scholarly journals Synthesis and properties of bone cement based on poly(methyl methacrylate) reinforced by organo-clay

2016 ◽  
Vol 19 (4) ◽  
pp. 221-231
Author(s):  
Uyen Thi Diem Truong ◽  
Tam Thanh Mai ◽  
Nhan Thuc Chi Ha ◽  
An Hai Thien Phung ◽  
Vi Thi Vi Do ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Bone Cement ◽  
Emulsion Polymerization ◽  
Poly Methyl Methacrylate ◽  
Weight Percentage ◽  
Pickering Emulsion Polymerization ◽  
Artificial Bones ◽  
Nano Clay ◽  
Organo Clay

Poly(methyl methacrylate) (PMMA) and nanocomposites PMMA/nano-clay were widely applied in many different fields. Bone cement is one of the important application which makes artificial bones and joints. The purpose of our study is the improvement of properties of PMMA. Therefore, organo-clay modified by polyethylene oxide (PEO) was used to reinforce the PMMA resin. In order to increase the interaction between PMMA and organo-clay, the in-situ emulsion polymerization has been used to synthesize nanocomposites. Accordingly, nanocomposites with the weight percentage of organo-clay of 1 %, 3 %, 5 %, 7 % increase the thermal and mechanical properties compared to PMMA. These were evidence of the good interaction between PMMA and organo-clay. In addition, PMMA/5 % MMT-PEO nanocomposite is also synthesized by in-situ Pickering emulsion polymerization [3] to compare with the method of emulsion polymerization.

Facile preparation of poly(methyl methacrylate)/MoS2 nanocomposites via in situ emulsion polymerization

2014 ◽  
Vol 126 ◽  
pp. 159-161 ◽  
Author(s):  
Keqing Zhou ◽  
Jiajia Liu ◽  
Biao Wang ◽  
Qiangjun Zhang ◽  
Yongqian Shi ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Emulsion Polymerization ◽  
Poly Methyl Methacrylate ◽  
Facile Preparation ◽  
In Situ Emulsion Polymerization

scholarly journals RAFT-mediated Pickering emulsion polymerization with cellulose nanocrystals grafted with random copolymer as stabilizer

RSC Advances ◽  
2018 ◽  
Vol 8 (50) ◽  
pp. 28660-28667 ◽  
Author(s):  
Liangjiu Bai ◽  
Xinyan Jiang ◽  
Beifang Liu ◽  
Wenxiang Wang ◽  
Hou Chen ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Emulsion Polymerization ◽  
Cellulose Nanocrystals ◽  
Random Copolymer ◽  
Pickering Emulsion ◽  
Poly Methyl Methacrylate ◽  
Pickering Emulsion Polymerization

A RAFT-mediated Pickering emulsion with cellulose nanocrystals grafted with a random copolymer was used for the preparation of poly(methyl methacrylate) particles..

scholarly journals Influence of HRGO Nanoplatelets on Behaviour and Processing of PMMA Bone Cement for Surgery

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2027
Author(s):  
Jaime Orellana ◽  
Ynés Yohana Pastor ◽  
Fernando Calle ◽  
José Ygnacio Pastor
Keyword(s):  
Graphene Oxide ◽  
Methyl Methacrylate ◽  
Bone Cement ◽  
Reduced Graphene Oxide ◽  
Sintering Temperature ◽  
Structural Function ◽  
Mechanical And Thermal Properties ◽  
Poly Methyl Methacrylate ◽  
Pmma Bone Cement ◽  
Reduced Graphene

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.

Sign in / Sign up

Export Citation Format

Share Document