Characterizing the influence of reinforcing resin on the structure and the mechanical response of filled isoprene rubber

Syed, Imran Hussain; Klat, Darja; Braer, Anastasia; Fleck, Frank; Lacayo‐Pineda, Jorge

doi:10.1080/1539445x.2018.1509872

Cited by 8 publications

(9 citation statements)

References 30 publications

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“…In the previous investigation, it was concluded that novolac-type phenolic resin changes the interfacial properties of the CB filler network [12]. This resin-mediated filler network enhances the mechanical properties of the material.…”

Section: Resultsmentioning

confidence: 99%

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Superharmonic Resonance in Carbon-Black-Filled Rubber by High-Frequency DMA

Syed

Lacayo‐Pineda

2019

Polymers

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A systematic study of several SBR compounds filled with carbon black of various grades were analysed with the high-frequency Dynamic Mechanical Analyzer (HF DMA) in order to quantify the degree of nonlinearity induced by fillers in rubber compounds. These filler grades indirectly reflect different degrees of microdispersion, which seems to be the main influence on the superharmonic resonance phenomenon observed in HF DMA. This statement arises from the comparison of the microdispersion observed in TEM images. In the second part of the paper, a model compound filled with carbon black is enhanced with a standard reinforcing resin, which leads to a more compact filler network. This induces a higher superharmonic resonance response as well as a higher transmissibility behaviour.

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Section: Resultsmentioning

confidence: 99%

“…In another investigation, it was concluded that novolac-type phenolic resin changes the interfacial properties of the carbon black (CB) filler network [12]. This was concluded based on thermomechanical as well as microscopical measurements on filled isoprene rubber compounds with various resin concentrations.…”

Section: Introductionmentioning

confidence: 99%

Superharmonic Resonance in Carbon-Black-Filled Rubber by High-Frequency DMA

Syed

Lacayo‐Pineda

2019

Polymers

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“…[120][121][122][123] PF can be used as a reinforcing agent in different rubber types including IR, NBR, EPDM and chloroprene rubber (CR). [91,[124][125][126] Such an in situ preparation of PF within a rubber matrix has been determined to increase hardness and resistance to heat, oxidation and solvents. [127] The production of PFs follows the principle of a condensation reaction between a phenol and a formaldehyde as depicted in Figure 15.…”

Section: Phenolic Resins As Rigid Phasementioning

confidence: 99%

“…In addition, superior mechanical properties can be ascribed to synergistic filler-PF compounds compared to rubbers containing only a filler or PF as reinforcing agent. [125,126,136] Nigam et al addressed the synergistic effect of CB-PF in a NBR matrix. For this study, NBR samples reinforced with either CB, PF or a hybrid filler system (CB-PF) were investigated.…”

Section: Phenolic Resins As Rigid Phasementioning

confidence: 99%

“…Upon the addition of resin this percolation threshold is reduced, which yields an improved filler network and superior properties. [126] In addition, it has been reported that the upturn in modulus at high deformation for resin reinforced composites is attributed to the finite chain extensibility of the short chain linking filler particles. The mechanism for common CB is associated with polymer chain entanglements.…”

Section: Phenolic Resins As Rigid Phasementioning

confidence: 99%

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Approaches TowardIn SituReinforcement of Organic Rubbers: Strategy and Recent Progress

2021

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Organic rubbers, comprising carbon-carbon links in their polymer backbone, are an essential part of modern everyday life. Tough, their unique properties are mainly governed by reinforcing fillers such as carbon black and silica. However, the reinforcing power is not only driven by the chemical nature of fillers but also by their particle size, shape, distribution and dispersion. In order to minimize agglomeration and processing difficulties, the idea of in situ generated fillers has been approached. In situ means "locally" and refers to the generation of fillers during the vulcanization process. This versatile technique provides individual tailoring of rubber compounds due to numerous possible reaction pathways. In situ reinforcement has been reported for all relevant rubber matrixes and is already employed commercially. In this review, a comprehensive overview of possible in situ reinforcing strategies for organic rubbers and their impact on mechanical properties is provided. It covers the reinforcing power of sol-gel derived in situ fillers, metal salts of unsaturated carboxylic acids as well as the formation of interpenetrating networks with resins in detail.

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