Universidad Complutense de Madrid
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Characterisation of agricultural residues used as a source of fibres for fibre-cement production

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Jarabo, R y Monte Lara, M. Concepción y Blanco Suárez, Ángeles y Negro Álvarez, Carlos Manuel y Tijero Miquel, Julio (2012) Characterisation of agricultural residues used as a source of fibres for fibre-cement production. Industrial Crops and Products, 36 (1). pp. 14-21. ISSN 0926-6690 (Print) , 1872-633x (Online)

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URL Oficial: http://www.sciencedirect.com/science/article/pii/S0926669011003268



Resumen

Nowadays, certain components of non-wood annual plants such as corn stalk and industrial hemp core are considered waste materials or used in low value applications; both by-products have a very low cost. On the other hand, given the large quantities of these materials generated worldwide and their renewable character, it is reasonable to explore new routes for their exploitation. The aim of this paper is to study the potential of both corn stalk (Zea Mays L.) and industrial hemp core (Cannabis Sativa L.) fibres as a renewable source of cellulose fibres in the production of fibre-cement. For each source of fibres, a number of chemical cooking treatments were studied. The morphological properties of the fibres were determined using a scanning electron microscope and a fibre and pulp morphological analyser. Pulp refining was carried out in a PFI mill to improve the characteristics of the fibres. In the case of corn fibres, different degrees of refining were applied. The fibre flocculation process was investigated using several polyacrylamides. The process was studied by monitoring the chord size distribution in real time by means of a focused beam reflectance measurement probe.
The results indicated both pulps can be used for the production of fibre-cement, having the two types of pulp morphological similarities with the pine fibres currently used.
Through the flocculation process it was concluded the floc size depends on the length of the fibres.


Tipo de documento:Artículo
Palabras clave:Cannabis Sativa L.; Zea Mays L; natural fibres; fibre-cement; morphological characterisation
Materias:Ciencias > Química > Residuos
Código ID:34415
Depositado:04 Dic 2015 11:24
Última Modificación:07 Dic 2015 09:33

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