Crystal structural property and chemical bonding nature of cellulose nanocrystal formed by high-pressure homogenizer (고압 균질기를 이용하여 형성된 셀룰로오스 나노결정의 결정 구조 및 화학적 결합 특성 연구)

Choi Chel Jong (최철종); Nae-Man Park (박래만); Shim Kyu Hwan (심규환)

doi:10.6111/JKCGCT.2024.34.3.079

Crystal structural property and chemical bonding nature of cellulose nanocrystal formed by high-pressure homogenizer

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2024, 34(3), pp.79~85
DOI : 10.6111/JKCGCT.2024.34.3.079
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : June 7, 2024
Accepted : June 13, 2024
Published : June 30, 2024

Choi Chel Jong ¹, Nae-Man Park ², Shim Kyu Hwan ¹

¹전북대학교
²한국전자통신연구원

Accredited

ABSTRACT

We investigated the crystal structural property and chemical bonding nature of cellulose nanocrystal extracted directly from cotton cellulose using high-pressure homogenizer. The nanowire-like cellulose nanocrystals were randomly distributed in the form of a dense mesh. Based on calculating the interplanar distance of the Bragg-diffracted crystal plane observed through X-ray diffraction (XRD) analysis, it was found that the cellulose nanocrystals formed by high-pressure homogenizer had a monoclinc crystal structure, corresponding to the cellulose Iβ sub-polymorph. Solid-state nuclear magnetic resonance (NMR) analysis for the quantitatively evaluation of the amorphous region in cellulose nanocrystals revealed that the crystallinity index of cellulose nanocrystals was calculated to be 53.06 %. The O/C ratio of the surface of cellulose nanocrystal was estimated to be 0.82. Further analysis showed that chemical bonds of C-C bond or C-H bond, C-O bond, O-C-O bond or C=O bond, and O-C=O bond were the main chemical bonding states of the cellulose nanocrystal surface.

KEYWORDS

Cellulose nanocrystal, High-pressure homogenizer, Crystal structure, Crystallinity index, Chemical bonding state

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Journal of the Korean Crystal Growth and Crystal Technology 2025 KCI Impact Factor : 0.14 KCI-WoS Impact Factor : 0.45

Crystal structural property and chemical bonding nature of cellulose nanocrystal formed by high-pressure homogenizer

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Journal of the Korean Crystal Growth and Crystal Technology 2025 KCI Impact Factor : 0.14 KCI-WoS Impact Factor : 0.45

Crystal structural property and chemical bonding nature of cellulose nanocrystal formed by high-pressure homogenizer

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