탄소섬유/ABS 복합재료의 기계적 및 충격 특성에 미치는 PEI로 개질한 MWCNT에 의한 탄소섬유 코팅의 영향: 압출펠렛과 LFT펠렛 비교

이동규; 조동환; Dongkyu Lee; Donghwan Cho

Polymer(Korea), Vol.46, No.1, 36-46, January, 2022

DOI10.7317/pk.2022.46.1.36 Export Citation

탄소섬유/ABS 복합재료의 기계적 및 충격 특성에 미치는 PEI로 개질한 MWCNT에 의한 탄소섬유 코팅의 영향: 압출펠렛과 LFT펠렛 비교

Effect of Carbon Fiber Coating with PEI-Modified MWCNT on the Mechanical and Impact Properties of Carbon Fiber/ABS Composites:Comparisons of Extruded Pellet and LFT Pellet

이동규, 조동환^†

금오공과대학교 고분자공학과

Dongkyu Lee, and Donghwan Cho^†

Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea

E-mail:

초록

본 연구에서는 polyethyleneimine(PEI)을 사용하여 multi-walled carbon nanotube(MWCNT)를 개질하고, 이를 코팅한 탄소섬유와 acrylonitrile-butadiene-styrene(ABS)수지를 사용하여 압출펠렛과 long fiber thermoplastic(LFT) 펠렛을 각각 제조하고, 사출성형공정을 통해 탄소섬유/ABS 복합재료를 제조하였다. 복합재료의 섬유길이분포, 기계적 및 충격 특성에 미치는 MWCNT 코팅의 영향을 조사하였다. PEI로 개질한 MWCNT로 코팅한 탄소섬유를 사용하여 압출펠렛과 LFT펠렛으로 제조한 복합재료는 기계적 특성과 충격저항성에서 두드러진 증가를 보여주었다. 압출펠렛보다 LFT펠렛을 사용하여 제조한 복합재료에서 상대적으로 높은 탄소섬유의 길이분포와 종횡비를 나타내었다. 결과적으로 이러한 현상이 복합재료의 인장특성, 굴곡특성 및 충격특성 향상에 중요하게 기여하였으며, Izod 충격강도에서 물성 향상효과가 가장 뚜렷하게 나타났다.

In the present study, carbon fiber coated with multi-walled carbon nanotube (MWCNT), which was modified using a cationic polyethyleneimine (PEI), and acrylonitrile-butadiene-styrene (ABS) resin were used to prepare extruded pellets and long fiber thermoplastic (LFT) pellets, and then carbon fiber/ABS composites were fabricated by injection molding process. The effect of carbon fiber coating with MWCNT on the fiber length distribution, and mechanical and impact properties of resulting composites was investigated. The mechanical properties and impact resistance of the composite prepared by extruded pellets and LFT pellets containing carbon fiber coated with PEI-modified MWCNT were markedly increased. Compared to the composite made with extruded pellets, the composite made with LFT pellets exhibited highly increased length distribution and aspect ratio of carbon fiber. As a result, they significantly contributed to improve the tensile, flexural, and impact properties of the composite, indicating the most profound property improvement on the Izod impact strength.

Keywords:multi-walled carbon nanotube coating;polyethyleneimine;carbon fiber/acrylonitrile-butadiene-styrene composites;processing;properties

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[3] Han KH, Lee SH, Kim TS, Song KH, KooCM, Kim WN, Polym. Korea, 45(2), 185 (2021)

[4] Jung S, Cho D, Composites Part B, 187, 107861 (2020)

[5] Lim SJ, Cheon J, Kim M, Composites Part A, 137, 105989 (2020)

[6] Obande WO, Bradaigh CM, Ray D, Composites Part B, 215, 108771 (2021)

[7] Hwang D, Lee SG, Cho D, Polymers, 13, 2298 (2021)

[8] Lee H, Cho D, J. Appl. Polym. Sci., 138, 50674 (2021)

[9] Morgan P, Carbon Fibers and Their Composites; Taylor & Francis: Boca Raton, FL, USA, 2005.

[10] Lee H, Ohsawa I, Takahashi J, Appl. Surf. Sci., 328, 241 (2015)

[11] Pathak AK, Borah M, Gupta A, Yokozeki T, Dhakate SR, Compos. Sci. Technol., 135, 28 (2016)

[12] Moore JD, Composites, 4, 118 (1973)

[13] Kumar V, Singh R, Ahuja IPS, Mater. Res. Express, 7, 015208 (2020)

[14] Li J, Zhang YF, J. Reinf. Plast. Compos., 29, 1727 (2009)

[15] Hwang DK, Cho DH, J. Ind. Eng. Chem., 80, 335 (2019)

[16] Lopes BJ, d'Almeida JRM, Mater. Today: Proceed., 8, 719 (2019)

[17] Adole O, Anguilano L, Minton T, Campbell J, Sean L, Valisios S, Tarverdi K, Polym. Test, 91, 106467 (2020)

[18] Sun Z, Zhao ZK, Zhang YY, Li YQ, Fu YQ, Sun BG, Shi HQ, Huang P, Hu N, Fu SY, Compos. Sci. Technol., 201, 108498 (2021)

[19] Tseng HC, Chang RY, Hsu CH, Compos. Sci. Technol., 150, 181 (2017)

[20] Zhang Q, Zhang J, Wu L, Int. J. Impact Eng., 122, 374 (2018)

[21] Holmes M, Reinf. Plast., 63, 262 (2019)

[22] Henning F, Ernst H, Brussel R, Reinf. Plast., 49, 24 (2005)

[23] Kumar KS, Ghosh AK, Bhatnagar N, Polym. Compos., 28, 259 (2007)

[24] Goel A, Chawla KK, Vaidya UK, Chawla N, Koopman M, Mater. Charact., 60, 537 (2009)

[25] Bondy M, Pinter P, Altenhof W, Mater. Des., 122, 184 (2017)

[26] Paiva MC, Zhou B, Fernando KAS, Lin Y, Kennedy JM, Sun YP, Carbon, 42, 2849 (2004)

[27] Liu P, Eur. Polym. J., 41, 2693 (2005)

[28] Datsyuk V, Kalyva M, Papagelis K, Parthenios J, Tasis D, Carbon, 46, 833 (2008)

[29] Shen J, Huang W, Wu L, Hu Y, Ye M, Compos. Sci. Technol., 67, 3041 (2007)

[30] Cheon J, Yoon BI, Cho D, Carbon Lett., 26, 107 (2018)

[31] Cheon JS, Cho DH, Macromol. Res., 28(9), 881 (2020)

[32] Kamae T, Drzal LT, Composites Part A, 43, 1569 (2012)

[33] Lee D, Kim Y, Kwon OH, Park WH, Cho D, Carbon Lett., 31, 407 (2021)

[34] Yun CH, Lee HS, Polym. Sci. Technol., 18(1), 4 (2007)

[35] Aviles F, Cauich-Rodriguez JV, Moo-Tah L, May-Pat A, Vargas-Coronado R, Carbon, 47, 2970 (2009)

[36] Tehrani M, Boroujeni AY, Hartman TB, Haugh TP, Case SW, Al-Haik MS, Compos. Sci. Technol., 75, 42 (2013)

[37] Schemme M, Reinf. Plast., 52, 32 (2008)

[38] Bondy M, Altenhof W, Int. J. Impact Eng., 111, 66 (2018)