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Use of cellulose fibers from hemp core in fiber-cement production. Effect on flocculation, retention, drainage and product properties

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Jarabo, Rocío and Fuente González, Elena de la and Monte Lara, M. Concepción and Savastano, Holmer Jr and Mutjé, Pere and Negro Álvarez, Carlos Manuel (2012) Use of cellulose fibers from hemp core in fiber-cement production. Effect on flocculation, retention, drainage and product properties. Industrial Crops and Products, 39 . pp. 89-96. ISSN 0926-6690 (Print), 1872-633x (Online)

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Official URL: http://www.sciencedirect.com/science/article/pii/S0926669012000969



Abstract

The aim of this paper is to study the feasibility of using cellulose fibers obtained from an agricultural waste, hemp core (Cannabis Sativa L.), through different new environmental friendly cooking processes for fiber-cement production. The physical and mechanical properties of the fiber reinforced concrete, which depend on the nature and morphology of the fibers, matrix properties and the interactions between them, must be kept between the limits required for its application. Therefore, the morphology of the fibers and how its use affects the flocculation, retention and drainage processes in the fiber-cement manufacture, and the mechanical and physical properties of the fiber-cement product have been studied.
The use of pulp obtained by means of the hemp core cooking in ethanolamine at 60% concentration at 180 ºC during 90 minutes resulted in the highest solids retention and the best mechanical properties among the studied hemp core pulps.


Item Type:Article
Uncontrolled Keywords:Fiber-cement; Pulping conditions; Hemp core; Agricultural wastes; Flocculation
Subjects:Sciences > Chemistry > Materials
Sciences > Chemistry > Waste products
ID Code:34417
Deposited On:24 Nov 2015 15:26
Last Modified:24 Nov 2015 15:26

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