Epoxidised natural rubber as a coupling agent in in situ precipitated silica-natural rubber composites


Citation

Maya K.S., . and Varkey J.K., . and George B., . and Joseph R., . Epoxidised natural rubber as a coupling agent in in situ precipitated silica-natural rubber composites. pp. 204-216. ISSN 1511-1768

Abstract

Natural rubber (NR) compounds were prepared with in situ precipitated silica in the presence of epoxidised natural rubber (ENR) as a coupling agent. In situ silica masterbatches were prepared from NR latex along with ENR. For this NR latex was mixed with a suitable amount of ENR latex and precipitation of silica was carried out using sodium silicate and ammonium chloride. Compounds were prepared with these masterbatches. The mechanical properties of the vulcanisates were compared with two reference compounds prepared from NR and commercially available silica with and without a silane-coupling agent Si-69. The NR-silica composites prepared with ENR as the coupling agent showed better mechanical properties and improved rubber-filler interaction.


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Abstract

Natural rubber (NR) compounds were prepared with in situ precipitated silica in the presence of epoxidised natural rubber (ENR) as a coupling agent. In situ silica masterbatches were prepared from NR latex along with ENR. For this NR latex was mixed with a suitable amount of ENR latex and precipitation of silica was carried out using sodium silicate and ammonium chloride. Compounds were prepared with these masterbatches. The mechanical properties of the vulcanisates were compared with two reference compounds prepared from NR and commercially available silica with and without a silane-coupling agent Si-69. The NR-silica composites prepared with ENR as the coupling agent showed better mechanical properties and improved rubber-filler interaction.

Additional Metadata

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Item Type: Article
AGROVOC Term: Natural rubber
AGROVOC Term: Silica
AGROVOC Term: Mechanical properties
AGROVOC Term: Ammonium chloride
AGROVOC Term: Sodium
AGROVOC Term: Latex
AGROVOC Term: morphology
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23102

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