Comparison of Various Chemical Treatments Efficiency in Relation to the Properties of Flax, Hemp Fibers and Cotton trichomes

ABSTRACT

The main aim of this study was to chemically modify the plant fiber surface. Hemp, flax fibers and cotton trichomes were subject of surface treatments using silanization, acetylation, benzoylation, and mercerization processes. The fiber properties were evaluated with the use of fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), wide-angle X-ray analysis (WAXS) and thermogravimetric analysis (TGA). Additionally, humidity and color of the modified fibers were evaluated. Chemical treatment of the plant fibers reduced their hydrophilic nature, increased the moisture resistance, and improved their thermal stability. In all the cases the silanization process proved to be the most effective method of improving fiber thermal stability and moisture resistance, yet mercerization and benzoylation methods offered satisfying results as well.

摘要

本研究的主要目的是对植物纤维表面进行化学改性.大麻、亚麻纤维和棉原体采用硅烷化、乙酰化、苯甲酰化和丝光工艺进行表面处理.利用傅立叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、广角X射线分析（WAXS）和热重分析（TGA）对纤维性能进行了评价.此外，还对改性纤维的湿度和颜色进行了评价.植物纤维经过化学处理后，亲水性降低，抗湿性提高，热稳定性提高.在所有情况下，硅烷化工艺被证明是提高纤维热稳定性和抗湿性的最有效方法，然而丝光和苯甲酰化方法也提供了令人满意的结果.

KEYWORDS:

• Plant fibre
• chemical treatments
• flax
• hemp
• cotton

关键词:

• 植物纤维
• 化学处理
• 亚麻
• 大麻纤维
• 棉

Additional information

Funding

This work was supported by the National Centre for Research and Development of Poland under project LIDER/25/0148/L-8/16/NCBR/2017 “Development of hybrid biodegradable composites’ manufacturing technology for the automotive industry”.

Notes on contributors

D. Matykiewicz

D. Matykiewicz graduated from University of Sciences and Technology in Bydgoszcz, Faculty of Chemical Technology and Engineering with specialization: Chemical Technology/Industrial Biotechnology in 2010, and obtained Ph.D. Eng. in 2015 in the field of Material Engineering in Poznan University of Technology, Faculty of Mechanical Engineering and Management. Since 2013 she works as a researcher in the Polymer Processing Division, Institute of Materials Technology at the Poznan University of Technology. She is the author and co-author of over 30 peer-reviewed articles. Her research interests are polymeric composites with fibrous and powder filler, hybrid composites and thermal analysis.

M. Barczewski

M. Barczewski graduated from Poznan University of Technology, Faculty of Mechanical Engineering and Management with specialization: Mechanical Engineering/Materials Processing in 2009, and obtained Ph.D. Eng. in 2015 in the field of Machine Design and Maintenance in Poznan University of Technology, Faculty of Mechanical Engineering and Management. Since 2011 he works as a researcher in the Polymer Processing Division, Institute of Materials Technology at the Poznan University of Technology. He is the author and co-author of over 50 peer-reviewed articles. His research interests are polymeric composites, waste management and rheological measurements.

O. Mysiukiewicz

O. Mysiukiewicz graduated from Poznan University of Technology, Faculty of Mechanical Engineering and Management, with specialization: mechanical engineering/materials processing in 2016. Since 2016 she has been a doctoral student at the Polymer Processing Division, Institute of Materials Technology, Poznan University of Technology. She is the author and co-author of 9 peer-reviewed articles. Her research interests are polymeric composites with fibrous and powder fillers and eco-friendly materials.

K. Skórczewska

K. Skórczewska graduated from the University of Science and Technology in Bydgoszcz, Faculty of Chemical Technology and Engineering with specialization: Chemical Technology/ Environmental Protection Technology in 2007, and she obtained Ph.D. Eng. in 2016 in the field of Material Engineering at Poznan University of Technology, Faculty of Mechanical Engineering and Management. Since 2007 she works as a researcher in the Department of Polymer Technology and Protective Coatings, Faculty of Chemical Technology and Engineering at the UTP University of Science and Technology. She is the co-author of over 20 peer-reviewed articles 8 patent applications and 4 patents. Her research interests are the modification of polymer materials, polymer composites and nanocomposites, polymer recycling.