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.
Original language | English (US) |
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Pages (from-to) | 305-316 |
Number of pages | 12 |
Journal | Journal of Elastomers and Plastics |
Volume | 48 |
Issue number | 4 |
DOIs | |
State | Published - Jun 2016 |
Keywords
- Biochar
- SBR
- carbon black
- pyrolysis
- reinforcement
ASJC Scopus subject areas
- Polymers and Plastics
- Materials Chemistry