Tribological properties of polymer-based composites with nanoscaled fillers

Hu, Zhanqi; Zhang, Q.; Jia, Zheng; Yang, Yong; Ma, Jian; Qi, Xiaowen

doi:10.1016/b978-0-08-100079-3.00020-x

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…Due to the special structure, which includes a high specific surface area and owning an abundant number of hydroxyl groups on the surface, nanosilica presents some unique physical and chemical properties [1]. Dispersing the nanosilica in polymer materials can obviously improve their mechanical properties as well as others such as their thermodynamic properties, chemical stability, corrosion resistance properties, friction resistance, and biocompatibility [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effects of Nanosilica on Mechanical and Tribological Properties of Polyvinyl Alcohol/Polyacrylamide Polymer Composites for Artificial Cartilage from an Atomic Level

et al. 2019

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Due to the superior performances of nanosilica particles, this research has been designed to study their effects on the mechanical and trigological properties of a PVA/PAM polymer composite by a molecular dynamics simulation method. To realize the research objectives mentioned above, the molecular models of amorphous cells and sandwiched friction models for pure polyvinyl alcohol (PVA)/polyacrylamide (PAM) (component weight ratio is 1:1) and PVA/PAM/nanosilica (component weight ratio is 5.75:5.75:1) polymer composites were constructed and simulated, respectively. The simulation results of the mechanical properties show increases about 31.6% in the bulk modulus, 53.1% in the shear modulus, and 50.1% in the Young’s modulus by incorporating a nanosilica particle into a pure PVA/PAM polymer composite. Meanwhile, the changes in Cauchy pressure, B/G ratio, and Poisson’s ratio values indicate that incorporating a nanosilica particle into pure PVA/PAM weakened the ductility of the composite. Incorporating a nanosilica particle into a pure PVA/PAM composite also showed a decrease about 28.2% in the abrasion rates and relative concentration distributions of polymer molecules in the final friction models. Additionally, the binding energy and the pair correlation functions between a nanosilica particle and the polymer chains in a cubic cell demonstrate that incorporating nanosilica into PVA/PAM polymer composites improves the internal binding strength between different components through the forming hydrogen bonds. As a result, the mechanical and tribological properties of PVA/PAM polymer composites can be enhanced by incorporating nanosilica particles.

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Section: Introductionmentioning

confidence: 99%

Evaluating the Effects of Nanosilica on Mechanical and Tribological Properties of Polyvinyl Alcohol/Polyacrylamide Polymer Composites for Artificial Cartilage from an Atomic Level

et al. 2019

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“…Nylon 66 composite material with CaCO3 nanoparticles reduces elongation from 50% to 10%. As elongation decreases, there is an increase in the hardness (10) (11) . Si3N4 increased the tensile strength of the material.…”

Section: Introductionmentioning

confidence: 99%

Characterization of mechanical and wear properties of ABS/SiO2 nanoparticles

Kumar¹,

Reddy²

2020

IJST

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Objective: In this present work, the SiO2 nanoparticles as filler materials and ABS as a matrix material taken for the injection molding process to prepare the specimens, after that, to study the enhancement of mechanical properties and wear performance of composite materials. Method/Findings: SiO2 nano particles are added to Acrylonitrile Butadiene styrene(ABS) polymer composites at various weight fractions. It is also found that tensile strength, hardness, and wear properties improved in reinforcement. A pin-on-disc type friction and wear monitor (ASTM G99) was employed to evaluate wear behavior of ABS/SiO2 polymer composites. In this experimental study, the input process parameters such as load, sliding distance, and speed are considered and optimized for the composite materials’ properties. Tensile tests and wear tests were conducted to examine, and the properties of the material were studied. Morphology of the fractured material was studied using SEM analysis. The wear debris observed to explore the flacks and groves of the content during wear test for this study Orthogonal array (L9) and control parameters. Applications/Improvements : The significant contributions of this work are the decrease of ultimate strength with increasing content of SiO2 in the composites, and the sliding speed conversed to 45.51% of the wear rate variation. Mechanical and wear properties of ABS/SiO2 nanoparticles polymer composites were studied further. Keywords: ABS; SiO2 Nanoparticles; tensile; hardness; wear; SEM

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Enhanced tribological properties of polymer composites by incorporation of nano-SiO 2 particles: A molecular dynamics simulation study

Wang

et al. 2017

Computational Materials Science

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Tribological properties of polymer-based composites with nanoscaled fillers

Cited by 4 publications

References 33 publications

Evaluating the Effects of Nanosilica on Mechanical and Tribological Properties of Polyvinyl Alcohol/Polyacrylamide Polymer Composites for Artificial Cartilage from an Atomic Level

Evaluating the Effects of Nanosilica on Mechanical and Tribological Properties of Polyvinyl Alcohol/Polyacrylamide Polymer Composites for Artificial Cartilage from an Atomic Level

Characterization of mechanical and wear properties of ABS/SiO2 nanoparticles

Enhanced tribological properties of polymer composites by incorporation of nano-SiO 2 particles: A molecular dynamics simulation study

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