Biocomposites reinforced with natural fibers: 2000–2010

Cellulosic/synthetic fibre reinforced polymer hybrid composites: A review

A review on the degradability of polymeric composites based on natural fibres

In State of Art: Mechanical and tribological behaviour of polymeric composites based on natural fibres

In this study, the properties and application of natural fiber composites in automobile industries are discussed. Natural fibers are replacing the synthetic fibers in the various parts of automobiles due to their lightweight, low-cost, and environmental aspects. For centuries, natural fibers have been used for making baskets, clothing, and ropes. Now the trend is changing and natural fibers such as: jute, hemp, flax, and sisal fibers are making their ways especially into the components of automobiles. Comparisons of material indices for beam and panel structures were made to investigate the possibility of using natural fiber composites instead of conventional and non-conventional materials.

A Review: Natural Fiber Composites Selection in View of Mechanical, Light Weight, and Economic Properties

In this work, the variation of mechanical properties such as tensile, flexural, and impact strengths of roselle and sisal fibers hybrid polyester composite at dry and wet conditions were studied. The composites of roselle/sisal polyester-based hybrid composites with different weight% of fibers were prepared. Roselle and sisal fibers at a ratio of 1:1 had been incorporated in unsaturated polyester resin at various fiber lengths. When the fiber content and length of the roselle and sisal fibers were increased, the tensile and flexural strength of the composite increased. When the samples were subjected to moisture environment, decrease in tensile and flexural strength was observed. The maximum percentage of strength reductions in tensile and flexural strength were observed for the composites having the fiber length of 150 mm and 30 wt% fiber content. For impact strength, it was with the composites of 20 wt% and 150 mm at wet conditions compared to dry conditions. The percentage of strength reductions increased with fiber content and length in wet conditions. A scatter in the impact strength values was identified on both the conditions. The moisture absorption characteristics of the natural fibers are very important to produce the natural fiber hybrid composite materials with the positive hybrid effect. The experimental results are compared with theoretical and empirical or statistical results and found to be in good agreement.

Effect of moisture absorption on the mechanical properties of randomly oriented natural fibers/polyester hybrid composite

In this investigation, the mechanical properties of natural fibers reinforced polyester hybrid fiber reinforced polyester composite were analysed based on the wt % and length of the fibers. The glass fiber polyester composites were also prepared to compare the properties. The fractured surfaces of the composite specimens were investigated using scanning electron microscopy. The tensile and the flexural strength increases with the fiber length and content. On the other hand, the impact strength decreases with the fiber length and content. The experimental results were compared with predicted results using regression model.

Mechanical properties of natural fibers reinforced polyester hybrid composite

In this work, the alkali-treated roselle and sisal fibers
were used as reinforcement fillers for thermosetting
matrix with aim of obtaining better mechanical properties
and machinability of natural fiber hybrid polyester
composite. However, their mechanical properties and
machinability were compared with untreated fiber composites.
The roselle and the sisal fibers were subjected
to a 10% sodium hydroxide solution treatment at different
duration of 2, 4, 6, and 8 h. Besides, the fractured
surfaces of composite specimen were investigated
using scanning electron microscopy. Drill hole profiles
were analyzed using profile projector and machine
vision inspection system. An improvement in strength
and stiffness combined with high toughness was
achieved by treating the fibers using 10% NaOH solution.
POLYM. COMPOS., 31:723–731, 2010. a 2009 Society of
Plastics Engineers

B. Pazhanivel

Papers

Effect of moisture absorption on the mechanical properties of randomly oriented natural fibers/polyester hybrid composite

Mechanical properties of natural fibers reinforced polyester hybrid composite

Influence of alkali-treated fibers on the mechanical properties and machinability of roselle and sisal fiber hybrid polyester composite