Ionic Liquid Approach Toward Manufacture and Full Recycling of All-Cellulose Composites

被引：41

作者：

Spoerl, Johanna M. ^{[1
]}

Batti, Fabio ^{[1
]}

Vocht, Marc-Phillip ^{[1
]}

Raab, Raphael ^{[1
]}

Mueller, Alexandra ^{[1
]}

Hermanutz, Frank ^{[1
]}

Buchmeiser, Michael R. ^{[1
,2
]}

机构：

[1] DITF, Korschtalstr 26, D-73770 Denkendorf, Germany

[2] Univ Stuttgart, Inst Polymerchem, Lehrstuhl Makromol Stoffe & Faserchem, Pfaffenwaldring 55, D-70550 Stuttgart, Germany

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2018年 / 303卷 / 01期

关键词：

all-cellulose composites; biodegradable composites; cellulose; ionic liquids; recycling of composite materials; SURFACE SELECTIVE DISSOLUTION; FIBER; IMPACT; MATRIX; SIZE;

D O I：

10.1002/mame.201700335

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

All-cellulose composites (ACCs) are prepared from high-strength rayon fibers and cellulose pulp. The procedure comprises the use of a pulp cellulose solution in the ionic liquid (IL) 1-ethyl-3-methyl imidazolium acetate ([EMIM][OAc]) as a precursor for the matrix component. High-strength rayon fibers/fabrics are embedded in this solution of cellulose in the IL followed by removal of the IL. Different concentrations of cellulose in the IL are investigated and the mechanical properties of the final ACCs are determined via tensile, bending, and impact testing. ACCs prepared in this study show mechanical properties comparable to thermoplastic glass fiber-reinforced plastics. Apart from being bio-based, they possess several advantages such as biodegradability and full recyclability. The recycling of ACCs is successfully demonstrated in several cycles by using the recycled cellulose for subsequent matrix preparation.

引用

页数：8

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