Mechanical and Tribological Properties of Zeolite-reinforced UHMWPE Composite for Implant Application

Chang, Boon Peng; Akil, Hazizan Md; Nasir, Ramdziah Md.

doi:10.1016/j.proeng.2013.12.152

Cited by 49 publications

(22 citation statements)

References 17 publications

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“…They possess permanent negative charges in their structural framework, which has the capability of adsorbing or rejecting molecules, thus they are widely used in catalysis, separation, adsorption and ion-exchange (Wang et al 2015). Zeolites can be used to reinforce composites or as agents to improve their mechanical properties and crystallinity behavior of polymer (Chang et al 2013). The addition of zeolites to natural-flour-filled thermoplastic polymer composites is an effective method of reducing their odor and VOC emissions without any degradation of their mechanical and thermal properties (Ki and Kim 2008).…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical and thermal properties of wood/zeolite/plastic hybrid composites

Kaymakçı

Güleç

Hosseinihashemi

et al. 2017

Maderas, Cienc. tecnol.

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Effect of zeolite content on the physical, mechanical and thermal properties of wood plastic composites was investigated in this study. To meet this objective, pine wood flour (0, 10, 20, 30, 40, 50 wt%) with compatibilizing agent, zeolite (0, 10, 20, 30, 40, 50 wt%), and polypropylene were compounded in a twin screw co-rotating extruder. The mass ratio of the wood flour to polypropylene was 50/50 (w/w) in all compounds. Test specimens were produced using injection molding machine from the pellets. Physical and mechanical, and thermal (Thermogravimetry Analysis/Differential Scanning Calorimetry) properties of the wood plastic composites were determined. The water absorption and thickness swelling properties of wood plastic composites improved with increasing zeolite content. The flexural and tensile properties of the wood plastic composites decreased with increasing zeolite content. All the wood plastic composites provided the values of flexural strength (58,4-72,9 MPa) and flexural modulus (2718-5024 MPa) that were well over the requirement by the standard specified in ASTM D 6662. The mass loss rates values of wood plastic composites increased with increasing zeolite contents. The Differential Scanning Calorimetry analysis showed that the melt crystallization enthalpies and degree of crystallization of wood plastic composites decreased with increasing zeolite content. The decrease in the T c and X c indicated that zeolite was the poor nucleating agent for the wood plastic composites.

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Section: Introductionmentioning

confidence: 99%

Physical, mechanical and thermal properties of wood/zeolite/plastic hybrid composites

Kaymakçı

Güleç

Hosseinihashemi

et al. 2017

Maderas, Cienc. tecnol.

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“…It will lead increasing nucleation sides in the polymer matrix an nucleation agent. Increasing nucleation consequently will improve the mechanical properties of the polymer [21,22]. SEM-EDS analysis which was performed to determine the presence of HAp and where it taken place in the matrix, results were presented in Figure 5(a-b).…”

Section: Resultsmentioning

confidence: 99%

An Investigation on UHMWPE-HAp Composites Manufactured by Solution-Gelation Method

Efe¹,

Ibrahim²,

Türk

et al. 2020

Sakarya University Journal of Science

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In this study, HAp reinforcement into UHMWPE matrix having 1.0 % wt. mass and its effects on microstructural and mechanical properties of the UHMWPE composites were investigated. UHMWPE composites reinforced with 0.5, 1 and 2.0 wt. % nano HAp powders, respectively were successfully produced by solution and gelation method. SEM studies showed that HAP nano particles were homogenously distributed into UHMWPE matrix and good cross-linked with the matrix. SEM-map EDS analysis confirmed SEM. FTIR results revealed that HAp incorporation into matrix was conducted and crystallization of UHMWPE increased by increment in amount of HAp results in deepening crystallization peaks at nearby 500 and 1500 cm -1 . DSC results, which is useful technique to determine the variation of melting point and crystallization ratio of UHMWPE composites, indicated that there was no remarkable change in melting points of composites, while crystallinity of the samples generally showed slight increase by increasing amount of nano HAp particles. The tensile test instrument was utilized to determine elastic modulus of the samples and their elastic modulus were raised from 1050 to 1900 MPa with higher HAp reinforcement. It can be concluded that UHMWPE-1 % wt. HAp composites have promising results by being paired with crystallinity and elastic modulus.

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“…Um dies zu ermöglichen, werden die eingesetzten Kunststoffe mit Verstärkungsstoffen, internen Schmiermitteln und synergetisch wirkenden Funktionszusätzen auf die tribologischen Beanspruchungen angepasst. Die Auswirkungen diverser gebräuchlicher Füll-und Verstärkungsstoffe auf die tribologischen Eigenschaften von Kunststoffcompounds sind in der Literatur ausführlich beschrieben [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Einführungunclassified

Temperaturen in einfachen Gleitkontakten numerisch abschätzen

Ecke¹

2020

Zeitschrift Kunststofftechnik

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Temperaturen in einfachen Gleitkontakten numerisch abschätzen Bei der Verwendung von Kunststoffen in tribologischen Anwendungen hat die aus der Reibungswärme resultierende Temperaturverteilung großen Einfluss auf das Systemverhalten. Gerade die immer kompakteren Bauweisen führen zu höheren spezifischen Lasten und damit zu höheren Temperaturen. Daher ist das Wissen über die Temperaturverteilung in kunststoffbasierten tribologischen Systemen unter unterschiedlichen Lastbedingungen wesentlich für die Auslegung derartiger Systeme. Die Temperaturen in der tribologischen Kontaktfläche sind jedoch messtechnisch nicht zugänglich. Dieser Beitrag beschreibt zwei numerische Ansätze zur Berechnung von Temperaturen in tribologischen Kontakten und vergleicht diese mit gängigen analytischen Methoden. Dabei wird besonderes Augenmerk auf die Ermittlung geeigneter Randbedingungen für die Finite-Elemente-Modelle gelegt. Damit soll dem Prüfingenieur ein Hilfsmittel zur Bestimmung der mittleren Temperaturen in der Gleitebene unter vorgegebenen Betriebsbedingungen an die Hand gegeben werden. Gleichzeitig soll dem Wissenschaftler die Möglichkeit eröffnet werden, Simulationen mit prädiktiver Zielsetzung durchzuführen. Numerical estimation of temperatures in simple sliding contacts The performance of polymer-based materials in tribological applications is strongly influenced by the increase in temperature due to frictional heat. Therefore, detailed knowledge regarding the temperature distribution is crucial in the design of polymer-based tribological systems. However, a measurement of temperatures in the tribological interface is not feasible. This article describes two numerical approaches for calculating contact temperatures. The results are compared to those obtained by common analytical methods. Particular attention was focused on determining suitable boundary conditions for the finite element models.

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Mechanical and Tribological Properties of Zeolite-reinforced UHMWPE Composite for Implant Application

Cited by 49 publications

References 17 publications

Physical, mechanical and thermal properties of wood/zeolite/plastic hybrid composites

Physical, mechanical and thermal properties of wood/zeolite/plastic hybrid composites

An Investigation on UHMWPE-HAp Composites Manufactured by Solution-Gelation Method

Temperaturen in einfachen Gleitkontakten numerisch abschätzen

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