Effect of Surfactant on the Physical Properties and Crosslink Density of Silica Filled ESBR Compounds and Carbon Black Filled Compounds

Hwang, Kiwon; Kim, Woong; Ahn, Byungkyu; Mun, Hyunsung; Yu, Eunho; Kim, Donghyuk; Ryu, Gyeongchan; Kim, Wonho

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저자정보: Hwang, Kiwon (Department of Polymer Science & Chemical Engineering, Pusan National University) Kim, Woong (Department of Polymer Science & Chemical Engineering, Pusan National University) Ahn, Byungkyu (Department of Polymer Science & Chemical Engineering, Pusan National University) Mun, Hyunsung (Department of Polymer Science & Chemical Engineering, Pusan National University) Yu, Eunho (Department of Polymer Science & Chemical Engineering, Pusan National University) Kim, Donghyuk (Department of Polymer Science & Chemical Engineering, Pusan National University) Ryu, Gyeongchan (Department of Polymer Science & Chemical Engineering, Pusan National University) Kim, Wonho (Department of Polymer Science & Chemical Engineering, Pusan National University)

저널정보: 한국고무학회 Elastomers and composites 엘라스토머 및 콤포지트 제53권 제2호

발행연도: 2018.1

수록면: 39 - 47 (9page)

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Styrene-butadiene rubber (SBR) is widely used in tire treads due to its excellent abrasion resistance, braking performance, and reasonable cost. Depending on the polymerization method, SBR is classified into solution-polymerized SBR (SSBR) and emulsion-polymerized SBR (ESBR). ESBR is less expensive and environmentally friendlier than SSBR because it uses water as a solvent. A higher molecular weight is also easier to obtain in ESBR, which has advantages in mechanical properties and tire performance. In ESBR polymerization, a surfactant is added to create an emulsion system with a hydrophobic monomer in the water phase. However, some amount of surfactant remains in the ESBR during coagulation, making the polymer chains in micelles clump together. As a result, it is well-known that residual surfactant adversely affects the physical properties of silica-filled ESBR compounds. However, researches about the effect of residual surfactant on the physical properties of ESBR are lacking. Therefore, in this study we compared the effects of remaining surfactant in ESBR on the mechanical properties of silica-filled and carbon black-filled compounds. The crosslinking density and filler-rubber interaction are also analyzed by using the Flory-Rehner theory and Kraus equation. In addition, the effects of surfactant on the mechanical properties and crosslinking density are compared with the effects of TDAE oil (a conventional processing aid).

#SSBR #silica filled compound #carbon black filled compound #surfactant #processing oil

참고문헌 (38)

참고문헌 신청

E. J. Blok / 1999 / U.S. Patent No. 5,994,448

T. Fujimaki / 1989 / U.S. Patent No. 4,866,131

D. A. Joyner / 1993 / U.S. Patent No. 5,272,203

D. Alexander / 2013 / High-performance handling for street or track / Motorbooks International :6~16

B. Rampana / 2014 / U.S. Patent No. 8,640,753

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