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journal of materials research and technology 2022;20:4630 e 4658
The study by Osman et al. [187] also demonstrated that both bagasse and cotton stalks resulted in particleboards with relatively higher mechanical properties than particleboards made from straws and shells.
pine shavings particleboards, with more than 50% lower im- pacts in these categories. However, the study conducted by dos Santos et al. [188] is of laboratory scale and therefore unable to reflect the true scenario at an industrial scale. Following that, Silva et al. [189] analyzed the life cycle impacts of bagasse particleboards at an industrial scale. In the study, 50% sugarcane bagasse was used to substitute 50% wood particles in the production of UF- bonded particleboards. The authors compared the environ- mental performance of Brazilian conventional particleboards [190] and bagasse particleboards. Bagasse particleboards caused fewer impacts on abiotic depletion (ADPe) and eco- toxicity (ECP), mainly due to the reduction in the use of glyphosate in forest management activities. Other impact categories such as AP, ecotoxicity (ECP), EP, GWP, ozone layer depletion (ODP), photochemical oxidation (POCP), human toxicity d cancer effects (HTPC), and human tox- icity d noncancer effects (HTPNC) did not differ much between conventional and bagasse particleboards. Application of UF resin, electricity, and heavy fuel oil were the main reasons for this finding. Nevertheless, bagasse particleboards caused lower land-use impacts, indicating less land demand than wood particleboards. Therefore, bagasse particleboard is a good candidate to substitute conventional wood particleboard due to its better environmental performance. Finally, the au- thors suggested that 75% sugarcane bagasse can be added during particleboard manufacturing to produce panels with better environmental performance. Ramos et al. [191] compared the environmental perfor- mance and thermal behavior of corn cob particleboard,
7. Environmental performance of agricultural biomass and recycled wood particleboards
Life cycle assessment (LCA) is an important and powerful tool to assess the potential environmental impacts of a product system. However, LCA studies on agricultural biomass and recycled wood particleboards are relatively scarce. Some of the available studies are summarized in this section. In a study by dos Santos [188], laboratory-fabricated par- ticleboards were manufactured using sugarcane bagasse and pine wood shavings. Generally, bagasse particleboards had lower impacts in all categories than pine shavings particle- boards, except for the consumption of energy resources (CES), where bagasse particleboards consumed 9.9% more energy than pine shavings particleboards. Bagasse particleboards had 33.1% and 32.4% lower consumption of renewable resources (CRR) and consumption of non-renewable resources (CNR), respectively, compared to pine shavings particleboards. Slightly lower potential photochemical ozone creation (POC) and human toxicity potential (HTP) was produced by bagasse particleboards. In terms of global warming potential (GWP), acidification potential (AP), and eutrophication potential (EP), bagasse particleboards completely stand out in comparison to
Fig. 18 e Modulus of elasticity (MOE) e density chart for particleboard (651 e 1000kg/m 3 ) made with agricultural biomass and conventional wood.
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