نتایج جستجو برای: natural fibers

تعداد نتایج: 548930  

A. Haji

Nowadays, there is a great tendency for eco-dyeing and finishing of textiles with natural products. several natural dyes have been used for dyeing of protein fibers but a low number have the ability to dye cotton fiber because of low affinity of cellulose to the natural dyes. In this study madder and weld natural colorants were used to dye cotton fabric premordanted with three metallic salt...

Journal: :Journal of the Society of Materials Science, Japan 2004

2013
Srinivasa Rao

Work has been carried out to investigate the flexural properties of composites made by reinforcing banana and pineapple as the new natural fibers into epoxy resin matrix. The natural fibers were extracted by retting and manual process. The composites are fabricated using banana and pineapple fiber reinforcements. Hybrid composites were prepared using banana/pineapple fibers of 0/40, 15/25, 20/2...

2014
Matheus Poletto Heitor L. Ornaghi Júnior Ademir J. Zattera

In this work, the relationship between cellulose crystallinity, the influence of extractive content on lignocellulosic fiber degradation, the correlation between chemical composition and the physical properties of ten types of natural fibers were investigated by FTIR spectroscopy, X-ray diffraction and thermogravimetry techniques. The results showed that higher extractive contents associated wi...

A. A. Enayati M. Layeghi M. Mehdinia

The use of agriculture residues as filler in composites is increasing due to their strength, abundance and low cost. Soya stalks show promising renewable natural fiber. In polyethylene composites the physical and mechanical properties (flexural resistance, tensile, impacted absorbed energy, water uptake and thickness swelling) was examined at different composites. The results showed that, the m...

2004
S. V. Joshi L. T. Drzal A. K. Mohanty S. Arora

Natural fibers are emerging as low cost, lightweight and apparently environmentally superior alternatives to glass fibers in composites. We review select comparative life cycle assessment studies of natural fiber and glass fiber composites, and identify key drivers of their relative environmental performance. Natural fiber composites are likely to be environmentally superior to glass fiber comp...

2014
M. Narendra K. L. N. Murthy

The natural fiber reinforced composites have the advantage of being light weight, renewable, bio-degradable, cheap and eco-friendly. So there is every need to investigate potentiality of natural fibers and its composites, which can be used in highly demanding situations. However, very small contribution of research work exists in the design and fabrication of composite materials using natural f...

2014
J. Zach J. Hroudova J. Brozovsky

Abstract—Thermal insulation materials based on natural fibers represent a very promising area of materials based on natural easy renewable row sources. These materials may be in terms of the properties of most competing synthetic insulations, but show somewhat higher moisture sensitivity and thermal insulation properties are strongly influenced by the density and orientation of fibers. The pape...

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