Mechanical and Tribological Characteristics of PMMA Reinforced by Natural Materials

The main objective of the research is to investigate the organic additives if they are from animal or vegetable source and inorganic, mineral or non-metallic additives for two different types of resin matrix, which are epoxy and polyester and presenting different studies in finding the mechanical properties of the composite materials produced as a result of mixing these materials with different additives and proportions after conducting Several mechanical tests such as tensile strength, bending strength, impact resistance, and hardness resistance, and then conclude and extract what many researchers did.

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“…The results indicated that PMMA samples filled with 8.0 % corn cobs and 6.0 % miswak recorded a good enhancement. [4] Fig. 1…”

Section: Natural Reinforces (Powder Fibers)mentioning

confidence: 99%

A review on the development of mechanical properties of polyester /epoxy resins reinforced with different powders /fibers materials

Ahmed

Gader

2022

SVU-International Journal of Engineering Sciences and Applicati

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“…Nano composites by filling Nano dimension materials as filler. This has showed better mechanical, thermal, optical and electronic properties in comparison with that of macro composite because of molecular level interaction between filler and polymer, [18 -27] The effect of multi-walled carbon nanotubes (MWCNTs) on the hardness and tribological behavior (friction and wear) of polymethyl methacrylate (PMMA) reinforced by MWCNTs is studied, [28][29][30][31][32] The aim of this study is to reinforce PMMA with MWCNT's. The hypothesis of the study is that the addition of MWCNTs to commercially available cured denture base acrylic resin can significantly enhance its mechanical properties while making them flexible.…”

Section: Recently Researchers Across the World Have Focused Their Att...mentioning

confidence: 99%

Influence of Multi-Walled Carbon Nanotubes Content on the Mechanical Properties of Cold and Hot Cured Acrylic Resin for Denture Base.

2022

Journal of the Egyptian Society of Tribology

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The main objective of this work is to investigate the effect of multi-walled carbon nanotubes (MWCNTs) on the mechanical properties of polymethyl methacrylate (PMMA) reinforced by MWCNTs of 0.1, 0.2, 0.3, 0.4 and 0.5 wt. % contents. The mechanical properties investigated in the present study are compressive strength, apparent modulus of elasticity, modulus of resilience, modulus of toughness and ductility at yield. PMMA is prepared at both hot and cold acrylic resins to be used as denture base materials. Compression test was considered as a useful tool to describe the mechanical properties of the PMMA/ MWCNTs tested composites. The tests have been carried out on a digital controlled universal testing machine.Based on the experiments, it is shown that the mechanical properties of the cold PMMA were higher than that measured for the hot at 0 wt. %, MWCNTs, while at 0.1 wt. %, the mechanical properties of the hot MWCNTs/PMMA composites were higher than the cold ones. On the other hand, it was found that after 0.1 wt. %, with increasing MWCNTs content the mechanical properties decreased gradually for both cold and hot composites. The improvement in the strength at 0.1 wt. % may be due to the interfacial shear strength between nanofiller and matrix that was relatively high due to formation of cross links or supra molecular bonding which cover or shield the nanofiller that in turn prevent propagation of crack. From this study, it can be concluded that hot cured composites are better than cold cured composites as denture base materials. KEYWORDSPolymethyl methacrylate (PMMA), cold PMMA composites, hot PMMA composites multi-walled carbon nanotubes (MWCNTs), mechanical properties.

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“…Recently, a lot of emphasis on developing new biomedical materials has been given to achieve reliable materials that could be used in biomedical applications [ 7 , 8 ]. Initially, hip joint replacement was used with elderly people; however, nowadays, the technique is used with adults and young people who may be emerged from accidents.…”

Section: Introductionmentioning

confidence: 99%

Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications

Alnaser

Abdo

et al. 2023

Nanomaterials

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Biomedical applications, such as artificial implants, are very significant for the disabled due to their usage in orthopedics. Nevertheless, available materials in such applications have insufficient mechanical and tribological properties. The current study investigated the mechanical and tribological properties of a biomedical metallic material, magnesium (Mg), after incorporating titanium dioxide nanofibers (TiO2) with different loading fractions. The TiO2 nanofibers were synthesized using the electrospinning technique. The ball-milling technique was utilized to ensure the homogenous distribution of TiO2 nanofibers inside the Mg matrix. Then, samples of the mixed powder with different loading fractions of TiO2 nanofibers, 0, 1, 3, 5, and 10 wt.%, were fabricated using a high-frequency induction heat sintering technique. The physicomechanical and tribological properties of the produced Mg/TiO2 nanocomposites were evaluated experimentally. Results showed an enhancement in mechanical properties and wear resistance accompanied by an increase in the weight fraction of TiO2 nanofibers up to 5%. A finite element model was built to assess the load-carrying capacity of the Mg/TiO2 composite to estimate different contact stresses during the frictional process. The finite element results showed an agreement with the experimental results.

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Mechanical and Tribological Characteristics of PMMA Reinforced by Natural Materials

Cited by 13 publications

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A review on the development of mechanical properties of polyester /epoxy resins reinforced with different powders /fibers materials

A review on the development of mechanical properties of polyester /epoxy resins reinforced with different powders /fibers materials

Influence of Multi-Walled Carbon Nanotubes Content on the Mechanical Properties of Cold and Hot Cured Acrylic Resin for Denture Base.

Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications

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