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Preparation and Characterization of Tannin-based Adhesives Reinforced with Cellulose Nanofibrils for Wood Bonding by Uasmim Lira Zidanes; Matheus Cordazzo Dias; Mário Sérgio Lorenço; Elesandra da Silva Araujo; Maryella Júnnia Ferreira e Silva; Thaís Brito Sousa; Saulo Rocha Ferreira; Júlio César Ugucioni; Gustavo Henrique Denzin Tonoli; Maria Lucia Bianchi; Fábio Akira Mori is a Engineering article available to read on EtoBox.
What is Preparation and Characterization of Tannin-based Adhesives Reinforced with Cellulose Nanofibrils for Wood Bonding about?
## Abstract Adhesives based on vegetable tannins are already a reality in the market. However, their use is still limited due to their low mechanical resistance and weak humidity resistance. Cellulose nanofibrils (CNFs) are being used as reinforcing materials in various composites, resulting in an improvement of mechanical proprieties in general. The objective of this work was to evaluate the incorporation of CNFs in adhesives made of tannins obtained from the Angico tree (Anadenanthera peregrine). Concentrations of nanofibrils at 1, 5, and 10% were added to the adhesives on a dry basis. Tests of viscosity, pH, solids content, and gel time were performed to determine the physical proprieties of the adhesives. The Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Raman spectra measurements were also determined to understand the interaction between tannins and CNFs. Thermogravimetric analyses (TGA) were carried out to determine the thermal resistance of the composite. The FTIR and Raman characterization identified some differences in the peaks in the chemical composition of the adhesives with different percentages of CNFs. The adhesives showed no dif
Who reads Preparation and Characterization of Tannin-based Adhesives Reinforced with Cellulose Nanofibrils for Wood Bonding?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Uasmim Lira Zidanes; Matheus Cordazzo Dias; Mário Sérgio Lorenço; Elesandra da Silva Araujo; Maryella Júnnia Ferreira e Silva; Thaís Brito Sousa; Saulo Rocha Ferreira; Júlio César Ugucioni; Gustavo Henrique Denzin Tonoli; Maria Lucia Bianchi; Fábio Akira Mori
- Publisher
- Walter de Gruyter GmbH
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)