Abstract
Abstract The society’s development provides consequences such as the increasing generation of industrial waste. In the city of Franca, Sao Paulo’s inland city, there are footwear industries that generate a large amount of leather waste during their production process. In most cases, there’s no use of this waste and they’re disposed of in landfills. A reuse alternative is the production of particleboards used in construction sectors. Therefore, one of the biggest challenges is the use of this leather waste adding value to the product and enabling the production of sustainable material. This work proposes the production of particleboards from Eucalyptus wood and leather fibers using castor oil polyurethane adhesive. In addition, the assessment of the leather fiber influence on modulus of rupture and elasticity obtained from a static bending test. The study investigated the proportion of 10%, 25% e 50% leather waste in relation to Eucalyptus particles and 10% castor oil polyurethane adhesive. The mechanical performance of the panels was evaluated based on ABNT NBR 14810-1 and 2 (2013; 2018). The results allowed us to ascertain that the incorporation of 10% leather waste in particleboard rated them, according to NBR 14810-1 and 2 (2013; 2018), as structural panels of type P4 for use in dry conditions.
Highlights
Particleboards are structures manufactured in different stages of wood disintegration or in wood veneers, which are bonded by means of specific resins
Treatments with 25% and 50% of leather fiber did not even meet the standards for non-structural panels
Treatments T2 and T3 did not meet the lower limit for structural uso, the treatment with 50% of leather fiber was classified for non-structural use, according to this test
Summary
Particleboards are structures manufactured in different stages of wood disintegration or in wood veneers, which are bonded by means of specific resins. The leather sector in the city of Franca SP generates on average 160 tons of waste per day, about 11.43% of national production[8] This waste may come from the processing of rawhide or leather remnants used in footwear industries All these waste materials are usually destined for landfills without any use. Several researches strive to use leather waste in production processes, with the most diverse purposes, with the aim to mitigating the damage caused to the environment with incorrect disposal, valorize the waste and the possibility Given this cenary, highlight the need to apply new byproducts for the manufacture of particleboards. The amount of water to be added should be calculated to reach a value in the range of 10 to 12%
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