Investigation of hardness &amp; tribology behavior of Epoxy and Sio2 composite: An experimental study

Bharadwaja, K.; Rao, Sreeram Srinivasa; Rao, Thella Babu

doi:10.1016/j.matpr.2020.12.653

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…This phenomenon can be explained by formation of agglomerates and clusters of silica particles. These results are consistent with morphology analysis (Figure 2) [23,24]. Table 3 presents flexural properties of the composites.…”

Section: Mechanical Propertiessupporting

confidence: 88%

Modification of photosensitive resin with fumed silica

Zhao,

Song,

Chu

et al. 2023

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The effect of fumed silica (3 and 5 wt%) on the structure, viscosity, tensile and flexural properties, and hardness of photosensitive acrylic resins used for 3D printing was investigated. The optimal set of functional properties was obtained with a silica content of 3 wt%. In this case, the resin had the appropriate viscosity, degree of cross-linking, hardness (90 ShD), tensile strength (47 MPa) and flexural strength (96 MPa). The obtained results indicate that the addition of silica effectively reinforce the resin.

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Section: Mechanical Propertiessupporting

confidence: 88%

Modification of photosensitive resin with fumed silica

Zhao,

Song,

Chu

et al. 2023

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“…On curing, the epoxy resin forms a network with diferent curing elements like anhydrides, amines, thiols, etc. [2][3][4][5][6][7][8]. Te characteristic makes epoxy resin more efective in diferent usages like coating for protection, electronic usage, fooring purposes, painting etc.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical Properties for Epoxy Resin in Nano Composite Diffusion

Bharadwaja

Rao

et al. 2023

Advances in Materials Science and Engineering

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This research work developed a method for the analysis of epoxy matrix nanocomposites used in epoxy resin with the incorporation of Al2O3 and SiO2 nanoparticles. The different tests were performed in order to derive the mechanical characteristics and wear properties of Al2O3 and SiO2 nanoparticles. The mixing is performed using an ultrasound process where the nanoparticles are mixed with the resin for a homogeneous diffusion. The strengths observed for the nanocomposite were higher for bending and impact strength because of the Al2O3 and SiO2 nanoparticle incorporation. The wear rate and friction coefficient is observed to be reduced due to the incorporation of Al2O3 and SiO2 nanoparticles into the epoxy resin. This characteristic has a significant benefit of using Al2O3 and SiO2 nanoparticles for loading conditions. The effects of Al2O3 and SiO2 nanoparticles were more effective in epoxy resin, which were more effectively been derived by reinforcing methods.

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“…Sakka et al, Yu et al., Huang et al, Pradhan et al, Bharadwaja et al, and Eayal Awwad et al investigated the effects of the addition of solid fillers such as carbon nanotubes, graphite, h-BN, c-BN, SiO 2 , graphene nanosheets, and fibers on the tribological properties of EP. According to the statistics of the results, the coefficient of friction (COF) and the wear rate decreased by about 40 and 80%, respectively. − Compared with the solid fillers, the addition of liquid lubricants can undoubtedly have more advantages in the improvement of tribological performances. Kumar et al , and Singh et al confirmed that the addition of lubricating oil had remarkable effects on the inhibition of friction and wear.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Tribological Properties of Self-Lubricating Epoxy Resins with Oil-Containing Nanocapsules

Xiong

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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The design and development of self-lubricating materials aid in enhancing the tribological performance and prolonging the service life of aero self-lubricating spherical plain bearings. Herein, monodisperse hollow mesoporous carbon nanospheres (HMCNs) with thin shell thickness and uniform particle size were synthesized. Afterward, oil-containing nanocapsules (Oil@HMCNs) were obtained by the impregnation method, which was an innovative approach to prepare nanoscale capsules. The Oil@HMCNs were monodispersed, and the oil content rate could reach 45 wt %. The nanocapsules were applied as additives to achieve the self-lubricating properties of epoxy resin (EP). It was revealed that the coefficient of friction (COF) and the wear rate of EP in dry friction can be decreased from 0.56 to 0.084 and from 50.15 × 10–6 to 0.27 × 10–6 mm3/N/m, respectively. The tribological properties of EP composites in dry friction are better than those of EP with external oil. According to the analysis of friction pairs, the antifriction performance was contributed by the released automatic transmission fluid 6HP (ATF6) from nanocapsules. Meanwhile, the presence of ATF6 effectively could inhibit fatigue wear, and the decrease of compressive strength and surface hardness led to plastic deformation and mechanical polishing. Both resulted in a lower wear rate of EP. In conclusion, this work explored the application possibility of hollow mesoporous materials in lubrication. The prepared EP composites exhibited excellent tribological performances and self-lubricating properties, which were expected to be applied to self-lubricating spherical plain bearings and other mechanical parts.

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Investigation of hardness & tribology behavior of Epoxy and Sio2 composite: An experimental study

Cited by 6 publications

References 9 publications

Modification of photosensitive resin with fumed silica

Modification of photosensitive resin with fumed silica

Evaluation of Mechanical Properties for Epoxy Resin in Nano Composite Diffusion

Preparation and Tribological Properties of Self-Lubricating Epoxy Resins with Oil-Containing Nanocapsules

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