RT Journal Article
T1 Influence of HRGO Nanoplatelets on Behaviour and Processing of PMMA Bone Cement for Surgery
A1 Orellana, Jaime
A1 Pastor, Ynés Yohana
A1 Calle, Fernando
A1 Pastor Caño, Jose Ygnacio
AB Bone cement, frequently based on poly (methyl methacrylate), is commonly used in different arthroplasty surgical procedures and its use is essential for prosthesis fixation. However, its manufacturing process reaches high temperatures (up to 120 °C), producing necrosis in the patients’ surrounding tissues. To help avoid this problem, the addition of graphene could delay the polymerisation of the methyl methacrylate as it could, simultaneously, favour the optimisation of the composite material’s properties. In this work, we address the effect of different percentages of highly reduced graphene oxide with different wt.% (0.10, 0.50, and 1.00) and surface densities (150, 300, 500, and 750 m2/g) on the physical, mechanical, and thermal properties of commercial poly (methyl methacrylate)-based bone cement and its processing. It was noted that a lower sintering temperature was achieved with this addition, making it less harmful to use in surgery and reducing its adverse effects. In contrast, the variation of the density of the materials did not introduce significant changes, which indicates that the addition of highly reduced graphene oxide would not significantly increase bone porosity. Lastly, the mechanical properties (strength, elastic modulus, and fracture toughness) were reduced by almost 20%. Nevertheless, their typical values are high enough that these new materials could still fulfil their structural function. In conclusion, this paper presents a way to control the sintering temperature, without significant degradation of the mechanical performance, by adding highly reduced graphene oxide so that local necrosis of bone cement based on poly (methyl methacrylate) used in surgery is avoided
PB MDPI
SN 2073-4360
YR 2021
FD 2021-06-21
LK https://hdl.handle.net/20.500.14352/7411
UL https://hdl.handle.net/20.500.14352/7411
LA eng
NO This work was supported by the Spanish Government (PID2019-106631GB-C44, MICINN/FEDER, UE) and Comunidad de Madrid Government (P2018/NMT-4511 NMAT2D-CM, P2018/NMT-4411 ADITIMAT-CM, FEDER-UE). J. Orellana is thankful for the scholarship provided by UPM and the Ministerio de Educación, Cultura y Deporte of Spain (FPU17/02035). Y.Y. Pastor thanks J. Marco (UCM) for his continuous encouragement.
NO Unión Europea
NO Ministerio de Ciencia e Innovación (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 8 abr 2025