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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cellulose acetate and short curaua fibers biocomposites prepared by large scale processing: Reinforcing and thermal insulating properties

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Gutierrez, Miguel Chavez [1] ; De Paoli, Marco-Aurelio [1] ; Felisberti, Maria Isabel [1]
Total Authors: 3
[1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: INDUSTRIAL CROPS AND PRODUCTS; v. 52, p. 363-372, JAN 2014.
Web of Science Citations: 12

Biocomposites from renewable resource and based on cellulose acetate, dioctyl phthalate and short curaua fibers were prepared by large scale extrusion and injection molding and their mechanical, morphological and thermal properties were studied as a function of plasticizer (dioctyl phthalate) and fiber contents, as well as chemical treatment of the fibers: treatment with NaOH solution or extraction with acetone. The chemical treatments of the fibers play an important role on the mechanical and thermal properties, increasing the Young's modulus (up to 50%), the thermal dimensional stability and the thermal conductivity (ca. 100%) and decreasing the impact strength (ca. 50%) of the composites in comparison with plasticized cellulose acetate. Plasticizer and fibers influence the properties of the biocomposites in the opposite way. Thus the properties of complete and functional formulations of biocomposites of cellulose acetate, plasticizer and curaua fibers with potential of applications and produced by a conventional polymer processing such as extrusion and injection molding can be tailored by controlling the amount and the characteristics of the additives. Among semi-empirical models used to describe the mechanical properties, the Cox-Krenchel and ROM mathematical model showed to be more suitable to describe the Young's modulus of the biocomposites. (C) 2013 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 10/17804-7 - Polymeric composites
Grantee:Maria Isabel Felisberti
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 10/02098-0 - Multicomponent polymeric materials
Grantee:Maria Isabel Felisberti
Support Opportunities: Regular Research Grants