Creep Behavior of Lignocelluiosic-Fiber/Polypropylene Matrix Composites

J.R.M. dAlmeida; A.L.L. da Silva

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Creep Behavior of Lignocelluiosic-Fiber/Polypropylene Matrix Composites

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Lignoceliulosic residues obtained after the sustainable harvesting of heart of palm from pejibaye (Bactris gasipaes) palms were managed to produce chopped fibers. These fibers can be used to manufacture agglomerated panels and also as reinforcement in polymer-matrix composites. Polypropylene (PP) is a convenient polymer to be loaded with these residues due to its large applications, including under-the-bonnet applications by the automotive industry. PP-pejibaye composites with 10wt of fiber mass fraction were manufactured and their creep behavior was studied. The experimental results were suitably described analyzing the variation of the creep modulus fitting the experimental data points to the three-element model where the Kelvin-Voigt element is attached to an independent spring. The results obtained show that the incorporation of the chopped pejibaye fibers to not affect the creep performance of the composite. This behavior is very promising, since untreated fibers were used, meaning that the use of expensive and many times environmentally detrimental fiber surface chemical treatments can be avoided.

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来源
《Materials Science Forum》 |2013年第1期|295-300|共6页
作者
J.R.M. dAlmeida; A.L.L. da Silva;
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作者单位

Materials Engineering Department, Pontiffcia Universidade Catolica do Rio de Janeiro, Rio de Janeiro - RJ, Brazil;

Mechanicai Engineering Department Universidade do Estado do Rio de Janeiro, Rio de Janeiro -RJ, Brazil;

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原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Lignoceliulosic fibers; composites; creep; viscoelastic models; PP;

Creep Behavior of Lignocelluiosic-Fiber/Polypropylene Matrix Composites

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