Novel lignocellulosic hybrid particleboard composites made from rice straws and coir fibers

Comparison between two different pretreatment technologies of rice straw fibers prior to fiberboard manufacturing: Twin-screw extrusion and digestion plus defibration

“…Several researchers have investigated the use of rice straw and other agricultural wastes as fiber source in the composite industry (El-Kassas and Mourad, 2013;Evon et al, 2012;Halvarsson et al, 2008;Li et al, 2010;Pan et al, 2010;Theng et al, 2015a;Wu et al, 2011;Zhang and Hu, 2014;Zhao et al, 2011), in particular to produce fiberboards by thermopressing, the latter being usable for furniture or in the building industry. Different methods for fiber pretreatment were tested, i.e.…”

Construction particleboards made from rapeseed straw glued with hybrid pMDI/PF resin

“…The review of literature on the subject shows that numerous investigations into the substitution of wood chips with particles of annual plants have been carried out so far. Owing to the crop size, researchers focus mainly on the use of wheat straw (Grigoriou 2000;Boquillon et al 2004;Azizi et al 2011;Bekhta et al 2013), rice straw (Li et al 2010;Zhang and Hu 2014), flax and hemp (Papadopoulos and Hague 2003), kenaf, bamboo (Papadopoulos et al 2004;Xu et al 2004), corn, sunflower, various grass species, sugar cane, but also on herbaceous plants, such as evening primrose (Hein et al 2011;Dukarska et al 2012;Park et al 2012;Cosereanu et al 2015;Guler et al 2016). Wood particles can also be substituted by tomato stalks and grapevine, kiwi, coffee or tea waste (Nemli et al 2003;Guuntekin et al 2009;Bekalo and Reinhardt 2010), which is an interesting option too.…”

Flax Shive and Hemp Hurd Residues as Alternative Raw Material for Particleboard Production

“…The interfacial interaction is important because the waste residues may have high strength and stiffness properties, but if the bonding between them is poor, then the inherent strength of the residue has no impact and the resulting composite exhibits poor mechanical properties (Zhang et al 2005;Ndazi et al 2006). Polymeric diphenyl methane diisocyanate (pMDI) resin has been shown to successfully bond with agricultural crops and plant residues, such as miscanthus, wheat straw, corn pith, and rice straw, to produce panels that meet the required standards for specific applications (Tröger et al 1998;Wang and Sun 2002;Mo et al 2003;Halvarsson et al 2010;Zhang and Hu 2014). Isocyanate resin cures rapidly and can be used in lower quantities (usually 3% to 6% mass resin loads) in comparison with UF and PF resins (6% to 14% mass resin load) (Frihart 2013).…”