Hydrophobization of Cellulose Nanofibrils by Silylation under an Aqueous System

Hyeonji Park; Simyub Yook; Shin Young Park; Hye Jung Youn

doi:10.7584/JKTAPPI.2018.06.50.3.72

All Issue

2018 Vol.50, Issue 3 Preview Page Next Page

Hydrophobization of Cellulose Nanofibrils by Silylation under an Aqueous System 수계에서 반응 가능한 실란화를 통한 셀룰로오스 나노피브릴의 소수화

30 June 2018. pp. 72-77

PDF XML

Abstract

Cellulose nanofibrils (CNF) is a renewable material, which has a high aspect ratio, large specific surface area and high mechanical strength. However, since the hydrophilicity of CNF limits the expansion of the application, CNF is required to be hydrophobized in some cases. In this study, silylation of CNF under an aqueous system was investigated in order to increase the hydrophobicity of CNF. Methyltrimethoxysilane (MTMS) was selected as a silylating agent. The hydrophobicity of CNF was greater under acidic conditions and at a 1:1 oven-dried weight ratio of CNF and MTMS. The excessive amount of MTMS did not enhance the hydrophobicity of CNF. Curing treatment should be followed by the silylation of CNF. The hydrophobization of CNF could be carried out successfully under an aqueous system without an organic solvent.

Keywords

Cellulose nanofibrils

silylation

film

hydrophobicity

aqueous system

References

Literature Cited

K. Missoum, M. N. Belgacem and J. Bras, Materials, Nanofibrillated cellulose surface modification: A review, 6(5); 1745-1766 (2013)

Missoum, K., Belgacem, M. N., and Bras, J., Nanofibrillated cellulose surface modification: A review, Materials 6(5):1745-1766 (2013).

10.3390/ma6051745

A. Ashori, M. Babaee, M. Jonoobi and Y. Hamzeh, Carbohydrate Polymers, Solvent-free acetylation of cellulose nanofibers for improving compatibility and dispersion, 102; 369-375 (2014)

Ashori, A., Babaee, M., Jonoobi, M., and Hamzeh, Y., Solvent-free acetylation of cellulose nanofibers for improving compatibility and dispersion, Carbohydrate Polymers 102: 369-375 (2014).

10.1016/j.carbpol.2013.11.067

M. Andresen and P. Stenius, Journal of Dispersion Science and Technology, Water-in-oil emulsions stabilized by hydrophobized microfibrillated cellulose, 28(6); 837-844 (2007)

Andresen, M., and Stenius, P., Water-in-oil emulsions stabilized by hydrophobized microfibrillated cellulose, Journal of Dispersion Science and Technology 28(6):837-844 (2007).

10.1080/01932690701341827

Z. Zhang, G. Sèbe, D. Rentsch, T. Zimmermann and P. Tingaut, Chemistry of Materials, Ultralightweight and flexible silylated nanocellulose sponges for the selective removal of oil from water, 26(8); 2659-2668 (2014)

Zhang, Z., Sèbe, G., Rentsch, D., Zimmermann, T., and Tingaut, P., Ultralightweight and flexible silylated nanocellulose sponges for the selective removal of oil from water, Chemistry of Materials 26(8):2659-2668 (2014).

10.1021/cm5004164

M. Zanini, A. Lavoratti, L. K. Lazzari, D. Galiotto, M. Pagnocelli, C. Baldasso and A. J. Zattera, Cellulose, Producing aerogels from silanizied cellulose nanofiber suspension, 24(2); 769-779 (2017)

Zanini, M., Lavoratti, A., Lazzari, L. K., Galiotto, D., Pagnocelli, M., Baldasso, C., and Zattera, A. J., Producing aerogels from silanizied cellulose nanofiber suspension, Cellulose 24(2):769-779 (2017).

10.1007/s10570-016-1142-4

Z. Zhang, P. Tingaut, D. Rentsch, T. Zimmermann and G. Sebe, ChemSusChem, Controlled silylation of nanofibrillated cellulose in water: Reinforcement of a model polydimethylsiloxane network, 8(16); 2681-2690 (2015)

Zhang, Z., Tingaut, P., Rentsch, D., Zimmermann, T., and Sebe, G., Controlled silylation of nanofibrillated cellulose in water: Reinforcement of a model polydimethylsiloxane network, ChemSusChem 8(16):2681-2690 (2015).

10.1002/cssc.201500525

Y. Xie, C. A. Hill, Z. Xiao, H. Militz and C. Mai, Composites Part A: Applied Science and Manufacturing, Silane coupling agents used for natural fiber/polymer composites: A review, 41(7); 806-819 (2010)

Xie, Y., Hill, C. A., Xiao, Z., Militz, H., and Mai, C., Silane coupling agents used for natural fiber/polymer composites: A review, Composites Part A: Applied Science and Manufacturing 41(7):806-819 (2010).

10.1016/j.compositesa.2010.03.005

H. Sai, R. Fu, L. Xing, J. Xiang, Z. Li, F. Li and T. Zhang, ACS Applied Materials & Interfaces, Surface modification of bacterial cellulose aerogels’ web-like skeleton for oil/water separation, 7(13); 7373-7381 (2015)

Sai, H., Fu, R., Xing, L., Xiang, J., Li, Z., Li, F., and Zhang, T., Surface modification of bacterial cellulose aerogels’ web-like skeleton for oil/water separation, ACS Applied Materials & Interfaces 7(13):7373-7381 (2015).

10.1021/acsami.5b00846

M. Abdelmouleh, S. Boufi, M. N. Belgacem, A. P. Duarte, A. B. Salah and A. Gandini, International Journal of Adhesion and Adhesives, Modification of cellulosic fibres with functionalised silanes: development of surface properties, 24(1); 43-54 (2014)

Abdelmouleh, M., Boufi, S., Belgacem, M. N., Duarte, A. P., Salah, A. B., and Gandini, A., Modification of cellulosic fibres with functionalised silanes: development of surface properties, International Journal of Adhesion and Adhesives 24(1):43-54 (2014).

10.1016/s0143-7496(03)00099-x

Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 50
No :3
Pages :72-77
Received Date : 2018-06-06
Revised Date : 2018-06-23
Accepted Date : 2018-06-25
DOI :https://doi.org/10.7584/JKTAPPI.2018.06.50.3.72

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

All Issue

Literature Cited