A new eco-friendly mechanical technique for production of rice straw fibers for medium density fiberboards manufacturing

Rice straw is the most abundant lignocellulosic waste material that may be exploited to produce natural fibers used in manufacturing of medium density fiberboards. However, it contains high amount of wax that impairs the absorptivity of the produced fibers to liquid adhesives. Moreover, the high lev...

Full description

Saved in:
Bibliographic Details
Published in:International journal of environmental science and technology (Tehran) 2021-04, Vol.18 (4), p.979-988
Main Authors: El-Kassas, A. M., Elsheikh, A. H.
Format: Article
Language:English
Subjects:
Aquatic Pollution
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Science and Engineering
Original Paper
Soil Science & Conservation
Waste Water Technology
Water Management
Water Pollution Control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Rice straw is the most abundant lignocellulosic waste material that may be exploited to produce natural fibers used in manufacturing of medium density fiberboards. However, it contains high amount of wax that impairs the absorptivity of the produced fibers to liquid adhesives. Moreover, the high level of silica and ash contents may cause a severe damage to the conventional disk refiners that used to produce fibers. Therefore, costly chemical pretreatments are essential to produce rice straw fibers which prohibit commercial production of rice straw medium density fiberboard. This paper presents a novel eco-friendly mechanical technique for production of rice straw fibers. A full-scale manufacturing system was designed and established to produce rice straw fibers as an alternative raw material for manufacturing of medium density fiberboards. The proposed technique, in contrary to conventional techniques, eliminates the use of harmful chemicals and minimizes power consumption. Moreover, better fibers with minimum silica content and enhanced water absorptivity properties were obtained. Full material characterization of the produced fibers was carried out using scanning electron microscope and energy-dispersive X-ray spectroscopy. The mechanical and physical properties of the produced fiberboards were tested and were proved to meet the standard requirements of EN 622, EN 317, and EN 310.
ISSN:1735-1472
1735-2630
DOI:10.1007/s13762-020-02886-8