期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 2, 期 10, 页码 2363-2370出版社
AMER CHEMICAL SOC
DOI: 10.1021/sc5003787
关键词
Microwave-assisted synthesis; Fiber-spinning; Cellulose carbamate; NaOH/ZnO aqueous solution; Cellulose multifilament
资金
- National Natural Science Foundation of China [51273151]
- New Century Excellent Talents in University of China [NCET-11-0415]
- Natural Science Foundation of Hubei Province [2009CDA040]
- Japan Society for the Promotion of Science (JSPS) Invitation Fellowship for Research in Japan
In the cellulose industry, the viscose process is still occupying the leading position, although this process generates several environmentally hazardous byproducts. Here we report a novel method for the production of cellulose multifilament from cellulose carbamate (CC) on a pilot scale. In this method, CC was first prepared efficiently by microwave heating; it was then dissolved in NaOH/ZnO aqueous solutions through a freezing-thawing process. Wet spinning of the CC solution was performed on a pilot-scale machine. The cellulose multifilament displayed a dense circular microstructure and excellent physicochemical properties. The tensile strength and elongation at break of the multifilament in dry state were 2.58 cN/dtex and 12.1%, respectively. Moreover, the process could utilize most of the conventional equipment for the viscose method, which could have a great impact on the current cellulose industries.
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