2020
DOI: 10.1002/app.49276
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Hydroxyapatite/ultra‐high molecular weight polyethylene nanocomposites fabricated by in situ hydrothermal synthesis for wear‐resistance and friction reduction

Abstract: In situ filling raises a possibility to restrain the agglomeration of nanomaterials in macromolecule matrices, which usually is encountered in the nanocomposites prepared by a mechanical mixing method. In this work, the nanocomposites of ultra‐high molecular weight polyethylene (UHMWPE) filled with nanosized hydroxyapatite (HAP) were fabricated by an in situ hydrothermal method. The fabricated HAP/UHMWPE nanocomposites exhibited a high dispersion degree of HAP nanoparticles (NPs) and a marked improvement in st… Show more

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Cited by 8 publications
(4 citation statements)
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“…The loss of the continuity of the matrix due to the filling of the inorganic HAP might be responsible for the decrease in its strength and toughness according to our previous work. [ 47,53 ] It is also important to note that there was a very low loss in strength and toughness, which is in line with the excellent dispersity and reliable interface adhesion.…”
Section: Resultsmentioning
confidence: 68%
See 1 more Smart Citation
“…The loss of the continuity of the matrix due to the filling of the inorganic HAP might be responsible for the decrease in its strength and toughness according to our previous work. [ 47,53 ] It is also important to note that there was a very low loss in strength and toughness, which is in line with the excellent dispersity and reliable interface adhesion.…”
Section: Resultsmentioning
confidence: 68%
“…The first two can be assigned to asymmetric and symmetric stretching vibrations of CF 2 groups of PTFE, and the two left should be attributed to bending and deforming vibration modes of C-F bonds in the matrix (Figure 4B). [47,48] There were no IR absorptions that arise from the HAP and oleic acid molecules in the in situfabricated nanocomposites of PTFE and HAP NWs, which can be ascribed to a low filling concentration (0.5%) (Figure 4B). To identify HAP in the nanocomposites, 31 P MAS nuclear magnetic resonance (NMR) spectra of the HAP nanocomposites synthesized via different ethanol/water ratios were performed and are included in Figure S2, Supporting Information.…”
Section: Structural Properties Of Hydroxyapatite Nanowires and Their ...mentioning
confidence: 99%
“…[1][2][3][4][5] UHMWPE stands out as an effective coating material owing to its low cost, facile coating process, low friction coefficient, and exceptional wear resistance. 6 This versatile material finds its application across numerous domains, ranging from orthopedic implant replacements 7 and artificial transplantation 8 to the fishery industry, 9 climbing equipment, 10 piping, 11 and machine components. 12 Despite its outstanding qualities compared to traditional polymers, UHMWPE suffers from inherent limitations in terms of elastic modulus and tensile strength, thereby restricting its full potential within structural biomedical applications.…”
Section: Introductionmentioning
confidence: 99%
“…Ultra-high molecular weight polyethylene (UHMWPE) has distinguished mechanical properties as well as wear resistance at room temperature, [1][2][3][4] and at the same time, its glass transition temperature is extremely low, so its excellent mechanical properties can still be maintained under low-temperature conditions. 5 In addition, the composite materials applied to cryogenic engineering may crack at ultra-low temperature after long-term service due to the difference in thermal expansion coefficient, [6][7][8] but UHMWPE can effectively avoid this problem since it is a homopolymer.…”
Section: Introductionmentioning
confidence: 99%