Potential Application of Entangled Porous Titanium Alloy Metal Rubber in Artificial Lumbar Disc Prostheses

Ren, Zhiying; Huang, Jing‐Fei; Bai, Hongbai; Jin, Rui; Xu, Fangqi; Xu, Jie

doi:10.1007/s42235-021-0039-6

Cited by 18 publications

(9 citation statements)

References 24 publications

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“…The rubber processing performance was tested using the RPA 2000 (Rubber processing performance analyzer, Alpha Company, USA) test. During the experiment, the scanning frequency, scanning strain range, and temperature were set to 0.01 Hz, 0.28–40%, and 60 °C, respectively [ 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. The dynamic modulus G’ curve with strain was obtained.…”

Section: Methodsmentioning

confidence: 99%

Effect of the Addition of Different Amounts of Aramid Fibers on Metal Friction and Wear during Mixing

Han

Wang

et al. 2022

Polymers

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Studies show that the long-term operation of a rubber mixer results in wear at the end face of the mixer. End face wear increases the gap between the mixing chamber and the end face, resulting in leakage and a reduction in the mixing performance, affecting the final product’s quality. Therefore, it is essential to investigate the wear of the metal face during the mixing process. The present study added aramid fibers to a rubber compound using a mechanical blender to obtain a composite material. Then, the influence of the aramid fibers on the metal friction and wear of the end face of the mixer was analyzed. This article introduces the concept of the wear ratio and explores the friction and wear of metals from the perspective of formulation technology for the first time. With the addition of aramid fibers, the proportion of abrasive wear of rubber on metal decreased, and the proportion of corrosive wear increased during the mixing process; however, when the addition of aramid fibers exceeded 3 phr, the balance of abrasive wear of rubber on metal increased and the proportion of corrosive wear decreased. It was found that aramid fibers have the property of friction reduction, which reduces the wear of the rubber blend on the metal. When the amount of aramid fibers added was 3 phr, the amount of abrasion of the rubber compound on the metal was the lowest.

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Section: Methodsmentioning

confidence: 99%

Effect of the Addition of Different Amounts of Aramid Fibers on Metal Friction and Wear during Mixing

Han

Wang

et al. 2022

Polymers

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“…Following polynomial data fitting, the derivative of the fitted curve may be used to obtain Young's modulus values. 39 Hydrogels are the most popular class of polymer materials used for NP replacement/regeneration and for the vast majority of hydrogels, the stiffness increases with higher strain (strain-stiffening). 40,41 As a result, defining a single Young's modulus value for hydrogel materials is not always feasible.…”

Section: Unconfined Compression Tests-young's Modulusmentioning

confidence: 99%

“…The authors speculate that this may explain why only a few studies report material properties after fatigue loading. 11,27,39,42,43,48,60,[65][66][67] With compressive loading frequencies below 10 Hz (most commonly 5 Hz), samples are compressed to around 15%-20% strain for up to 10 million cycles. 42,43,48,60,66 It is worth noting that fatigue tests may also be performed in a confined manner.…”

Section: Unconfined Compression Tests-creep Relaxation and Fatigue Testsmentioning

confidence: 99%

“…92 Porous titanium has also been investigated as NP implants. 39,65,130 Although porous metal implants have shown excellent biocompatibility and physiologically relevant mechanical properties, debris formation and the fracture of metal filaments under various conditions still need further comprehensive investigation. 39 One novel design is the use of a balloon NP replacement systems.…”

Section: Current Biomaterials Designs: How To Mimic?mentioning

confidence: 99%

“…39,65,130 Although porous metal implants have shown excellent biocompatibility and physiologically relevant mechanical properties, debris formation and the fracture of metal filaments under various conditions still need further comprehensive investigation. 39 One novel design is the use of a balloon NP replacement systems. In a recent study by Lee et al, a balloon-like implant comprising of a polyurethane (PU) jacket and a micro-valve was generated.…”

Section: Current Biomaterials Designs: How To Mimic?mentioning

confidence: 99%

See 2 more Smart Citations

Mechanical characterization and design of biomaterials for nucleus pulposus replacement and regeneration

Honiball

et al. 2023

J Biomedical Materials Res

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Biomaterials for nucleus pulposus (NP) replacement and regeneration have great potential to restore normal biomechanics in degenerated intervertebral discs following nucleotomy. Mechanical characterizations are essential for assessing the efficacy of biomaterial implants for clinical applications. While traditional compression tests are crucial to quantify various modulus values, relaxation behaviors and fatigue resistance, rheological measurements should also be conducted to investigate the viscoelastic properties, injectability, and overall stability upon deformation. To recapitulate the physiological in vivo environment, the use of spinal models is necessary to evaluate the risk of implant extrusion and the restoration of biomechanics under different loading conditions. When designing devices for NP replacement, injectable materials are ideal to fully fill the nucleus cavity and prevent implant migration. In addition to achieving biocompatibility and desirable mechanical characteristics, biomaterial implants should be optimized to avoid implant extrusion or re‐herniation post‐operatively. This review discusses the most commonly used testing protocols for assessing mechanical properties of biomaterial implants and serves as reference material for enabling researchers to characterize NP implants through a unified approach whereby newly developed biomaterials may be compared and contrasted to existing devices.

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Stiffness Constitutive Characteristics of Elastic Disordered Microporous Metal Rubber Considering Temperature Effects

Wang,

Ren,

Shi

et al. 2023

Adv Eng Mater

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Elastic Disordered Microcellular Metal Rubber (EDMMR) is a lightweight metal material widely employed for damping or support in high‐temperature environments, addressing the limitations of traditional polymer rubbers. In this study, three sets of solid finite element models of EDMMR with different relative densities were developed using Virtual Manufacturing Technology (VMT). Thermal‐mechanical coupled finite element simulations explored the dynamic evolution of two typical spatial topological structures in the material’s microstructure: unit contact characteristics and angle distribution under temperature variations. Results indicate that the mechanical performance of the material under high‐temperature loads exhibits distinct spatial topological structures compared to those at room temperature. At 100°C, 200°C, and 300°C, the material experiences internal stress distributions of up to 0.5 MPa, 1.2 MPa, and 1.8 MPa, respectively, due to expansion. Additionally, during the initial loading stage, stress differentials of approximately 0.4 MPa are observed between different temperatures due to boundary effects. Furthermore, the study investigates the probability density distribution of typical microstructural combinations of EDMMR along the forming direction based on VMT, enhancing the generality of the constitutive model. Finally, three groups of EDMMR samples with different relative densities were prepared using standardized processes, and the model was validated through high‐temperature quasi‐static compression experiments.This article is protected by copyright. All rights reserved.

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Potential Application of Entangled Porous Titanium Alloy Metal Rubber in Artificial Lumbar Disc Prostheses

Cited by 18 publications

References 24 publications

Effect of the Addition of Different Amounts of Aramid Fibers on Metal Friction and Wear during Mixing

Effect of the Addition of Different Amounts of Aramid Fibers on Metal Friction and Wear during Mixing

Mechanical characterization and design of biomaterials for nucleus pulposus replacement and regeneration

Stiffness Constitutive Characteristics of Elastic Disordered Microporous Metal Rubber Considering Temperature Effects

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