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Birchwood biochar as partial carbon black replacement in styrene-butadiene rubber composites

Author:
Steven C. Peterson, Sriraam R. Chandrasekaran, Brajendra K. Sharma
Source:
Journal of Elastomers & Plastics 2016 v.48 no.4 pp. 305-316
ISSN:
0095-2443
Subject:
Betula, biochar, butadienes, carbon, feedstocks, plastics, pyrolysis, rubber, soot, styrene, tensile strength
Abstract:
Birchwood feedstock was used to make slow pyrolysis biochar that contained 89% carbon and <2% ash. This biochar was blended with carbon black (CB) as filler for styrene–butadiene rubber (SBR). Composites made from blended fillers of 25/75 biochar/CB were equivalent to or superior to their 100% CB analogs in terms of tensile strength and toughness at all filler concentrations. Composites made with 50/50 biochar/CB were equivalent to or superior to CB composites in tensile strength, elongation, and toughness properties at total filler concentrations up to 30%. These results demonstrate the potential to use renewable birchwood biochar to replace up to half the CB in certain SBR composites.
Agid:
5510073
Handle:
10113/5510073