9 research outputs found
Nanocrystalline cellulose isolated from different renewable sources to fabricate natural rubber composites with outstanding mechanical properties
No full textConstructing ethanol-derived bioactive extracts using the brown seaweed Zonaria tournefortii (J.V.Lamouroux) Montagne performed with Timatic extractor by means of response surface methodology (RSM)
No full textPreparation of nanocellulose by hydrolysis catalysedusing salts with different Fe valency
No full textPhysicochemical Properties and Thermal Stability of Microcrystalline Cellulose Isolated from Esparto Grass Using Different Delignification Approaches
No full textInfluence of cellulose chemical pretreatment on energy consumption and viscosity of produced cellulose nanofibers (CNF) and mechanical properties of nanopaper
No full textEffect of the Delignification Process on the Physicochemical Properties and Thermal Stability of Microcrystalline Cellulose Extracted from Date Palm Fronds
No full textAvailability and suitability of agroindustrial residues as feedstock for cellulose-based materials: Brazil case study
No full textBio-based polymers have emerged as a feasible alternative to petrochemical polymers mainly due to their biodegradability and renewable feedstock. Brazil is considered one of the largest producers of agricultural commodities. Hence, the country is also distinguished by the large generation of this residue type, which can be potentially used as a source to obtain biopolymers, such as cellulose. Based on the Brazil agriculture market, the study aims to analyze the suitability of agroindustrial residues as raw material for cellulose-based materials. A methodology for the selection of the most suitable residues is proposed, which takes into account the chemical composition of residues, namely the cellulose content and the cellulose-to-lignin ratio, as well as, their availability. In order to meet conservation issues, the availability of residues is calculated as a function of sustainable removal rates and competitive uses. Taking as reference the main crops identified, the average amount of agroindustrial residues available in Brazil was estimated at 108 million tons/year. Among the most suitable residues to be used as cellulose feedstock are soybean straw, sugarcane top/leaves, maize husk and stover and sugarcane bagasse.This work was supported by the Brazilian National Council for Scientific and Technological Development (Grant Number 201940/2015-9)
