Structure and mechanical properties of PMMA/GF/Perlon composite for orthopedic prostheses

Alimi, Latifa; Chaoui, Kamel; Boukhezar, Skander; Sassane, Nacira; Hamed, Mohamed; Temam, Taher Guettaf

doi:10.1016/j.matpr.2020.07.085

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…18 Another factor is that fiberglass is evenly distributed in the matrix, contributing to the structural homogeneity and the quality of its mechanical qualities. 19…”

Section: Discussionmentioning

confidence: 99%

“…18 Another factor is that fiberglass is evenly distributed in the matrix, contributing to the structural homogeneity and the quality of its mechanical qualities. 19 Dacron felt has the lowest R a value with 0.881 mm but the highest overall surface roughness due to its inconsistency and the highest R a value of 9.66 mm. The condition occurs due to the difficulty in fabricating the socket as Dacron felt is not in the stockinette form.…”

Section: Overall Averagementioning

confidence: 91%

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Surface profile of laminated transfemoral socket fabricated with different types of reinforcement materials

Zainuddin

Razak

Karim

2023

Proc Inst Mech Eng H

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Composite materials used in the prosthetic and orthotic fields have helped improve the fabrication of sockets. Laminated sockets proved to be stronger than conventional thermoplastic sockets. The internal surface of a laminated socket plays an important role in patient comfort and is influenced by the material used to fabricate the socket. This study analyzes the internal surface profile of five different materials, that is, Dacron felt, fiberglass, Perlon stockinette, polyester stockinette, and elastic stockinette. All sockets were fabricated using an acrylic resin mix with hardener powder at a ratio of 100:3. The internal surface of the sockets was tested using the Mitutoyo SurfTest SJ-210 series for 20 trials. The overall Ra values were 2.318, 2.380, 2.682, 2.722, and 3.750 µm for fiberglass, polyester, Perlon, elastic stockinette, and Dacron felt. Dacron felt yielded the lowest Ra value, thus, producing the smoothest internal surface but requiring high skill and the correct technique during the fabrication of a laminated socket. Fiberglass is considered the best material for the internal surface despite not producing the lowest value individually but overall is the lowest and most consistent, indicating that it is easy to use to laminate prosthetic sockets.

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“…18 Another factor is that fiberglass is evenly distributed in the matrix, contributing to the structural homogeneity and the quality of its mechanical qualities. 19…”

Section: Discussionmentioning

confidence: 99%

Section: Overall Averagementioning

confidence: 91%

Surface profile of laminated transfemoral socket fabricated with different types of reinforcement materials

Zainuddin

Razak

Karim

2023

Proc Inst Mech Eng H

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“…Prosthetic limbs-synthetic appendages designed to emulate the aesthetics and functionality of lost limbs-necessitate materials that are not only lightweight and robust but also cost-effective, with a socket as the critical interface for load transference from the residual limb to the prosthetic [15]. The prevalence of amputations, propelled not solely by conflictinduced injuries but increasingly by age-related ailments such as diabetes and peripheral vascular diseases, has accentuated the role of prosthetics in contemporary healthcare [16].…”

Section: Introductionmentioning

confidence: 99%

Study Mechanical Properties for Polymer Composite Reinforced by Carbon Fibers and Copper Oxide Particles (CuO) Used in Make Prosthetic Limb

Merie,

Salih

2024

RCMA

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In the quest to advance the material science underpinning prosthetic limb technology, this study explores the mechanical fortification of unsaturated polyester-based composites via the incorporation of unidirectional carbon fibers and micro-scale copper oxide (CuO) particulates. The mechanical attributes scrutinized include hardness, impact resistance, compressive and tensile strengths, and flexural robustness. The fabrication process entailed manual molding techniques to yield homogenized composite samples. It was observed that the integration of carbon fibers markedly augmented the composite's mechanical performance. Specifically, the carbon fiber-reinforced specimens demonstrated a maximum hardness of 85.4 N/mm 2 , an impact strength cresting at 6.27 KJ/m 2 , a compressive strength peaking at 24.5 MPa, a tensile strength apex of 20 MPa, and a superior bending strength of 39.09 MPa. Conversely, the incorporation of CuO particles yielded mixed outcomes. While there was a notable increment in hardness strength to 83.5 N/mm 2 and a modest rise in impact strength to 0.70 KJ/m 2 , a diminution was witnessed in compressive, tensile, and bending strengths, which dwindled to 8.33 MPa, 5.07 MPa, and 9.54 MPa, respectively. The findings underscore the efficacy of carbon fiber reinforcements in significantly bolstering the structural integrity of composite materials destined for prosthetic applications, outperforming the enhancements provided by CuO particles. This research underscores the potential for carbon fiber to act as a pivotal reinforcement agent in the development of highperformance prosthetic limbs, providing a robust framework for future material innovation. The study's implications extend to the design of lightweight, durable prosthetic components that can endure the multifaceted demands placed on them during use. Future investigations could pivot towards optimizing fiber-matrix interfaces and exploring hybrid reinforcement strategies to further push the boundaries of prosthetic material capabilities.

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“…15 Although they combine the greatest qualities of each distinct component, hybrids function better than their individual elements and have the potential to make prostheses for amputees. 16 To increase its structural, conductive, and thermal properties, polymers can be reinforced with substances like continuous-flax, 17 Basalt fiber, 18 SWCNTs, MWCNTs, [19][20][21] and CF. [22][23][24][25][26][27][28][29] Carboncontaining reinforcing polymer nano-composites have a significant positive impact on the physical and mechanical characteristics of specimens.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon fibers' rigidity encourages fracture toughness and weak shock resistance 15 . Although they combine the greatest qualities of each distinct component, hybrids function better than their individual elements and have the potential to make prostheses for amputees 16 . To increase its structural, conductive, and thermal properties, polymers can be reinforced with substances like continuous‐flax, 17 Basalt fiber, 18 SWCNTs, MWCNTs, 19–21 and CF 22–29 .…”

Section: Introductionmentioning

confidence: 99%

Augmenting the flexural strength of polymer composites for stronger and more durable prosthetic sockets

2023

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The objective of this study was to develop a novel approach to enhance the flexural strength of polymer composites used in the fabrication of prosthetic sockets. The effects of control factors such as nozzle hole diameter and internal filling pattern on the flexural behavior of three distinct composite materials were examined: poly lactic acid reinforced with carbon fiber (PLA‐CF), polyethylene terephthalate glycol reinforced with carbon fiber (PETG‐CF), and PLA reinforced with multi‐walled carbon nanotubes (PLA‐MWCNTs), fabricated through fused filament fabrication. During study, samples of each composite material were created using 3D printing technology and underwent flexural testing. Fractography was then performed on the samples, and statistical analysis techniques, including Taguchi's method and response surface methodology (RSM) were used to analyze the results. The study found that the flexural behavior of the prosthetic socket materials varied significantly based on the control factors used. Specifically, a nozzle hole diameter of 0.6 mm and a rectilinear internal filling pattern with PLA‐MWCNTs composite material had the highest flexural strength among the three materials tested. Through this study, the authors demonstrated the potential to improve the design and manufacture of prosthetic sockets, which can lead to better functionality and comfort for the user. The low‐cost transtibial prosthetic socket developed in this study using the optimized composite material and 3D printing technology shows promise as an application in the field of prosthetics. This research can pave the way for the development of even stronger and more durable prosthetic sockets in the future.

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Structure and mechanical properties of PMMA/GF/Perlon composite for orthopedic prostheses

Cited by 8 publications

References 16 publications

Surface profile of laminated transfemoral socket fabricated with different types of reinforcement materials

Surface profile of laminated transfemoral socket fabricated with different types of reinforcement materials

Study Mechanical Properties for Polymer Composite Reinforced by Carbon Fibers and Copper Oxide Particles (CuO) Used in Make Prosthetic Limb

Augmenting the flexural strength of polymer composites for stronger and more durable prosthetic sockets

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