천연고무 배합물 카본블랙 첨가량이 스코치 시간, 열전도도 및 결합고무 함량에 미치는 영향

손봉영; 박찬영

Polymer(Korea), Vol.20, No.3, 506-513, May, 1996

Export Citation

천연고무 배합물 카본블랙 첨가량이 스코치 시간, 열전도도 및 결합고무 함량에 미치는 영향

Effect of Carbon Black Loadig in NR Compounds on Their Scorch Time, Thermal Conductivity and Bound Rubber Content

손봉영, 박찬영

초록

고무배합물에 존재하는 카본블랙과 결합된 결할고무는 열 흡수가 커져서 국부가교가 가속화 되어 스코칭 현상을 나타낸다. 본 연구에서는 카본블랙 첨가량에 따라 변하는 천연고무 배합물의 열전도도와 결합고무 함량을 측정하여 스코칭 현상의 원인을 분석하였고, 스코치 시간이 카본블랙 함량에 따라 감소하는 상태를 정량적으로 예측할 수 있는 실험식을 제안하였다.

Bound rubber combined with carbon blacks in rubber compounds gives rise to the scorching phenomenon because of its large thermal adsorption accelerating the partialcure. In this study, we found the reasons of the scorching by measuring the thermal conductivity and the bound rubber in NR compounds as the various carbon black loading, and proposed a experimental equation which can estimate the scorch time reduction with carbon black loading quantitatively.

Keywords:scorching;scorch time;carbon;thermal conductivity;bound rubber

[References]

Studebaker ML, "Reinforcement of Elastomers," ed. by G. Kraus, p. 343, John Wiley and Sons, New York (1965)
Wise RW, "Rubber Technology," ed. by M. Morton, p. 87, Van Nostrand Reinhold Company, New York (1983)
Hamed GR, Hatfield S, Rubber Chem. Technol., 62, 146 (1989)
Ban LL, Hess WM, Papazian LA, Rubber Chem. Technol., 47, 858 (1974)
Dannenberg EM, Rubber Chem. Technol., 59, 512 (1986)
Nakajima N, Miller RA, Rubber Chem. Technol., 61, 362 (1988)
Rivin D, Aron J, Medalia AI, Rubber Chem. Technol., 41, 330 (1968)
Mooney M, Ind. Eng. Chem. Anal. Edn., 6, 147 (1934)
Shearer R, Juve AE, Musch JH, Rubber Chem. Technol., 21, 496 (1968)
White JL, Soos I, Rubber Chem. Technol., 66, 435 (1993)
Wampler WA, Gerspacher M, Yang HH, Rubber World, 209(4), 39 (1994)
John SD, "Alternate Instrumental Methods of Measuring Scorch and Curcharacteristics," Meeting of the ACS Rubber Division, No. 98, October 26 ~ 29 (1993)
Hands D, Horsfall F, Rubber Chem. Technol., 50, 253 (1977)

[1] Studebaker ML, "Reinforcement of Elastomers," ed. by G. Kraus, p. 343, John Wiley and Sons, New York (1965)

[2] Wise RW, "Rubber Technology," ed. by M. Morton, p. 87, Van Nostrand Reinhold Company, New York (1983)

[3] Hamed GR, Hatfield S, Rubber Chem. Technol., 62, 146 (1989)

[4] Ban LL, Hess WM, Papazian LA, Rubber Chem. Technol., 47, 858 (1974)

[5] Dannenberg EM, Rubber Chem. Technol., 59, 512 (1986)

[6] Nakajima N, Miller RA, Rubber Chem. Technol., 61, 362 (1988)

[7] Rivin D, Aron J, Medalia AI, Rubber Chem. Technol., 41, 330 (1968)

[8] Mooney M, Ind. Eng. Chem. Anal. Edn., 6, 147 (1934)

[9] Shearer R, Juve AE, Musch JH, Rubber Chem. Technol., 21, 496 (1968)

[10] White JL, Soos I, Rubber Chem. Technol., 66, 435 (1993)

[11] Wampler WA, Gerspacher M, Yang HH, Rubber World, 209(4), 39 (1994)

[12] John SD, "Alternate Instrumental Methods of Measuring Scorch and Curcharacteristics," Meeting of the ACS Rubber Division, No. 98, October 26 ~ 29 (1993)

[13] Hands D, Horsfall F, Rubber Chem. Technol., 50, 253 (1977)