What question did this study set out to answer?

To evaluate the mechanisms and determinants of bound-rubber formation in styrene-butadiene rubber compounds across diverse carbon black grades and filler loadings.

May 1, 1993Rubber Chemistry and Technology

Filler-Elastomer Interactions. Part VII. Study on Bound Rubber

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Authors

SWSiegfried WolffUniversity of Kaiserslautern MWMengjiao WangHebei Medical University ETEwe-Hong Tan

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Implication

Experimental study demonstrates surface area and loading dictate bound-rubber formation in rubber compounds, indicating filler-elastomer interaction is primarily governed by physical adsorption.

Key Points

To evaluate the mechanisms and determinants of bound-rubber formation in styrene-butadiene rubber compounds across diverse carbon black grades and filler loadings.
Compounded styrene-butadiene rubber (SBR) with 17 distinct carbon black grades spanning standard rubber applications.
Measured total bound-rubber content and specific bound-rubber content per unit interfacial area across varying filler loadings, including critical loading of coherent mass.
Evaluated bound-rubber stability under high-temperature conditions for carbon black compounds and in an ammonia atmosphere for silica-filled compounds.
Total bound-rubber content increased with higher filler surface area at high loadings, whereas specific bound rubber per unit interfacial area decreased with increasing surface area and loading.
Critical loading of coherent mass displayed strong dependence on particle size, with larger-particle carbon blacks producing higher critical loadings.
Desorption under elevated temperatures and ammonia exposure indicated that bound-rubber formation is predominantly driven by physical adsorption rather than chemical cross-linking.

Cite This Study

Wolff et al. (1993) studied this question.

synapsesocial.com/papers/6aa69e8b6a6f69d61978fc81 https://doi.org/10.5254/1.3538304

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Implication

Experimental study demonstrates surface area and loading dictate bound-rubber formation in rubber compounds, indicating filler-elastomer interaction is primarily governed by physical adsorption.

Filler-Elastomer Interactions. Part VII. Study on Bound Rubber

Discussion

Member takes

Implication

Key Points

Cite This Study

Filler-Elastomer Interactions. Part VII. Study on Bound Rubber

Discussion

Member takes

Implication

Key Points

Cite This Study

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