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Novel nanocellulosic xylan composite film

2009; Elsevier BV; Volume: 40; Issue: 8 Linguagem: Inglês

10.1016/j.compositesb.2009.05.003

1879-1069

Amit Saxena, Thomas Elder, Shaobo Pan, Arthur J. Ragauskas,

biodegradable polymer synthesis and properties

Nanocellulosic-xylan films were prepared employing oat spelt xylan, cellulose whiskers and a plasticizer. The mechanical properties of the films were evaluated using tensile testing under controlled temperature and humidity conditions. The tensile data showed that the addition of sulfonated cellulose whiskers lead to a substantial improvement in strength properties. Addition of 7 wt% of sulfonated whiskers increased the tensile energy absorption of xylan films by 445% and the tensile strength of the film by 141%. Furthermore, films to which 7% cellulose whiskers were added showed that nanocellulose whiskers produced with sulfuric acid (sulfonated whiskers) were significantly better at increasing film strength than cellulose whiskers produced by hydrochloric acid hydrolysis of cellulosic fibers.