Mercerization effect on the properties of LDPE/PHB composites reinforced with castor cake Article Swipe

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Marisa Cristina Guimarães Rocha , Nancy Isabel Alvarez Acevedo , Carlos Ivan Ribeiro de Oliveira , Maira Cunha Sanches , Natália Nogueira Coelho ·

YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.6084/m9.figshare.14282967

The aim of this work was to investigate the effects of mercerization on the structure of castor oil cake (CC) and on the tensile properties of LDPE/PHB/CC composites. To achieve this goal, the fibers were treated with NaOH solutions (5 and 10 wt%). Characterization techniques such as: scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) were used to investigate the structure of modified fibers. The composites were processed in a Haake mixer. Tensile tests of the composites were performed according to ASTM D638 standard. The analyzes revealed that mercerization promoted a partial conversion of cellulose I into cellulose II. Mercerization performed with 5% NaOH solution improved the tensile properties of the LDPE/PHB/CC composites, which were superior to those obtained with the 10% NaOH solution. This result suggests that the higher concentration of NaOH compromises the integrity of the fibers, deteriorating the mechanical properties.

Related Topics

Composite Material

Materials Science

Polyethylene

Concepts

Low-density polyethylene Composite material Materials science Polyethylene

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Type: dataset
Language: en
Landing Page: https://doi.org/10.6084/m9.figshare.14282967
OA Status: gold
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DOI: https://doi.org/10.6084/m9.figshare.14282967

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Title: Mercerization effect on the properties of LDPE/PHB composites reinforced with castor cake

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Language: en

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Publication year: 2021

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Publication date: 2021-01-01

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Authors: Marisa Cristina Guimarães Rocha, Nancy Isabel Alvarez Acevedo, Carlos Ivan Ribeiro de Oliveira, Maira Cunha Sanches, Natália Nogueira Coelho

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Landing page: https://doi.org/10.6084/m9.figshare.14282967

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Open access: Yes

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OA status: gold

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OA URL: https://doi.org/10.6084/m9.figshare.14282967

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Concepts: Low-density polyethylene, Composite material, Materials science, Polyethylene

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