Effects of the Addition of Sodium Alginate and the Concentration of Calcium Chloride on the Properties of Composite Nonwoven Fabrics
1 Institute of Biomedical Engineering and Materials Science, Central Taiwan University of Science and Technology, Taichung 40601 Taiwan, R.O.C.
2 Institute of Biotechnology, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan, R.O.C.
3 The Polymeric Biomaterials Lab, Department of Fiber and Composite Materials, Feng Chia University, Taichung city 40724, Taiwan, R.O.C.
4 Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan, R.O.C.
5 School of Chinese Medicine, China Medical University, Taichung 40724 Taiwan, R.O.C.
6 Department of Fashion Design, Asia University, Taichung 41354, Taiwan, R.O.C.
Nonwoven fabrics have merits, and for example, they can be simply and quickly processed with a variety of materials and an easily changeable manufacturing process. This study aims to examine the influences of the addition of sodium alginate (SA) and the concentration of calcium chloride (CaCl2) on the properties of the composite nonwoven fabrics. Chitosan (CS) micro-particles and SA solution are cross-linked with CaCl2 with various concentrations, combined with farir heat preservative staples (FT)/cotton (C) nonwoven fabrics, and then freeze-dried to form CS/SA/FT/C composite nonwoven fabrics. Afterwards, physical property tests are performed on the resulting composite nonwoven fabrics to determine their properties as related to various concentrations of CaCl2. The addition of SA decreases the water vapor permeability of FT/C nonwoven fabrics by 15 %, but the concentrations of CaCl2 do not influence the water vapor permeability. Compared to FT/C nonwoven fabrics, CS/SA/FT/C composite nonwoven fabrics have significantly lower water absorbency and water vapor permeability, but a greater stiffness.
© The Authors, published by EDP Sciences, 2016
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