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Norbornylized soybean oil as a sustainable new plasticizer for rubbers with hybrid fillers
Author(s) -
Li Jiaxi,
Isayev Avraam I,
Ren Xiaofeng,
Soucek Mark D
Publication year - 2017
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5321
Subject(s) - materials science , natural rubber , compression set , tear resistance , composite material , vulcanization , precipitated silica , ultimate tensile strength , styrene butadiene , filler (materials) , curing (chemistry) , carbon black , thermal stability , abrasion (mechanical) , chemical resistance , plasticizer , rheology , polymer , styrene , chemical engineering , engineering , copolymer
Carbon black ( CB ) and precipitated silica are two major reinforcing fillers in rubbers. CB /silica hybrid filler is also widely used in rubbers to provide balanced properties. CB /silica‐hybrid‐filler‐filled styrene‐butadiene rubber ( SBR ) containing naphthenic oil ( NO ), soybean oil ( SO ) and norbornylized SO ( NSO ) was investigated. The swelling and curing behavior and rheological, mechanical, thermal, aging and dynamic properties were studied and compared with earlier reported data on CB ‐ or silica‐filled SBR . NSO provides better scorch safety and faster cure than SO . Compared with NO , the addition of SO and NSO enhances the thermal stability and aging resistance of SBR vulcanizates. SBR / NSO vulcanizates with hybrid filler exhibit a higher tensile and tear strength than SBR / NO and SBR / SO vulcanizates. A synergistic effect in the abrasion resistance of vulcanizates containing the hybrid filler is observed. An increase of sulfur content in the hybrid‐filler‐filled SBR / NSO vulcanizates provides further improvement in abrasion resistance, wet traction and rolling resistance. © 2017 Society of Chemical Industry