Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/0104-1428.04819
Polímeros: Ciência e Tecnologia
Original Article

Mechanical characterization of HDPE reinforced with cellulose from rice husk biomass

Bosenbecker, Mariane Weirich; Cholant, Gabriel Monteiro; Silva, Gabriela Escobar Hochmuller da; Paniz, Oscar Giordani; Carreño, Neftali Lenin Villarreal; Marini, Juliano; Oliveira, Amanda Dantas de

http://dx.doi.org/10.1590/0104-1428.04819 Polímeros: Ciência e Tecnologia, vol.29, n4, e2019058, 2019
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Abstract

High-density polyethylene (HDPE) reinforced with cellulose from rice husk (RH) were prepared and studied. The RH biomass was submitted to acid extraction and bleaching process and then analyzed for its cellulose extraction efficiency by X-ray diffraction (XRD) and Fourier transformation infrared spectroscopy (FTIR). After that, the RH cellulose (RHC) was incorpored to the HDPE matrix by melt blending with different filler contents (5, 10 and 15 wt%), and then characterized in terms of mechanical properties and morphology. The RHC incorporation in the HDPE matrix resulted in an increase in elastic modulus regardless the filler content added; also, the impact resistance was maintained for RHC contents up to 10%. The morphological analysis of the composites showed that the cellulose was well dispersed in the matrix, which contributed to the improvement of the final rigidity of these materials, indicating the feasibility of incorporating this residue in the production of HDPE composites.

Keywords

cellulose, biomass, polymeric composites, rice husk.

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