Characterization of Cellulose Microfibrils Obtained from Hemp | Zendy

Anna Šutka | Zendy; Silvija Kukle | Zendy; Jānis Grāvītis | Zendy; Laima Grāve | Zendy

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Characterization of Cellulose Microfibrils Obtained from Hemp

Author(s) -

Anna Šutka,

Silvija Kukle,

Jānis Grāvītis,

Laima Grāve

Publication year - 2013

Publication title -

conference papers in materials science

Language(s) - English

Resource type - Journals

eISSN - 2314-5846

pISSN - 2090-9713

DOI - 10.1155/2013/171867

Subject(s) - cellulose , agglomerate , fourier transform infrared spectroscopy , materials science , scanning electron microscope , microstructure , composite material , fibril , cellulose fiber , chemical engineering , fiber , chemistry , biochemistry , engineering

Microfibrillated cellulose was extracted from hemp fibres using steam explosion pretreatment and high-intensity ultrasonic treatment (HIUS). The acquired results after steam explosion treatment and water and alkali treatments are discussed and interpreted by Fourier transform infrared spectroscopy (FTIR). Scanning electron microscopy (SEM) was used to examine the microstructure of hemp fibres before and after each treatment. A fibre size analyser was used to analyse the dimensions of the untreated and treated cellulose fibrils. SEM observations show that the sizes of the different treated fibrils have a diameter range of several micrometres, but after HIUS treatment fibres are separate from microfibrils, nanofibres, and their agglomerates.

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