이축압출기에서 카본나노튜브의 분산에 대한 충전제 효과

홍승수; 신지희; 송권빈; 이광희; Seung Soo Hong; Ji Hee Shin; Kwon Bin Song; Kwang Hee Lee

Polymer(Korea), Vol.37, No.3, 342-346, May, 2013

Export Citation

이축압출기에서 카본나노튜브의 분산에 대한 충전제 효과

Effect of Fillers on Dispersion of Carbon Nanotubes in a Twin-Screw Extruder

홍승수, 신지희, 송권빈, 이광희 ^†

인하대학교 고분자공학과

Seung Soo Hong, Ji Hee Shin, Kwon Bin Song, and Kwang Hee Lee^†

Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea

E-mail:

초록

마이크론 크기의 입자를 분산하기에 적합하나 나노 크기의 입자를 분산하기에는 미흡한 이축압출기를 사용하여 카본나노튜브(CNT) 분산을 시도하였다. 카본나노튜브 분산성 향상을 위해 서로 다른 입자 형상을 가지는 무기 충전제를 부가하였다. 무기 충전제 첨가에 따른 점도 증가는 상대적으로 높은 전단력을 유도하여 응집된 카본나노튜브 입자의 분산을 도모하였다. 또한 충전제 입자들은 전단력이 미치지 않는 구역에서 일어나는 카본나노튜브의 재응집을 억제함으로써 분산 안정화에 기여하였다.

In this study, it was attempted to disperse carbon nanotubes (CNTs) in a polymer matrix using a twin-screw extruder which was good for dispersing fillers of micron sizes but not suitable for dispersing nanometer-sized materials. Improved dispersion of CNTs could be achieved by the addition of inorganic fillers with different geometrical shapes. An increase in the matrix viscosity provided a high shear stress on aggregated CNTs, leading to a good dispersion of CNTs. The presence of the inorganic fillers was supposed to suppress the re-aggregation of CNTs in the regions where a lower shear stress was applied. As a result, the CNTs dispersion was well stabilized.

Keywords:dispersion;carbon nanotube;twin-screw extruder.

[References]

Crosby AJ, Lee JY, Polym. Rev., 47, 220 (2007)
Liu TX, Phang IY, Shen L, Chow SY, Zhang WD, Macromolecules, 37(19), 7214 (2004)
Vaisman L, Wagner HD, Marom G, Adv. Colloid Interface Sci., 128, 40 (2006)
Villmow T, Potschke P, Pegel S, Haussler L, Kretzschmar B, Polymer., 49, 3501 (2008)
Pegel S, Potschke P, Petzold G, Alig I, Dudkin SM, Lellinger D, Polymer., 49, 975 (2008)
Chang TE, Kisliuk A, Rhodes SM, Brittain WJ, Sokolov AP, Polymer., 47, 7742 (2006)
Villmow T, Kretzschmar B, Potschke P, Compos. Sci. Technol., 70, 2046 (2010)
Frankel NA, Acrivos A, Chem. Eng. Sci., 22, 850 (1967)
Mooney M, J. Colloid Sci., 6, 162 (1951)
Thomas DG, J. Colloid Sci., 20, 275 (1965)
Kitano T, Kataoka T, Shirota T, Rheol. Acta., 20, 208 (1981)
Kataoka T, Kitano T, Sasahara M, Nishijima K, Rheol.Acta., 17, 153 (1978)
Maron SH, Pierce PE, J. Colloid Sci., 11, 80 (1956)
Fenner RT, Polymer., 18, 632 (1977)
Kasaliwal GR, Goldel A, Potschke P, Heinrich G, Polymer., 52, 1029 (2011)

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[Related Articles]

[1] Crosby AJ, Lee JY, Polym. Rev., 47, 220 (2007)

[2] Liu TX, Phang IY, Shen L, Chow SY, Zhang WD, Macromolecules, 37(19), 7214 (2004)

[3] Vaisman L, Wagner HD, Marom G, Adv. Colloid Interface Sci., 128, 40 (2006)

[4] Villmow T, Potschke P, Pegel S, Haussler L, Kretzschmar B, Polymer., 49, 3501 (2008)

[5] Pegel S, Potschke P, Petzold G, Alig I, Dudkin SM, Lellinger D, Polymer., 49, 975 (2008)

[6] Chang TE, Kisliuk A, Rhodes SM, Brittain WJ, Sokolov AP, Polymer., 47, 7742 (2006)

[7] Villmow T, Kretzschmar B, Potschke P, Compos. Sci. Technol., 70, 2046 (2010)

[8] Frankel NA, Acrivos A, Chem. Eng. Sci., 22, 850 (1967)

[9] Mooney M, J. Colloid Sci., 6, 162 (1951)

[10] Thomas DG, J. Colloid Sci., 20, 275 (1965)

[11] Kitano T, Kataoka T, Shirota T, Rheol. Acta., 20, 208 (1981)

[12] Kataoka T, Kitano T, Sasahara M, Nishijima K, Rheol.Acta., 17, 153 (1978)

[13] Maron SH, Pierce PE, J. Colloid Sci., 11, 80 (1956)

[14] Fenner RT, Polymer., 18, 632 (1977)

[15] Kasaliwal GR, Goldel A, Potschke P, Heinrich G, Polymer., 52, 1029 (2011)