Steam Explosion Impact to Technical Hemp Fiber Diameter

Authors

  • Laima Grāve Riga Technical university
  • Anna Putniņa Riga Technical university
  • Silvija Kukle Riga Technical university
  • Veneranda Stramkale Agriculture Science Centre of Latgale

DOI:

https://doi.org/10.17770/etr2013vol1.805

Keywords:

natural fiber, fiber diameter, steam explosion, alkaline pretreatment

Abstract

Microfibers and nanofibers from natural products have high mechanical properties. For this reason researchers pay particular attention to the natural fibers and to the method how they are obtained. In the research samples with different treatments (alkaline pretreatment, steam explosion and water extraction) were investigated to evaluate treatment influence on fiber diameters. Fractionation does not provide actual results of fibers diameter as thinner fibers agglomerate to each other and around thicker fibers and cannot be sieved. Fiber diameter measurement with an optical microscope shows that pretreatment and treatment reduced the thickest fiber percentage and increase the number of fine particles. Dew-retted hemp gives 16% of thicker fibers and only 39% fibers with a diameters less than 63µm. 50% of alkaline pretreated and steam explosion treated fibers diameters are less than 63 µm and only 8% of diameters fall in range 160 - 630 µm.

Downloads

Download data is not yet available.

Author Biographies

  • Laima Grāve, Riga Technical university
    Department of Design and Textile Products Technology
  • Anna Putniņa, Riga Technical university
    Department of Design and Textile Products Technology
  • Silvija Kukle, Riga Technical university
    Department of Design and Textile Products Technology

References

Siqun Wang, Qingzheng Cheng, T. G. Rials and Seung-Hwan Lee, Cellulose Microfibril/Nanofibril and Its Nanocompsites, Proceedings of the 8th Pacific Rim Bio-Based Composites Symposium, 301-308.

M. Fan Elementary hemp fibres and strength. BioResources 5 (4), 2010., 2307-2322

Berglund, L.,. Cellulose-Based Nanocomposites. In: A.K.M. Mohanty, M.; Drzal, L. (Editor), Natural fibers, biopolymers, and biocomposites. Taylor & Francis, pp., 2005., 807-832.

Jayamol G.1, Sreekala M. S., Sabu T. A Review on Interface Modification and Characterization of Natural Fiber Reinforced Plastic Composites, Polymer Engineering and science, Vol. 41, No. 9, 2001. 1471-1485.

V. Stramkale, I. Nagle, V. Zepa, I.Kroiča Linu un kaņepju selekcijas materiāla novērtēšana integrēto lauksaimniecības kultūraugu audzēšanas tehnoloģiju ieviešanai, Latgales Lauksaimniecības Zinātnes centrs, 2012., 24

Kukle S., Stramkale V., Kalniņa D., Soliženko R. Comparision of HEMP Fibres Properties //6th International Textile Clothing and Design Conference "Magic World of Textiles" (ITC&DC): Book of Proceedings, 2012. – pp. 76-80. ISSN 1847-7275

M.Kostic, B. Pejic, P.Skundric Quality of chemically modified hemp fibers. M. Kostic et al. / Bioresource Technology 99 (2008) 94–99

Kukle S., Gravitis J., Putnina A. Processing Parameters Influence on Disintegration Intensity of Technical Hemp Fibres. Journal of Biobased Materials and Bioenergy, 2012, Vol.6, No.4, p 440-448.

Kallavus U., Gravitis J. A Comparative Investigation of the Ultrastructure of Steam Exploded Wood With Light, Scanning and Transmission Electron Microscopy. Holzforchung, 49 (2), 1995., 182-188.

Leonard Y. Mwaikambo, Martin P.Ansell Chemical Modification of Hemp, Sisal, Jute, and Kapok Fibers by Alkalization Journal of Applied Polymer Science, Vol. 84, 2002., 2222–2234.

Downloads

Published

2015-08-06

How to Cite

[1]
L. Grāve, A. Putniņa, S. Kukle, and V. Stramkale, “Steam Explosion Impact to Technical Hemp Fiber Diameter”, ETR, vol. 1, pp. 112–115, Aug. 2015, doi: 10.17770/etr2013vol1.805.