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毛竹纳米纤维素的烷基化改性(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2016年02期
Page:
144-148
Column:
研究论文
publishdate:
2016-03-30

Article Info:/Info

Title:
Research on the alkylation modification of cellulose nanofiber separated from moso bamboo
Article ID:
1000-2006(2016)02-0144-05
Author(s):
HE Wen1 LI Jiping2 JIN Hui2 Tian Jiaxi2
1.College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;
2.College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
Keywords:
cellulose nanofiber(CNF) ethanol toluene(3-Aminopropyl)triethoxysilane(KH-570) alkylation modification relative crystallinity moso bamboo
Classification number :
S781
DOI:
10.3969/j.issn.1000-2006.2016.02.024
Document Code:
A
Abstract:
In order to improve the dispersity and interfacial bonding in the nonpolar polymers, cellulose nanofiber(CNF)isolated from moso bamboo were modified with(3-Aminopropyl)triethoxysilane(KH-570)dissolved in the ethanol and toluene, respectively. The properties of the modified CNF were measured by FTIR, X-ray diffractometer(XRD), energy dispersive analysis of X-rays(EDAX)and X-ray photoelectron spectrometer(XPS). The results showed that hydroxyl group in cellulose nanofibers reacted with the Si-OH in KH-570, and the cellulose crystal structure remained unchangeable. However, the relative crystallinity of CNF decreased. The amount of C and O atoms on the CNF surface decreased with the alkylation modification. The results also showed that modified CNF performed better when KH-570 were dissolved in ethanol than in toluene.

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Last Update: 2016-04-01