황산을 이용한 미세섬유화 공정이 셀룰로오스 나노섬유의 코팅 및 배리어 특성에 미치는 영향

곽효원; 허재은; 허경아; 이호현; 진형준; 심봉섭; Hyo Won Kwak; Jae Eun Heo; Kyeonga Her; Hohyun Lee; Hyoung-Joon Jin; Bong Sup Shim

Polymer(Korea), Vol.43, No.1, 32-37, January, 2019

DOI10.7317/pk.2019.43.1.32 Export Citation

황산을 이용한 미세섬유화 공정이 셀룰로오스 나노섬유의 코팅 및 배리어 특성에 미치는 영향

Effect of Post-sulfuric Acid Nano-fibrillization Process on the Coating and Barrier Properties of Cellulose Nanofibril

곽효원, 허재은¹, 허경아¹, 이호현, 진형준, 심봉섭^{1, †}

인하대학교 고분자공학과
¹인하대학교 화학·화학공학융합학과

Hyo Won Kwak, Jae Eun Heo¹, Kyeonga Her¹, Hohyun Lee, Hyoung-Joon Jin, and Bong Sup Shim^{1, †}

Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea
¹Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea

E-mail:

초록

셀룰로오스 나노섬유는 수십 나노미터 크기의 직경을 갖는 나노 소재로서 뛰어난 기계적 물성과 배리어 성능을 가지고 있기 때문에 패키징 산업에서 각광받고 있는 물질이다. 이러한 셀룰로오스 나노섬유는 원재료 및 나노섬유화 공정 방식에 따라 모폴로지 및 결정화도를 비롯한 이화학적 성질이 영향을 받는다. 본 연구에서는 황산으로 후처리를 함으로써 그 농도에 따라 이화학적 성질이 다른 셀룰로오스 나노섬유 코팅용액을 제조하였고, 이화학적 성질에 따른 셀룰로오스 나노 섬유의 코팅성, 투명성, 그리고 산소 및 수분 차단성을 조사하였다. 그 결과, 황산용액의 농도가 높아질수록 셀룰로오스 나노섬유의 직경 및 길이가 줄어들고 결정성이 높아지며 나노섬유 표면에 음전하가 도입되는 경향을 보였다. 또한 이와 같이 셀룰로오스의 직경 감소 및 음전하 도입으로 인하여 코팅성 및 투명도가 증가하였으며 조밀한 코팅이 가능케 되어 산소 차단성이 증진되는 것을 확인할 수 있었다.

Cellulose nanofibrils are nano-scale materials with a diameter of several tens of nanometers. Cellulose nanofibrils' excellent mechanical and barrier properties make them attractive materials in the packaging industry. The morphology and crystallinity of obtained nano-cellulose greatly depend on the raw materials and the nano-fibrilization process. In this study, we investigated the effect of morphology and crystal structure of cellulose nanofibrils on coating performance, transparency, and barrier properties. Cellulose nanofibrils with a narrow diameter, high crystallinity and negative ion were fabricated as the concentration of the sulfuric acid was increased. As a result, post-treated cellulose nanofibrils could be easily coated due to narrow diameter and introduction of negative ion, and enhance oxygen barrier properties via the densely interconnected nanofiber surface.

Keywords:cellulose nanofibril;sulfuric acid treatment;oxygen barrier;coating;crystallinity

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[Referenced By]

[1] Yatigala NS, Bajwa DS, Bajwa SG, Compos. Pt. A-Appl. Sci. Manuf., 107, 315 (2018)

[2] Lee HV, Hamid SBA, Zain SK, Sci. World J., 2014, 1 (2014)

[3] Gilfillan WN, Moghaddam L, Doherty WOS, Cellulose, 21, 2695 (2014)

[4] George J, Sabapathi S, Nanotechnol. Sci. Appl., 8, 45 (2015)

[5] Sofla MRK, Brown RJ, Tsuzuki T, Rainey TJ, Adv. Nat. Sci: Nanosci. Nanotechnol., 7, 035004 (2016)

[6] Ummartyotin S, Manuspiya H, Renew. Sust. Energ. Rev., 41, 402 (2015)

[7] Wulandari WT, Rochliadi A, Arcana IM, IOP Conf. Ser.: Mater. Sci. Eng., 107, 012045 (2016)

[8] Abdul Khalil HPS, Davoudpour Y, Islam MN, Mustapha A, Sudesh K, Dungani R, Jawaid M, Carbohydr. Polym., 99, 649 (2014)

[9] Zhang K, Li Z, Kang W, Deng N, Yan J, Ju J, Liu Y, Cheng B, Carbohydr. Polym., 183, 62 (2018)

[10] Stumpf TR, Yang X, Zhang J, Cao X, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 82, 372 (2018)

[11] Wang S, Jiang F, Xu X, Kuang Y, Fu K, Hitz E, Hu L, Adv. Mater., 29, 170249 (2017)

[12] Pei A, Zhou Q, Berglund LA, Compos. Sci. Technol., 70, 815 (2010)

[13] Youssef AM, El-Sayed SM, Carbohydr. Polym., 193, 19 (2018)

[14] Ferrer A, Pal L, Hubbe M, Ind. Crop. Prod., 95, 574 (2017)

[15] Azeredo HMC, Rosa MF, Mattoso LHC, Ind. Crop. Prod., 97, 664 (2017)

[16] Oksman K, Mathew AP, Bondeson D, Kvien I, Compos. Sci. Technol., 66, 2776 (2006)

[17] Chen L, Wang Q, Hirth K, Baez C, Agarwal UP, Zhu JY, Cellulose, 22, 1753 (2015)

[18] Shaheen TI, Emam HE, Int. J. Biol. Macromol., 107, 1599 (2018)

[19] Sebe G, Ham-Pichavant F, Ibarboure E, Koffi ALC, Tingaut P, Biomacromolecules, 13(2), 570 (2012)

[20] Low LE, Tey BT, Ong BH, Chan ES, Tang SY, RSC Adv., 6, 113132 (2016)

[21] Du L, Wang J, Zhang Y, Qi C, Wolcott MP, Yu Z, Nanomaterials, 7, 1 (2017)

[22] Lai JN, Sunderland B, Xue JM, Yan S, Zhao WJ, Folkard M, Michael BD, Wang YG, Appl. Surf. Sci., 252(10), 3375 (2006)

[23] Zhu H, Parvinian S, Preston C, Vaaland O, Ruan Z, Hu L, Nanoscale, 5, 3787 (2013)

[24] Herrera MA, Sirvio JA, Mathew AP, Oksman K, Mater. Des., 93, 19 (2016)

[25] Belbekhouche S, Bras J, Siqueira G, Chappey C, Lebrun L, Khelifi B, Marais S, Dufresne A, Carbohydr. Polym., 83, 1740 (2011)

[26] Fukuzumi H, Saito T, Isogai A, Carbohydr. Polym., 93, 172 (2013)

[27] Mousavi SMM, Afra E, Tajvidi M, Bousfield DW, Dehghani-Firouzabadi M, Cellulose, 24, 3001 (2017)

[28] Fotie G, Rampazzo R, Ortenzi MA, Checchia S, Fessas D, Piergiovanni L, Polymers, 9, 415 (2017)