Enhancement of the Photodegradative Potential of Polymer Composites Containing Babassu Fiber

Vegetable fibers are widely used as reinforcement in the production of composites. In this work, the photodegradative potential of polymer composites containing babassu fiber was characterized and evaluated. The fibers were extracted manually and immersed in a 10% NaOH solution (Mercerization). Afte...

Full description

Saved in:

Bibliographic Details
Published in:	Materials research (São Carlos, São Paulo, Brazil) Vol. 23; no. 2; p. 1
Main Authors:	Furtado, Josélia Borges de Moura, Furtado Filho, Paulo Afonso, Oliveira, Thalyta Pereira, Caetano, Marlo Rodrigues de Sousa, Araujo, Inês Maria de Souza, Figueiredo, Francisco Cardoso, Santos Júnior, José Ribeiro dos
Format:	Journal Article
Language:	English
Published:	Sao Carlos Universidade Federal do Sao Carlos, Departamento de Engenharia de Materiais 01-01-2020 ABM, ABC, ABPol Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
Subjects:	Biodegradability Biodegradable materials Composites ENGINEERING, CHEMICAL Infrared analysis Low density polyethylenes MATERIALS SCIENCE, MULTIDISCIPLINARY Mechanical tests Mercerization METALLURGY & METALLURGICAL ENGINEERING Modulus of elasticity natural and artificial degradation Photodegradation Polymer matrix composites Solar radiation Thermogravimetric analysis Vegetable fibers mercerization natural and artificial degradation Composites
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Vegetable fibers are widely used as reinforcement in the production of composites. In this work, the photodegradative potential of polymer composites containing babassu fiber was characterized and evaluated. The fibers were extracted manually and immersed in a 10% NaOH solution (Mercerization). After drying, they were crushed and incorporated into the low-density polyethylene matrix in proportions of 5%, 10%, and 20% of the total mass of the composite. The composites were subjected to Scanning Electron Microscopy analysis (showed the incorporation of fibers into the polymeric matrix), Infrared Spectroscopy (the presence of fiber was observed with peaks at 3200-3600 cm-1, and 1596 cm-1-1036 cm-1), Mechanical Tests (with 20% fiber, there is a 44% decrease in tension, 48% in strain and 12% in Young's modulus) and Thermogravimetric Analysis (inicial fiber degradation starts between 220-337 °C, and matrix degradation between 333-550 °C). The composites were subjected to degradation processes by solar radiation and under artificial UV-B. Samples of oxy-biodegradable plastic bags were also degraded under the same degradation conditions of the composites. These results show that the materials used in the research, besides presenting an excellent degree of compatibilization, also reveal an improvement in the photodegradation potential of composites.
ISSN:	1516-1439 1980-5373 1980-5373
DOI:	10.1590/1980-5373-mr-2019-0438