Fatigue and hysteresis behavior of halloysite nanotubes‐filled natural rubber (SMR L and ENR 50) nanocomposites

Ismail, Hanafi; Salleh, Siti Zuliana; Ahmad, Zulkifli

doi:10.1002/app.37587

Cited by 13 publications

(3 citation statements)

References 28 publications

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“…1 HNTs, a type of naturally occurring clay with a hollow nanotubular structure and a high length to diameter ratio, have been extensively studied as an ideal nanofiller for high-performance polymer nanocomposites with remarkably improved mechanical properties, thermal stability, and flammability. [2][3][4][5] Epoxy resins have been widely used in the fields of coating, adhesives, and electronics because of their high adhesive strength, mechanical properties, dimensional stability, and chemical resistance. 6,7 However, epoxy resins are relatively brittle and often display low fracture toughness (K IC ), which has hindered some of their applications.…”

Section: Introductionmentioning

confidence: 99%

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Zhang

Jia

et al. 2014

High Performance Polymers

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The effects of chemical functionalization of halloysite nanotubes (HNTs) on dispersion, interfacial interaction, and mechanical properties of epoxy nanocomposites were investigated. HNT-filled epoxy nanocomposites were fabricated and their morphology and mechanical properties were systematically studied; the results were compared with those for neat epoxy resin. Transmission electron microscopic micrographs revealed uniform morphologic dispersion of functional HNTs in the epoxy matrix. The interfacial interaction between functional HNTs and the epoxy matrix was shown by differential scanning calorimetry and scanning electron microscopy analyses. The reaction between the functional amine--terminated groups of HNTs and epoxy monomers improved the dispersion of HNTs and the interfacial adhesion between HNTs and epoxies. The functional HNT-filled epoxy nanocomposites showed improved mechanical properties compared with the as-received HNT-filled nanocomposites. This was attributed to better dispersion and stronger interfacial interaction.

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Section: Introductionmentioning

confidence: 99%

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Zhang

Jia

et al. 2014

High Performance Polymers

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“…These curvature changes, which depend on the polymer structure, are rationalized by fracture modes classified from the SEM images of fracture surfaces (Figure ). The SEM images show that the PEN, PET, PVC, and PS films had a rough fracture surface associated with ductile fracture. − In contrast, the PC and COP films had a smooth fracture surface with a distinct striation pattern, indicating brittle fracture. − Considering the fracture modes, the crack propagation in the PC and COP films was much faster than that in the other polymer films, resulting in a short fatigue life. These results suggest that analyzing not only toughness but also the radius of curvature gives us insight into the fatigue behavior depending on the polymer structure.…”

Section: Resultsmentioning

confidence: 99%

Bending Fatigue Analysis of Various Polymer Films by Real-Time Monitoring of the Radius of Curvature and Heat Generation

et al. 2023

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Understanding the fatigue behavior of polymer films under cyclic bending is essential to the design of suitable substrates for flexible electronics. However, bending fatigue remains unclear due to the lack of comprehensive and quantitative investigations across various polymer films. Herein, we quantitatively investigate the bending fatigue behavior of various polymer films with a newly developed multifunctional bending fatigue tester that can precisely evaluate the radius of curvature and heat generation during the fatigue process. Measuring the radius of curvature reveals that the polymer structures affect the surface bending strain and fracture modes, which are critical factors in fatigue life. Furthermore, heat is accumulated in polymer films under high-rate cyclic bending, leading to thermal degradation and a shortening of the fatigue life. These investigations provide us with an effective variable for machine learning and improve the prediction accuracy of the fatigue life. The resultant perspectives enable us to comprehend the fatigue behavior and fatigue life of polymer films subjected to cyclic bending, facilitating the development of flexible electronic devices and soft robots.

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“…Recent studies 7–19 were also focused on halloysite nanotubes (HNTs), which are naturally occurring 1:1 alumosilicates with tubular form. HNTs have silanol groups on the edges of the tubes which make the dispersion more difficult due to their interparticle affinity.…”

Section: Introductionmentioning

confidence: 99%

The effect of coupling agents on silicate-based nanofillers/carbon black dual filler systems on the properties of a natural rubber/butadiene rubber compound

Poikelispää

Das

Dierkes

et al. 2014

Journal of Elastomers & Plastics

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Nanofillers have been introduced a few years ago, but their application in elastomers is still a challenge. With the existing rubber processing equipment and constraints of rubber mixing, dispersion of nanofillers is difficult. The processability and performance of compounds containing plate- or tube-like silicates in a blend with conventional fillers, such as carbon black (CB), are investigated, and the effect of surface modification of the nanofillers is studied. Processing is facilitated by the replacement of CB by the nanofillers, but curing efficiency is reduced. The dispersion of the fillers is improved with the addition of nanofillers. The dynamic properties of the cured composite material are affected, giving the composite material lower hysteresis, while the mechanical properties are merely affected by the addition of nanofillers. Additionally, the filler–polymer interaction is increased. The addition of a compatibilizing and coupling agent, a silane, has only a minor effect and does not improve processing and properties significantly for these combined filler systems.

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Fatigue and hysteresis behavior of halloysite nanotubes‐filled natural rubber (SMR L and ENR 50) nanocomposites

Cited by 13 publications

References 28 publications

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Chemical functionalization for improving dispersion and interfacial bonding of halloysite nanotubes in epoxy nanocomposites

Bending Fatigue Analysis of Various Polymer Films by Real-Time Monitoring of the Radius of Curvature and Heat Generation

The effect of coupling agents on silicate-based nanofillers/carbon black dual filler systems on the properties of a natural rubber/butadiene rubber compound

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