壳聚糖-SiO<sub>2</sub>仿生物矿化协同改性尾巨桉木材

doi:10.11896/cldb.19070157

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (5379KB)
Export: BibTeX | EndNote (RIS)

Abstract The biomimetic mineralization of Eucalyptus urophylla wood was modified by self-assembly of chitosan and SiO₂. Chitosan was grafted onto the cell wall of Eucalyptus wood, and polyhydroxyl SiO₂ was grafted alternately to improve the wood properties of Eucalyptus. The mechanical properties such as compression strength parallel to grain, impact toughness, abrasion resistance, hardness and thermal stability of modified Eucalyptus were tested. SEM, FTIR and XRD were used to study the microstructure and structure of materials. The results showed that compression strength parallel to grain, impact toughness, wear resistance and end face hardness properties were 85.91 MPa, 82.5 kJ/m², 18.30 mg/100r, 6 450 N, and increased by 54.8%,94.1%,24.8% and 110% respectively. Thermal stability carbon residue reached 48.21%, which increased 173% compared with blank Eucalyptus. Chitosan and SiO₂ co-modified Eucalyptus can form organic-inorganic hybrid structure to enhance the properties of wood. SEM showed that there was a three-dimensional network of organic and inorganic hybrid structures covering the pores and ducts inside the wood, and some SiO₂ particles were distributed between the wood fiber cell walls in the wood duct wall as spherical particles. XRD showed that SiO₂ particles enter into wood in amorphous state, compared with blank Eucalyptus, the diffraction peak strength and crystallinity of the modified material decreased slightly. After the formation of stable -CONH bond between chitosan and wood, Si-O-C bond was formed by electrostatic adsorption of SiO₂ particles.

Key words： biomimetic mineralization chitosan SiO₂ hybrid structure Eucalyptus wood modification

Published: 26 April 2020

CLC number:

TB332

Fund:This work was supported by the National Natural Science Foundation of China (31770606), Major Science and Technology Program of Hunan Province (2017NK1010).

Corresponding Authors: Guangming Yuan, professor, doctoral director, deputy dean, College of Material Science and Engineering, Central South University of Forestry & Technology. In 2008, he received his doctor of engineering degree in wood science and technology from the School of Mate-rials Science and Engineering, Central South University of Forestry and Science and Technology.

About author:: Shiyao Chengraduated from Northwest A&F University in June 2017 with a bachelor's degree in engineering. He studied for a master's degree in central south university of forestry science and technology in September 2017, mainly engaged in the research of wood functio-nal improvement.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Shiyao
	YUAN Guangming
	YANG Tao
	XIA Mingchu
	MU Mingming

Cite this article:

CHEN Shiyao,YUAN Guangming,YANG Tao, et al. Synergistic Modification of Eucalyptus Urophylla Wood by Chitosan-SiO₂ Biomimetic Mineralization[J]. Materials Reports, 2020, 34(10): 10182-10186.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.19070157 OR http://www.mater-rep.com/EN/Y2020/V34/I10/10182

1 Merk V M, Chanana M, Keplinger T, et al. Green Chemistry,2015,17(3),1423.
2 Lu Y, Feng M, Zhan H B. Cellulose, 2014,21(6),4394.
3 Meyers M A, McKittrick J, Chen P Y. Science, 2013, 339,773.
4 Jackson A, Vincent J, Turner R. Proceedings of the Royal Society of London B: Biological Science, 1998, 234,415.
5 Ma Y F, Qiao L, Feng Q L.Journal of Inorganic Materials, 2013, 28(1),109(in Chinese).
马玉菲, 乔莉, 冯庆玲. 无机材料学报, 2013, 28(1),109.
6 Mao L B, Gao H L, Yao H B, et al. Science, 2016,354,107.
7 Bonderer L J, Studart A R, Gauckler L J. Science, 2008, 319,1069.
8 Wang L J, Guo Z M, Li T J, et al.Progress in Chemistry, 1999, 19(2),119(in Chinese).
王荔军,郭中满,李铁津,等. 化学进展, 1999, 19(2),119.
9 Liang N N, Xia L.Polymer Bulletin, 2014(4),1(in Chinese).
梁宁宁, 夏琳. 高分子通报,2014(4),1.
10 Zhang Y X, Liao J G, Li Y Q, et al. Materials Reports A:Review Papers, 2017, 31(9),53(in Chinese).
张永祥, 廖建国, 李艳群, 等. 材料导报:综述篇, 2018,31(9),53.
11 Kong L, Gao Y, Lu G, et al.European Polymer Journal, 2006, 42,3171.
12 Beppu M M,Santana C C. Materials Science and Engineering: C, 2003, 23(5),651.
13 Sun Z Z, Cai R R, Pu X M, et al. Journal of Functional Materials, 2011, 42(1),128(in Chinese).
孙珍珍, 蔡汝汝, 蒲曦鸣, 等. 功能材料, 2011, 42(1),128.
14 Lu Z H, Ma Y D, Zhao D M, et al. Materials Review A:Research Papers,2013,27(12),88(in Chinese).
卢志华, 马育栋, 赵冬梅, 等. 材料导报:研究篇,2013,27(12),88.
15 Shabir M M, Hübert T, Sabel M, et al. Journal of Materials Science, 2012, 47(19),6849.
16 Shabir M M, Hübert T, Schartel B, et al.Journal of Sol-Gel Science and Technology, 2012, 64(2),452.
17 Chen H Y, Lang Q, Bi Z, et al. Holzforschung,2013,68(1),45.
18 Dong L D, Wei C P, Li Z T,et al. Chinese Optics, 2018,11(5),773(in Chinese).
董丽丹,魏长平,李中田,等.中国光学,2018,11(5),773.