Non-linear Viscoelastic Behaviour of Rubber-Rubber Blend Composites and Nanocomposites: Effect of Spherical, Layered and Tubular Fillers

Nair, Ajalesh B.; George, Neena; Joseph, Rani

doi:10.1007/978-3-319-08702-3_5

Cited by 11 publications

(3 citation statements)

References 103 publications

(111 reference statements)

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“…It can also be observed from Figure 7C that, as the CNT loading in hybrid NPs increases, the loss factor decreases (increases) at small (large) shear strain amplitudes, indicating that at small (large) shear strain amplitudes, the higher CNT loading in hybrid NPs, the higher (lower) the elasticity and the lower (higher) the viscosity of the nanocomposites. This result is well agreed with the conclusions reported in the literature 37 …”

Section: Resultssupporting

confidence: 94%

“…This result is well agreed with the conclusions reported in the literature. 37 In order to deeply unravel the intrinsic mechanism of CB/CNTs hybrid NPs on the viscoelastic behavior of the nanocomposites, the structural evolutions of NP networks, polymer networks and NP-polymer interfaces are studied, respectively, and the contributions of different networks to the Payne effect are quantitatively compared by calculating the variation of the interaction energy E nonÀbond between components during dynamic shear.…”

Section: Viscoelastic Behavior Of the Nanocompositesmentioning

confidence: 99%

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Analysis of static and dynamic mechanical properties of carbon black/carbon nanotubes hybrid filled natural rubber nanocomposites using coarse‐grained molecular dynamics

Cui,

Zeng,

Wei

et al. 2024

Polymer Composites

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Nanoparticle (NP)‐filled natural rubber (NR) has attracted much attention owing to their prominent mechanical strength, stiffness, and wear resistance. In this study, the static and dynamic mechanical properties of carbon black (CB)/carbon nanotubes (CNTs) hybrid filled NR nanocomposites are investigated using coarse‐grained molecular dynamics (CGMD) simulations. The non‐bonded coarse‐grained force fields for the CB/CNTs hybrid filled NR nanocomposites are constructed by combining several methods (i.e., effective force coarse‐graining, iterative Boltzmann inversion, and energy matching methods). The uniaxial tensile results indicate that the gradual replacement of CB by the same weight percentage of CNTs significantly improves the mechanical performances of the nanocomposites and increases the heterogeneity of the stress and strain distributions in the nanocomposites, which can be ascribed to the high mechanical strength of CNTs and the formation of the rigid interface networks between CNTs and the NR matrix due to the wrapping behavior of NR molecular chains on the surface of CNTs. Furthermore, the dynamic shear results demonstrate that the introduction of NPs significantly enhances the Payne effect of the nanocomposites, and the higher the CNT loading in hybrid NPs, the stronger the Payne effect. It is also found that the breakup of NP networks plays a dominant role for the Payne effect of filled rubber as compared to the interfacial separation between NPs and the rubber matrix. The present multiscale computational framework can be further extended to other polymer nanocomposites, and sheds new light on the design and exploration of polymer nanocomposites through bottom‐up prediction.

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Section: Resultssupporting

confidence: 94%

Section: Viscoelastic Behavior Of the Nanocompositesmentioning

confidence: 99%

Analysis of static and dynamic mechanical properties of carbon black/carbon nanotubes hybrid filled natural rubber nanocomposites using coarse‐grained molecular dynamics

Cui,

Zeng,

Wei

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…In a polymeric composite material, especially in the case of rubber, reinforcement by filler greatly influences different properties. The filler–rubber interaction is explained by Fletcher and Gent [ 47 ], and the study was further enhanced by Payne [ 48 ]. In addition, the dispersion of filler by ionic liquids was discussed by Yasin et al [ 49 ].…”

Section: Methodsmentioning

confidence: 99%

Multi-Stressed Nano and Micro-Silica/Silicone Rubber Composites with Improved Dielectric and High-Voltage Insulation Properties

et al. 2021

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The scope of silicone rubber (SiR) is confined due to the deprivation of its dielectric propertiesupon exposure to various ambient stresses. The aim of this research is to develop silicone rubber-based composites by employing inorganic oxide fillers for improved dielectric and high voltage insulation properties for widening its scope in the field of electrical appliances. This study reports the preparation of different composites of silicone rubber with varying concentrations of micro and nano-silica fillers. The dielectric propertytrends of these as-prepared neat and impregnated samples were examined via an indigenously developed weathering chamber capable of applying multiple stresses of acid rain, heat, humidity, UVA radiation, and salt fog. Dielectric constant values were measured before and after applying stresses. Upon applying stresses, a periodic decline in dielectric constant was observed. Improved dielectric properties were obtained by adding micro and nano-silica as fillers. A nano silica-incorporated silicone rubber product exhibited good potential for dual applications as dielectric and high voltage insulation.

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Viscoelastic and thermal properties of naturalrubber low‐density polyethylene composites with boric acid and borax

Abdulrahman

Ahmad

Thomas

et al. 2020

J of Applied Polymer Sci

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The influence of boric acid (BA) and borax (BO) neutron‐absorbing fillers on thermal stability and viscoelastic behavior of natural rubber (NR) low‐density polyethylene composites has been studied. The thermal degradation and dynamic mechanical properties of the composites have been analyzed as a function of temperature. The results revealed the enhancement of thermal stability of the composites by the addition of BA and BO fillers. The flame resistance of the material was improved by the addition of both the fillers. The storage modulus was found to be dependent upon the temperature and nature of the filler. The amount of NR chains immobilized by filler particles has been quantified from dynamic mechanical analysis and secondary filler/filler interactions have been verified by the Payne effect analysis. Finally, the experimental results have been compared with theoretical predictions.

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Non-linear Viscoelastic Behaviour of Rubber-Rubber Blend Composites and Nanocomposites: Effect of Spherical, Layered and Tubular Fillers

Cited by 11 publications

References 103 publications

Analysis of static and dynamic mechanical properties of carbon black/carbon nanotubes hybrid filled natural rubber nanocomposites using coarse‐grained molecular dynamics

Analysis of static and dynamic mechanical properties of carbon black/carbon nanotubes hybrid filled natural rubber nanocomposites using coarse‐grained molecular dynamics

Multi-Stressed Nano and Micro-Silica/Silicone Rubber Composites with Improved Dielectric and High-Voltage Insulation Properties

Viscoelastic and thermal properties of naturalrubber low‐density polyethylene composites with boric acid and borax

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