PVA-AAc 용액을 사용한 메조페이스 핏치기반 그라파이트 폼의 제조 및 특성

김지현; 이상민; 정의경; 이영석; Ji-Hyun Kim; Sangmin Lee; Euigyung Jeong; Young-Seak Lee

Applied Chemistry for Engineering, Vol.26, No.6, 706-713, December, 2015

DOI10.14478/ace.2015.1102 Export Citation

PVA-AAc 용액을 사용한 메조페이스 핏치기반 그라파이트 폼의 제조 및 특성

Fabrication and Characteristics of Mesophase Pitch-Based Graphite Foams Prepared Using PVA-AAc Solution

김지현, 이상민, 정의경¹, 이영석 ^†

충남대학교 공과대학 바이오응용화학과
¹국방과학연구소

Ji-Hyun Kim, Sangmin Lee, Euigyung Jeong¹, and Young-Seak Lee^†

Department of Applied Chemistry and Biological Engineering, Chungnam National University, Daejeon 34134, Korea
¹The 4th R&D Institute-4, Agency for Defense Development, Daejeon 34134, Korea

E-mail:

초록

그라파이트 폼이 polyvinyl alcohol-acrylic acid (PVA-AAc) 용액에 다양한 함량의 메조페이스 핏치(mesophase pitch, MP)를 첨가한 후 열처리를 통해 제조되었다. 그라파이트 폼의 공극 크기는 슬러리 농도(고분자 용액에 첨가된 메조페이스 핏치의 함량)에 따라 조절되며, 그 열 전도도 및 압축강도는 각각의 조건에서 형성된 그라파이트 폼의 공극률에 의해서 조절됨을 확인하였다. 본 실험에서 얻어진 그라파이트 폼은 공극률 0.69에서 53.414 ± 0.002 W/mK의 가장 높은 열전도도 및 1.348 ± 0.864 MPa의 압축강도 값을 나타내었다. 메조페이스 핏치 기반의 그라파이트 폼의 열전도도는 등방성 핏치 기반의 그라파이트 폼에 비하여 흑연화 구조의 발달로 인하여 그 값이 23배로 크게 증가되었다.

Graphite foams (GFs) were prepared by adding different amounts of mesophase pitch (MP) into polyvinyl alcohol-acrylic acid (PVA-AAc) solution followed by the heat treatment. It was confirmed that the pore diameters of GFs were controlled by the slurry concentration, which was the mesophase content added in polymer solution, and their thermal conductivity and compressive strength were also controlled by porosities of GFs formed at different conditions. The resulting GFs in this study had the highest thermal conductivity of 53.414 ± 0.002 W/mK and compressive strength of 1.348 ± 0.864 MPa at 0.69 in porosity. The thermal conductivity of MP based GFs increased approximately 23 times higher than that of using isotropic pitch based GFs due to the developed graphitic structure.

Keywords:graphite foam;mesophase pitch;isotropic pitch;thermal conductivity;compressive strength

[References]

Inagaki M, Qiu J, Guo Q, Carbon, 87, 128 (2015)
Klett J, Hardy R, Romine E, Walls C, Burchell T, Carbon, 38, 953 (2000)
Chen C, Kennel EB, Stiller AH, Stansberry PG, Zondlo JW, Carbon, 44, 1535 (2006)
Chand S, J. Mater. Sci., 35(6), 1303 (2000)
Chen R, Yao R, Xia W, Zou R, Appl. Energy, 152, 183 (2015)
Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)
Zhai L, Liu X, Li T, Feng Z, Fan Z, Vacuum, 114, 21 (2015)
Calebrese C, Eisman GA, Lewis DJ, Schadler LS, Carbon, 48, 3939 (2010)
Cheng Y, Fang C, Su J, Yu R, Li T, J. Anal. Appl. Pyrolysis, 109, 90 (2014)
Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)
Always-Cooper RM, Anderson DP, Ogale AA, Carbon, 59, 40 (2013)
Lin W, Sunden B, Yuan J, Appl. Therm. Eng., 50, 1201 (2013)
Solmus I, Appl. Therm. Eng., 78, 605 (2015)
Straatman AG, Gallego NC, Thompson BE, Hangan H, Int. J. Heat Mass Transf., 49(11-12), 1991 (2006)
Focke WW, Badenhorst H, Ramjee S, Kruger HJ, Schalkwyk RV, Rand B, Carbon, 73, 41 (2014)
Liu H, Li T, Wang X, Zhang W, Zhao T, J. Anal. Appl. Pyrolysis, 110, 442 (2014)
Lafdi K, Almajali M, Huzayyin O, Carbon, 47, 2620 (2009)
Yadav A, Kumar R, Bhatia G, Verma GL, Carbon, 49, 3622 (2011)
Karthik M, Faik A, Doppiu S, Roddatis V, D’Ajuanno B, Carbon, 87, 434 (2015)
Kim JH, Lee YS, J. Ind. Eng. Chem., 30, 127 (2015)
Hou C, Zhang Q, Li Y, Wang H, Carbon, 50, 1959 (2012)
Zhao Z, Wang X, Qiu J, Lin J, Xu D, Zhang C, Lv M, Yang X, Rev. Adv. Mater. Sci., 36, 137 (2014)
Kumar S, Srivastava M, Carbon Lett., 16(3), 171 (2015)
Shin HK, Park M, Kim HY, Park SJ, Carbon Lett., 16(3), 219 (2015)
James L, Austin S, Moore CA, Stephens D, Walsh KK, Wesson GD, Carbon, 48, 2418 (2010)
Li S, Tian Y, Zhong Y, Yan X, Song Y, Guo Q, Shi J, Liu L, Carbon, 49, 618 (2011)
Kim JH, Lee YS, J. Ind. Eng. Chem., 10.1016/j.jiec.2015.09.003. (2015).
Pandey PK, Smitha P, Gajbhiye NS, J. Polym. Res., 15, 397 (2008)
Park MS, Ko Y, Jung MJ, Lee YS, Carbon Lett., 16(2), 121 (2015)
Karthik M, Faik A, Doppiu S, Roddatis V, D’Aguanno B, Carbon, 87, 434 (2015)
Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)
Chen Y, Chen BZ, Shi XC, Xu H, Hu YJ, Yuan Y, Shen NB, Carbon, 45, 2126 (2007)
Chollon G, Delettrez S, Langlais F, Carbon, 66, 18 (2014)
Leong KC, Li HY, Int. J. Heat Mass Transf., 54(25-26), 5491 (2011)
Bekoz N, Oktay E, Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process., 576, 82 (2013)
Araki T, Asano K, Awao T, Takita H, Method for heavying polycyclic substances, US Patent 3,718,574 (1973).
Calvo M, Garcia R, Arenillas A, Suarez I, Moinelo SR, Fuel, 84(17), 2184 (2005)
Watanabe F, Ishida S, Korai Y, Mochida I, Kato I, Sakai Y, Kamatsu M, Carbon, 37, 961 (1999)

[Referenced By]

[Related Articles]

[1] Inagaki M, Qiu J, Guo Q, Carbon, 87, 128 (2015)

[2] Klett J, Hardy R, Romine E, Walls C, Burchell T, Carbon, 38, 953 (2000)

[3] Chen C, Kennel EB, Stiller AH, Stansberry PG, Zondlo JW, Carbon, 44, 1535 (2006)

[4] Chand S, J. Mater. Sci., 35(6), 1303 (2000)

[5] Chen R, Yao R, Xia W, Zou R, Appl. Energy, 152, 183 (2015)

[6] Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)

[7] Zhai L, Liu X, Li T, Feng Z, Fan Z, Vacuum, 114, 21 (2015)

[8] Calebrese C, Eisman GA, Lewis DJ, Schadler LS, Carbon, 48, 3939 (2010)

[9] Cheng Y, Fang C, Su J, Yu R, Li T, J. Anal. Appl. Pyrolysis, 109, 90 (2014)

[10] Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)

[11] Always-Cooper RM, Anderson DP, Ogale AA, Carbon, 59, 40 (2013)

[12] Lin W, Sunden B, Yuan J, Appl. Therm. Eng., 50, 1201 (2013)

[13] Solmus I, Appl. Therm. Eng., 78, 605 (2015)

[14] Straatman AG, Gallego NC, Thompson BE, Hangan H, Int. J. Heat Mass Transf., 49(11-12), 1991 (2006)

[15] Focke WW, Badenhorst H, Ramjee S, Kruger HJ, Schalkwyk RV, Rand B, Carbon, 73, 41 (2014)

[16] Liu H, Li T, Wang X, Zhang W, Zhao T, J. Anal. Appl. Pyrolysis, 110, 442 (2014)

[17] Lafdi K, Almajali M, Huzayyin O, Carbon, 47, 2620 (2009)

[18] Yadav A, Kumar R, Bhatia G, Verma GL, Carbon, 49, 3622 (2011)

[19] Karthik M, Faik A, Doppiu S, Roddatis V, D’Ajuanno B, Carbon, 87, 434 (2015)

[20] Kim JH, Lee YS, J. Ind. Eng. Chem., 30, 127 (2015)

[21] Hou C, Zhang Q, Li Y, Wang H, Carbon, 50, 1959 (2012)

[22] Zhao Z, Wang X, Qiu J, Lin J, Xu D, Zhang C, Lv M, Yang X, Rev. Adv. Mater. Sci., 36, 137 (2014)

[23] Kumar S, Srivastava M, Carbon Lett., 16(3), 171 (2015)

[24] Shin HK, Park M, Kim HY, Park SJ, Carbon Lett., 16(3), 219 (2015)

[25] James L, Austin S, Moore CA, Stephens D, Walsh KK, Wesson GD, Carbon, 48, 2418 (2010)

[26] Li S, Tian Y, Zhong Y, Yan X, Song Y, Guo Q, Shi J, Liu L, Carbon, 49, 618 (2011)

[27] Kim JH, Lee YS, J. Ind. Eng. Chem., 10.1016/j.jiec.2015.09.003. (2015).

[28] Pandey PK, Smitha P, Gajbhiye NS, J. Polym. Res., 15, 397 (2008)

[29] Park MS, Ko Y, Jung MJ, Lee YS, Carbon Lett., 16(2), 121 (2015)

[30] Karthik M, Faik A, Doppiu S, Roddatis V, D’Aguanno B, Carbon, 87, 434 (2015)

[31] Prieto R, Louis E, Molina JM, Carbon, 50, 1904 (2012)

[32] Chen Y, Chen BZ, Shi XC, Xu H, Hu YJ, Yuan Y, Shen NB, Carbon, 45, 2126 (2007)

[33] Chollon G, Delettrez S, Langlais F, Carbon, 66, 18 (2014)

[34] Leong KC, Li HY, Int. J. Heat Mass Transf., 54(25-26), 5491 (2011)

[35] Bekoz N, Oktay E, Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process., 576, 82 (2013)

[36] Araki T, Asano K, Awao T, Takita H, Method for heavying polycyclic substances, US Patent 3,718,574 (1973).

[37] Calvo M, Garcia R, Arenillas A, Suarez I, Moinelo SR, Fuel, 84(17), 2184 (2005)

[38] Watanabe F, Ishida S, Korai Y, Mochida I, Kato I, Sakai Y, Kamatsu M, Carbon, 37, 961 (1999)