TITLE： Toward Replacement of Petroleum Oils by Modified Soybean Oils in Tire Applications
SPEAKER： Prof. Avraam I. Isayev ,University of Akron, USA
TIME：August 7 (Friday) AM10:00
LOCATION： 518 Meeting Room, Chemistry Building A(化学A楼518会议室)
INVITER： Prof. Wei Yu (俞炜教授)

Toward Replacement of Petroleum Oils by Modified Soybean Oils in Tire Applications

Avraam I. Isayev, Department of Polymer Engineering, The University of Akron, Akron, Ohio 44325-0301, USA; E-mail: aisayev@uakron.edu

Abstract:

Petroleum oil is a common plasticizer for tire rubbers filled with precipitated silica and carbon black (CB). The current trend in tire industry is to replace petroleum oils with modified oils derived from plants, such as soybean oils. The present paper describes results of studies related to utilization of soybean oil norbornylized through the reaction with dicyclopentadiene (DCPD) at various levels in SBR compounds in comparison with usage of naphthenic and unmodified soybean oil. The gel fraction, crosslink density, bound rubber fraction, curing behavior, thermal properties, mechanical and dynamic properties and the possible reactions between the SO, MSO and the silane coupling agent were investigated. Results indicated that the silica- and CB-filled SBR vulcanizates showed a similar trend on behavior of gel fraction and crosslink density for different extender oils. However, the silica-filled SBR compounds showed a lower bound rubber fraction than that of the CB-filled SBR compounds. Both silica- and CB-filled SBR compounds and vulcanizates extended with SO and MSO showed better thermal stability compared to rubbers extended with NO. The silica-filled SBR vulcanizates exhibited a higher M100, a lower tensile strength and similar abrasion resistance than those of the CB-filled SBR vulcanizates. Vulcanizates containing MSO and SO exhibited higher tensile strength and elongation at break than NO containing vulcanizates. An adjustment of the curing recipe provided the silica-filled SBR/MSO vulcanizates exhibiting lower rolling resistance, higher traction and abrasion resistance simultaneously. Usage of MSO in rubbers improves safety in manufacturing of tires.

Biography:

Dr. Avraam I. Isayev is Distinguished Professor of Polymer Engineering at University of Akron and Editor-in-Chief of Advances in Polymer Technology. He received his Ph.D. in Polymer Science and Engineering, Institute of Petrochemical Synthesis of USSR Academy of Sciences, Moscow; M.Sc. in Applied Mathematics, Institute of Electronic Machine Building, Moscow, USSR; M.Sc.in Chemical Engineering, Azerbaijan Institute of Oil and Chemistry, Baku, USSR. Prior to joining the University in 1983, Isayev conducted research at Cornell University, Israel Institute of Technology, USSR Academy of Sciences, and State Research Institute of Nitrogenic Industry, USSR. His research interests focus in polymer and composite processing, process modeling, rheo-optics, rheology and constitutive equations of polymers, oil products and disperse systems; the injection, co-injection, transfer, compression and gas-assisted injection molding; processing of self-reinforced or in-situ composites based on blends of flexible and thermotropic liquid crystalline polymers; decrosslinking of thermosets, devulcanization of rubbers and in-situ copolymer formation in immiscible blends with the aid of ultrasonic waves; high temperature and high performance nanocomposites. Isayev has co-authored 2 editions of 1 monograph, edited or co-edited 7 books, published over 240 papers in journals, 33 chapters in books, 7 papers in encyclopedias, 160 papers in conference proceedings. He holds 26 patents. He advised 43 PhD, 39 MS students and 29 postdocs and visiting scientists. He serves on editorial and advisory boards of many journals. His research was featured in the Boston Globe, Plastics Technology, Rubber and Plastics News, AAAS Science Update, Popular Science, Business Week, Architect Magazine, Tire Technology International, PBS TV and other publications around the world. Isayev is the recipient of the Young Scientist Award (Moscow), the OMNOVA Solutions Signature University Award from the OMNOVA Solutions Foundation, The Melvin Mooney Distinguished Technology Award and The Stafford Whitby Award from Rubber Division of the ACS, the Silver Medal from the Institute of Materials (London), the Vinogradov Prize from the G. V. Vinogradov Society of Rheology (Moscow), the NorTech Award given by Crane Publishers, James L. White Award of PPS and the Society of Plastics Engineers (SPE) International Award. He is SPE Fellow.