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Preparation and characterization of cellulose bromo-isobutyl ester based on filter paper

Authors
  • Wu, Rina1, 2
  • Wang, Qiuyu2
  • Liu, Huayu2
  • Wang, Gaosheng2
  • Lu, Peng1
  • 1 Guangxi University, China , (China)
  • 2 Tianjin University of Science & Technology, China , (China)
Type
Published Article
Journal
Nordic Pulp & Paper Research Journal
Publisher
De Gruyter
Publication Date
Dec 03, 2020
Volume
36
Issue
1
Pages
149–156
Identifiers
DOI: 10.1515/npprj-2020-0080
Source
De Gruyter
Keywords
Disciplines
  • Chemical technology/modifications
License
Yellow

Abstract

Cellulose bromo-isobutyl ester was prepared using filter paper as raw material through esterification reaction with 2-Bromoisobutyryl bromide (BIBB) in N, N-Dimethyl-formamide (DMF). Cellulose esters with different degree of substitution were obtained. FTIR result indicated the successful introduction of bromo isobutyryl group in cellulose to obtain cellulose ester (Cell-Br). The surface of modified filter paper become rough and grooves could be observed by SEM. The thermal stability of the cellulose ester decreased in comparison with unmodified filter paper. Besides, the hydrophobicity of the filter paper was improved and the water contact angle increased from 73.4° to 116.5° with increasing degree of substitution. The water vapor barrier property was improved by 26 %. Furthermore, it was also found the modified filter paper possessed antibacterial activity against S. aureus bacteria. The modified filter paper obtained could be potentially used in food packaging fields and the results provide a simple method to prepare functional filter paper.

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