Effect of Hydrophobization of Paper by Gas Grafting on Physical Properties of Recycled Paper

Kyu Hwan Noh; Yu-Rim Shin; Hyeon Ji Kang; Han Byul Kim; Jeong-Yong Ryu

doi:10.7584/JKTAPPI.2023.4.55.2.3

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2023 Vol.55, Issue 2 Next Page

Research Article

Effect of Hydrophobization of Paper by Gas Grafting on Physical Properties of Recycled Paper 종이의 기상 그라프트 소수화 처리가 재생지의 물성에 미치는 영향

30 April 2023. pp. 3-9

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Abstract

In this study, Hw-BKP handsheets were prepared and treated with gas grafting to achieve hydrophobicity. The study examined the changes in paper strength and water resistance after repeating the recycling and gas grafting process. However, the gas grafting treatment caused a decrease in the strength of the handsheet, presumably due to deterioration of the handsheet by hydrochloric acid, by-product from grafting. Furthermore, the fatty acid reacted on the surface of the fiber acted as an interfering factor with the hydrogen bonding between the fibers, resulting in a reduction in the strength of the handsheet after recycling. Although the water resistance of the handsheet decreased after its first recycling following gas grafting, the study confirmed that repeating the grafting process twice enhanced the handsheet's water resistance even after recycling. Therefore, recycling the grafted paper and repeating the grafting treatment once more is an effective method of hydrophobization to minimize the cellulose fibers' wetting in water. Although the beating treatment restored the recycled handsheet's absorbency, it did not significantly recover the strength or formation of the recycled paper.

Keywords

Hydrophobization

gas grafting

physical properties

recycled paper

References

Kalka, S., Huber, T., Steinberg, J., Baronian, K., Müssig, J., and Staiger, M. P., Biodegradability of all-cellulose composite laminates, Composites Part A 59:37-44 (2014). 10.1016/j.compositesa.2013.12.012

Song, J. H., Murphy, R. J., Narayan, R., and Davies, G. B. H., Biodegradable and compostable alternatives to conventional plastics, Philosophical Transaction of the Royal Society B 364:2127-2139 (2009). 10.1098/rstb.2008.028919528060PMC2873018

Su, Y., Yang, B., Liu, J., Sun, B., Cao, C., Zou, X., Lutes, R., and He, Z., Prospects for replacement of some plastics in packaging with lignocellulose materials: a brief review, BioResources 13(2):4550-4576 (2018). 10.15376/biores.13.2.Su

Wang, Y., Wang, X., Xie, Y., and Zhang, K., Functional nanomaterials through esterifica- tion of cellulose: a review of chemistry and application, Cellulose 25:3703-3731 (2018). 10.1007/s10570-018-1830-3

Bezerra, R. D. S., Teixeira, P. R. S., Teixeira, A. S. N. M., Eiras, C., Osajima, J. A., and Silva Filho, E. C., Chemical functionalization of cellulose materials: main reaction and application in the contaminants of removal of aqueous medium, In Cellulose-Fundamental Aspects and Current Trends 4:93-113 (2015). 10.5772/61431

Ma, H., Hsiao, B. S., and Chu, B., Modified cellulose, In Encyclopedia of Membranes, Springer, Drioli, E. and Giorno, L. (eds), Berlin, Heidelberg, Germany (2016). 10.1007/978-3-642-40872-4_390-1

Roy, D., Semsarilar, M., Guthrie, J. T., and Perrier, S., Cellulose modification by polymer grafting: a review, Chemical Society Reviews 38:2046-2064 (2009). 10.1039/b808639g19551181

Kulomaa, T., Matikainen, J., Karhunen, P., Heikkilä, M., Fiskari, J., and Kilpeläinen, L., Cellulose fatty acid esters as sustainable film materials - Effect of side chain structure on barrier and mechanical properties, RSC Advances 5:80702-80708 (2015). 10.1039/C5RA12671A

Samain, D., Method for treating a solid material to make it hydrophobic, material obtained and uses, Europe patent PTC/FR1998/001808 (1998).

Park, M. A., Choi, K. H., Cho, B. U., Effects of gas grafting treatment with different amounts of palmitoyl chloride on properties of CNF-coated paper, Journal of Korea TAPPI 52(1):55-65 (2020). 10.7584/JKTAPPI.2020.02.52.1.55

Choi, K. H., Choi, J. S., Lee, C. W., Lee, K. S., Ryu, J. Y., Study on the gas grafting efficiency of paper according to carbon number of fatty acid chloride, Journal of Korea TAPPI 52(4): 5-11 (2020). 10.7584/JKTAPPI.2020.08.52.4.5

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 : 55
No :2
Pages :3-9
Received Date : 2023-02-20
Revised Date : 2023-03-20
Accepted Date : 2023-03-22
DOI :https://doi.org/10.7584/JKTAPPI.2023.4.55.2.3

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

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