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Elastomer and Plastic Compatibility With a Pyrolysis-Derived Bio-Oil

Picture for Elastomer and Plastic Compatibility With a Pyrolysis-Derived Bio-Oil
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Polymer compatibilty with key infrastructure elastomers and plastics was determined using a neat bio-oil that was derived via fast-pyrolysis of woody biomass. The elastomers were exposed to the bio-oil in a sealed container for 4 weeks while the plastics were exposed for 16 weeks. The bio-oil was kept at ambient temperatures (approximately 20C) and atmopsheric pressures.The mass volume change and hardness were measured and compared to the original starting values. These results were compared to identical specimens exposed to neat diesel fuel for baseline comparison. The results provide a useful comparison of assessing bio-oil compatibilty with existing infrastructure materials.

Product Number: 51319-13566-SG
Author: Raynella Connatser
Publication Date: 2019
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$20.00
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The compatibility of fueling infrastructure elastomers in bio-oil and diesel fuel was determined by measuring the volume swell and hardness before and after drying.  The bio-oil was produced via fast pyrolysis from a blend of pine feedstocks.  The elastomer materials included two fluorocarbons, six acrylonitirile butadiene rubbers (NBRs), fluorosilicone, styrene butadiene rubber, neoprene, polyurethane, neoprene, silicone, ethylene propylene diene monomer (EPDM), hydrogenated acrylonitrile butadiene rubber (HNBR), a blend of NBR and PVC (OZO), and a blend of  epichlorohydrin and ethylene oxide (ECO).  The majority of the elastomer materials (except for EPDM, SBR and silicone) exhibited higher volume expansion in bio-oil than in diesel.  Excessive swelling was noted for the polyurethane, neoprene and three of the NBRs.  In general, the higher polarity of these elastomers more closely aligned with the polarities of the bio-oil versus the diesel fuel.  Conversely, EPDM, SBR, and silicone are relatively nonpolar and this matches the low polarity of the diesel fuel, which resulted in higher volume expansion in diesel, rather than the bio-oil for these four polymers. 
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Product Number: 51300-09168-SG
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