상용화제 SEBS가 비상용 PP/PS 블렌드계의 물성에 미치는 영향과 최적 상용화제 농도의 결정

김태균; 정인재

Korean Journal of Rheology, Vol.5, No.1, 76-84, June, 1993

The Effect of SEBS as a Compatibilizer on the Physical Properties of Immiscible PP/PS Blends and the Determination of SEBS Optimum Concentration

김태균, 정인재

초록

비상용 고분자 PP/PS 블렌드계에서 상용성을 높이기 위하여 상용화제 SEBS 블럭공중합체를 첨가하였다. 상용화제의 첨가량에 따른 유변학적 그리고 기계적 물성은 상용화제를 첨가하지 않은 조성보다 물성의 향상을 가져왔다. 형태학적으로 분산상 크기 감소,분산분포와 유변학적 성질의 에멀젼 모델를 이용하여 상대적인 계면장력을 계산하여 상용화제의 최적 농도를 조사하였다. 또한 상용화제가 더이상 기계적 물성에 영향을 미치지 않는 농도를 조사하였다. 형태학적, 유변학적 그리고 기계적 물성조사에서 나타난 상용화제의 최적 농도는 약 1 wt.%이었다.

A compatibilizer (SEBS; sytrene-ehtylenebutylene-sytrene copolymer) was added in the immiscible PP/PS blends system in order to enhance the compatibility. Rheological and mechanical properties were increased with the amount of the compatibilizer. By measuring the reduction of dispersed phase size and using emulsion model, the relative interfacial tension was calculated. From the comparison of the dispersed phase size and the interfacial tension with the mechanical properties, we determined the optimum concentration of the compatibilizer to be about 1 wt.% SEBS.

Keywords:PP/PS blend;Compatibilizer;SEBS;Interfacial tension

[References]

Willis JM, Favis BD, Polym. Eng. Sci., 28, 1416 (1988)
Paul DR, Newman S, "Polymer Blends," Chap. 7, 8 and 10, Vol. 1, Academic Press, New York (1978)
Xanthos MK, Polym. Eng. Sci., 28, 1393 (1988)
Malau GL, J. Polym. Sci. A: Polym. Chem., 3, 1267 (1965)
Fayt R, Jerome R, Teyssie P, J. Polym. Sci. C: Polym. Lett., 24, 2759 (1990)
Patterson HT, Hu K, Grindstaff TM, J. Polym. Sci. C: Polym. Lett., 34, 31 (1971)
Yohsida M, Polym. Eng. Sci., 30, 30 (1990)
Locke CE, Paul DR, J. Appl. Polym. Sci., 17, 2597 (1973)
Locke CE, Paul DR, J. Appl. Polym. Sci., 17, 2791 (1973)
Graebling D, Muller R, Palierene JF, Macromolecules, 26, 320 (1993)
Graebling D, Froelich D, Muller R, J. Rheol., 33(8), 283 (1989)
Scholz P, Froelich D, Muller R, J. Rheol., 33(3), 481 (1989)
Graebling P, Muller R, J. Rheol., 34(2), 193 (1990)
Willis JM, Favis BD, Polym. Eng. Sci., 30, 741 (1990)
Gupta AK, Kratnam B, Srinivasa KR, J. Appl. Polym. Sci., 46, 281 (1992)
Noolandi J, Hong KM, Macromolecules, 15, 482 (1982)
Noolandi J, Hong KM, Macromolecules, 17, 1531 (1984)
Oldroyd JG, Proc. R. Soc. London A, 218, 122 (1953)

[1] Willis JM, Favis BD, Polym. Eng. Sci., 28, 1416 (1988)

[2] Paul DR, Newman S, "Polymer Blends," Chap. 7, 8 and 10, Vol. 1, Academic Press, New York (1978)

[3] Xanthos MK, Polym. Eng. Sci., 28, 1393 (1988)

[4] Malau GL, J. Polym. Sci. A: Polym. Chem., 3, 1267 (1965)

[5] Fayt R, Jerome R, Teyssie P, J. Polym. Sci. C: Polym. Lett., 24, 2759 (1990)

[6] Patterson HT, Hu K, Grindstaff TM, J. Polym. Sci. C: Polym. Lett., 34, 31 (1971)

[7] Yohsida M, Polym. Eng. Sci., 30, 30 (1990)

[8] Locke CE, Paul DR, J. Appl. Polym. Sci., 17, 2597 (1973)

[9] Locke CE, Paul DR, J. Appl. Polym. Sci., 17, 2791 (1973)

[10] Graebling D, Muller R, Palierene JF, Macromolecules, 26, 320 (1993)

[11] Graebling D, Froelich D, Muller R, J. Rheol., 33(8), 283 (1989)

[12] Scholz P, Froelich D, Muller R, J. Rheol., 33(3), 481 (1989)

[13] Graebling P, Muller R, J. Rheol., 34(2), 193 (1990)

[14] Willis JM, Favis BD, Polym. Eng. Sci., 30, 741 (1990)

[15] Gupta AK, Kratnam B, Srinivasa KR, J. Appl. Polym. Sci., 46, 281 (1992)

[16] Noolandi J, Hong KM, Macromolecules, 15, 482 (1982)

[17] Noolandi J, Hong KM, Macromolecules, 17, 1531 (1984)

[18] Oldroyd JG, Proc. R. Soc. London A, 218, 122 (1953)