Panels Made From Giant Reed Bonded With Non-Modified Starches

Abstract

Panels were made from Arundo donax L. particles bonded with different non-modified starches as adhesive without chemical additives by hotpressing at a low temperature (110 ºC) and pressure (2.6 N/mm 2 ). The experimental panels were tested for their physical and mechanical properties according to the procedures defined by the European Union (EN) Standard. The microstructure of samples was observed by scanning electron microscopy (SEM). Panels manufactured with potato starch had the highest modulus of rupture and modulus of elasticity, meeting the standard for load bearing (grade P4 for indoor use in dry ambient) (EN 312: 2003). Panels made with corn starch and wheat flour, at a 10% level and three pressing cycles met the standard for general uses (grade P1). Panel bonded with rye bran flour achieved the best internal bond strentgh. The water resistance was poor and needs to be improved.

The Influence of Processing and Particle Size on Binderless Particleboards Made from Arundo donax L. Rhizome

“…Having performed the analysis of variance (Table 3), it can be observed that the density depends on the particle size and the pressing cycle but does not depend on the pressing time, obtaining higher values with a smaller particle size and a second pressing cycle; particle size is the manufacturing variable that has the most impact. This result is in line with that obtained in other studies with binderless boards [32], which state that density depends on the particle shape and size; to reduce the density, it is necessary to take particle size and shape into account.…”

“…In this regard, studies have been carried out on particleboards in which synthetic resins are replaced with natural resins and adhesives, such as protein, lignin, tannin, gluten, starch, citric acid, etc. [27][28][29][30][31][32][33].…”

“…Tests carried out with binderless giant reed boards showed that very poor physical and mechanical properties were obtained [32], but as the giant reed rhizome has a large amount of fermentable sugars [26], it can be surmised that this material could be used to produce binderless boards with good properties.…”

Starch: An Undisputed Potential Candidate and Sustainable Resource for the Development of Wood Adhesive

“…Corn starch has been explored by adopting starch/isocyanates, starch/tannin, and starch/polyvinyl alcohol systems for the development of adhesives . The properties of adhesive vary greatly depending on the derived sources …”

Desarrollo de bioproductos de Arundo donax L. orientados al secuestro de carbono y reducción de la pérdida de biodiversidad

“…Garcia-Ortuño et al [8] fabricaron tableros de partículas de caña consiguiendo tableros estructurales comparables a los paneles de madera. Ferrández-García et al [9] fabricaron paneles ecológicos de partículas de caña usando fécula de patata como aglutinante. Asimismo, se ha propuesto el uso de partículas de caña para la fabricación de cajas para frutas y verduras [10,11].…”