Thiophosphoryl disulfides: Novel coupling agents for styrene-butadiene rubber/carboxylated nitrile rubber blends

Thiophosphoryl disulfides: Novel coupling agents for styrene-butadiene rubber/carboxylated nitrile rubber blends

Thiophosphoryl disulfide was successfully used as a novel coupling agent to form a coherent blend comprising polar carboxylated nitrile rubber (XNBR) and nonpolar styrene‐butadiene rubber (SBR) establishing close proximity between them through chemical bridging. The study reveals that XNBR in the pr...

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Veröffentlicht in:Journal of applied polymer science 1995-11, Vol.58 (6), p.981-993
Hauptverfasser: Biswas, Tapasi, Naskar, Nityananda, Basu, Dipak Kumar
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Machinery and processing
Moulding and vulcanizing
Polymer industry, paints, wood
Rubber
Technology of polymers
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Zusammenfassung:Thiophosphoryl disulfide was successfully used as a novel coupling agent to form a coherent blend comprising polar carboxylated nitrile rubber (XNBR) and nonpolar styrene‐butadiene rubber (SBR) establishing close proximity between them through chemical bridging. The study reveals that XNBR in the presence of thiophosphoryl disulfide greatly improves the physical properties of SBR and thus acts as a reinforcing filler. It is noted that the physical properties of the vulcanizates obtained from the SBR‐XNBR blend depend upon the SBR : XNBR ratio and the mode of cure. SEM studies corroborate the observed facts. © 1995 John Wiley & Sons, Inc.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1995.070580604