Poly(dimethyldiallylammonium chloride) (polyDADMAC) assisted cellulase pretreatment for microfibrillated cellulose (MFC) preparation and MFC analysis-Reference-Cited by-同舟云学术

Poly(dimethyldiallylammonium chloride) (polyDADMAC) assisted cellulase pretreatment for microfibrillated cellulose (MFC) preparation and MFC analysis

Published:2018-03-24 Issue:7 Volume:72 Page:531-538
ISSN:1437-434X
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Zhang Zhengjian¹,Zhang Qilian¹,Chen Yunzhi²,Li Zhihong²

Affiliation:

1. College of Packaging and Printing Engineering , Tianjin University of Science and Technology , China Light Industry Key Laboratory of Food Packaging Materials and Technology , Tianjin 300222 , P. R. China , Phone: +86 02260600881

2. College of Packaging and Printing Engineering , Tianjin University of Science and Technology , China Light Industry Key Laboratory of Food Packaging Materials and Technology , Tianjin 300222 , P. R. China

Abstract

Abstract Microfibrillated cellulose (MFC) preparation was investigated by means of cellulase pretreatment aided by poly(dimethyldiallylammonium chloride) (polyDADMAC) as an additive. The effect of polyDADMAC on the adsorption of cellulase onto the cellulose fibers, and the properties of MFC and MFC films are described. The additive improved the adsorption of cellulase onto cellulose fibers. Compared to the control, at an addition level of polyDADMAC of 0.789 ml g−1, the crystallinity, aspect ratio, the specific surface area of MFC and, the elongation at break and tensile strength of MFC films are increased, while the oxygen permeability coefficient of the MFC films is decreased. The optimal conditions for preparation of MFC by cellulase pretreatment were: pulp consistency 10%, cellulase dosage 10 µ g−1, pretreatment time 16 h and 0.789 ml g−1 polyDADMAC. In summary, polyDADMAC-assisted cellulase pretreatment enhances the efficiency of the cellulase pretreatment of cellulose fibers and improves the performance of MFC and the MFC films.

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2017-0152/pdf

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