Structure-property relationship of highly crosslinked rubber-iron oxide composite based on chloroprene rubber (CR) as well as on nitrile rubber (NBR); a comparative study using different models

Natarajan, Ramasamy; Padmakumar, Amrishkumar; Haralur, Gurulingamurthy; Singha, Nikhil K.

doi:10.1080/10601325.2020.1826328

Cited by 3 publications

(2 citation statements)

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“…This change in elemental content must be caused by the interaction between N330b and the rubber matrix and other additives and the vulcanization reaction. Figure 3b shows the C1s fine spectra of N330a, N330b, and N330c, all of which can be seen as C=C/C-C (284.8 eV), C-O (285.8 eV), C=O (287.0 eV), O-C=O (290.9 eV) [44]; the difference lies in the different contents, as shown in Table 2. The content of C=O bonds in N330a, N330b, and N330c is 10.49%, 5.09%, and 3.22%, respectively, showing a gradual decrease.…”

Section: Characterization Of the Recycled Cbsmentioning

confidence: 99%

“…E is proportional to the maximum elasticity stored in the rubber sample in each cycle, reflecting the elastic component in the viscoelastic rubber. E is related to the energy consumed by the rubber sample in each cycle, reflecting the viscosity component in the rubber viscoelasticity [44][45][46]. The internal friction value (tan θ) at 0 • C is used to evaluate the wet-skid resistance, while tan θ at 60 • C represents the rolling resistance [18,47].…”

Section: Samplesmentioning

confidence: 99%

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Significant Influence of Bound Rubber Thickness on the Rubber Reinforcement Effect

Chen

et al. 2023

Polymers

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In this work, the contribution of different types of carbon blacks (N115, N330, N550, N660) and their primary and secondary thermally cracked recovered carbon blacks to the mechanical properties of NR composites was evaluated. The thermally cracked recovered carbon blacks were prepared by cracking the rubber composites at 500 °C and de-hybridizing them at 900 °C. The characterization of the thermally cracked recovered carbon blacks by scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy showed that carbon blacks after primary and secondary thermal cracking recovery were more prone to aggregation and exhibited a higher degree of carbon defects. The number and type of functional groups on the surface of these carbon blacks were significantly reduced. For NR composites with pristine samples added, the mechanical properties and the bound rubber content tests showed that the mechanical properties of the NR composites became weaker with the increase in carbon black particle size. The bound rubber content also decreased with increased carbon black particle size. The mechanical properties of the NR composites reinforced with carbon black recovered by primary and secondary thermal cracking would therefore decrease. The results of AFM and DSC tests further confirmed the decreasing trend of bound rubber. The present work demonstrates the effect of bound rubber content variation on the mechanical properties of rubber, demonstrates the morphology of bound rubber more visually, and provides new insights into the reinforcement theory of CB.

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Section: Characterization Of the Recycled Cbsmentioning

confidence: 99%