Results 141 to 150 of about 617 (165)
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Dioxane lignins of kenaf bast and tow
Chemistry of Natural Compounds, 19791. Dioxane lignins have been isolated from the outer (bast) and inner (tow) parts of kenaf of the variety Uzbekskii 15–74, and the semiempirical formulas of the phenylpropane structural units of these dioxanes have been calculated on the basis of elementary and functional analyses.
G. N. Dalimova +3 more
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Kenaf bast cellulosic fibers hierarchy: A comprehensive approach from micro to nano
Carbohydrate Polymers, 2014Cellulosic fibers from kenaf bast were isolated in three distinct stages. Initially raw kenaf bast fibers were subjected to an alkali pulping process. Then pulped fibers undergone a bleaching process and finally both pulped and bleached fibers were separated into their constituent nanoscale cellulosic fibers by mechanical shearing.
Alain Dufresne +2 more
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Multi stage peroxide and activated peroxide bleaching of kenaf bast pulp
Carbohydrate Polymers, 2013Soda-anthraquinone kenaf bast pulp (12.5 kappa number and 32% ISO brightness) has been bleached with multi stage peroxide bleaching process. Bleaching process was carried out in different sequences of peroxide stage without and with activator (tetraacetylethylenediamine, TAED) to about 80% ISO brightness.
Farhad, Zeinaly +2 more
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Viscoelastic Properties of Kenaf Bast Fiber in Relation to Stem Age
Textile Research Journal, 2009Natural fibers traditionally used for cordage are proving valuable for advanced industrial applications due in part to beneficial physical and chemical properties, but also because they are a renewable and biodegradable resource. Kenaf ( Hibiscus cannabinus L., Malvaceae) produces high yields of lignocellulosic bast fibers in the bark layer, and is a ...
Brian G. Ayre +5 more
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Varieties of Kenaf (Hibiscus cannabinus), a Bast Fiber Plant, in Cuba
Botanical Gazette, 19451. The species of Hibiscus being grown in Cuba for the production of soft fiber has been correctly identified as kenaf (H. cannabinus) rather than as roselle (H. sabdariffa). Differences in color of withered flower petals and seed characters, as well as unlikeness in various floral parts and in the appearance of stems, are suggested means of ...
Julian C. Crane, Julian B. Acuna
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Weibull distribution analysis of the tensile strength of the kenaf bast fiber
Fibers and Polymers, 2016This paper presents the influence of the gage length on the kenaf fiber Young’s modulus and the tensile strength characterization. Four different gage lengths of 10 mm, 15 mm, 20 mm and 25.4 mm are selected in this study and the tensile testing is performed at a quasi-static loading rate of 1 mm/min.
Dayakar L. Naik, Thomas H. Fronk
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Preparation of Kenaf Bast Fibre Dispersions for Use in Latex Products
Journal of Rubber Research, 2018The use of kenaf has been extensively explored since its introduction in 1999 by the Malaysian government. However, its lacking application in rubber latex motivates the present study on preparation of kenaf bast fibre dispersions for the latex based industry.
Manroshan Singh +2 more
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Physicochemical characterization of different treatment sequences on kenaf bast fiber
Carbohydrate Polymers, 2006Abstract Three different processing sequences for pulping kenaf (Hibiscus cannabinus L.) bast fibers were investigated, and the chemical composition (cellulose, hemicellulose and lignin content) and physical properties (viscosity, degree of polymerization and crystallinity index) of the extracted pulp were determined.
Sherif Keshk +2 more
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Materials Science Forum, 2015
Kenaf bast fiber reinforced unsaturated polyester composite was produced using kenaf bast fiber based on different retting process. There are two different retting method involved which are water and mechanical retting process. The composites were prepared by using hand lay-up method with different fiber loading (weight %) of 10, 15 and 20%.
Abdul Rahman Rozyanty +3 more
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Kenaf bast fiber reinforced unsaturated polyester composite was produced using kenaf bast fiber based on different retting process. There are two different retting method involved which are water and mechanical retting process. The composites were prepared by using hand lay-up method with different fiber loading (weight %) of 10, 15 and 20%.
Abdul Rahman Rozyanty +3 more
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Effect of partial delignification of kenaf bast fibers for radiation graft copolymerization
Journal of Applied Polymer Science, 2012AbstractMalaysian kenaf bast fiber was treated by acidic chlorite to be applied for a trunk polymer radiation‐induced graft copolymerization. The delignification conditions such as temperature, reaction time, and sodium chlorite (NaClO2) loading were optimized from the viewpoints of density, tensile strength, and reactivity of grafting.
Nor Hasimah Mohamed +3 more
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