Characterization of Green Coconut Fiber Composites

Abstract

Resumo: Compósitos de polipropileno com 10, 20 e 30% em volume de fibra de coco verde foram obtidos em câmara de mistura Haake, tendo como variáveis a temperatura de processamento e a velocidade de cisalhamento. O módulo de flexão e as características morfológicas dos diferentes compósitos obtidos foram avaliados e comparados com o polipropileno puro. Foi observado que a temperatura de 170 °C, a velocidade do rotor de 60rpm e o teor de fibra de coco verde de 30% forneceram o melhor desempenho quanto à flexão. Essas observações foram comprovadas pela análise da morfologia. Palavras-chave: Compósitos, polipropileno, fibra de coco verde. Abstract: Polypropylene composites containing 10, 20 and 30% in volume of green coconut fiber were prepared in a Haake chamber at various processing temperatures and shear rates. The flexural modulus and morphological characteristics of the composites were evaluated and compared with pure polypropylene. Optimization experiments indicated that a temperature of 170 °C, shear rate of 60rpm and green coconut fiber content of 30% showed the best properties by flexural modulus. These observations were confirmed by a morphology analysis.

Mechanical properties of tender coconut (Cocos nuciferaL.): Implications for the design of processing machineries

“…For the preparation of the aforementioned products, tender coconut husk has to be removed by manual or mechanical means. Researchers have reported that tender coconut husk weight constitutes about 85% of the fruit weight (Ishizaki, Visconte, Furtado, de Oliveira, & Leblanc, ). To the best of our knowledge, limited numbers of commercial machines are available for mechanical chopping and/or trimming of tender coconut because of its hard nature.…”

Mechanical and Wear Characterization of Nano Based Calotropis Gigantea Fiber Reinforced Polyester Composites

“…The composites made up of renewable soy protein based resins and high strength liquid crystalline cellulose fibers [12] and jute reinforced biodegradable Nano-bio composite using soy milk as matrix and Nano clay as additive [13] are recently invented and their properties were studied. Marina et al studied the characterization of Green Coconut Fiber Composites [14].…”