongs to the interdisciplinary field of biomedicine and material science. Background technique [0002] Joints are the core tissues of the human body's support and movement system. They have the characteristics of high strength, flexibility, hardness, wear resistance and long-term load. These characteristics are concentrated in the hip and leg joints. Intense exercise, fatigue, disease, and osteoporosis can all cause joint damage, destruction, and loss of normal function. Therefore, a large number of joint repairs and replacements require materials that match their biomechanics, have good biocompatibility, and are structurally and functionally stable. At present, the mainstream materials for joint replacement are stainless steel and titanium alloys, which are widely used in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/44A61L27/50A61L27/54C01B21/082C08G75/0281
CPCA61L27/446A61L27/50A61L27/54C01B21/0825C08G75/0281C01P2006/80A61L2430/24A61L2300/412C08L81/02
Inventor 卢奕杉
Owner SOUTHWEST UNIV
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