Comprehensive characterization of industrially discarded fruit fiber, Tamarindus indica L. as a potential eco-friendly bio-reinforcement for polymer composite

• Published in: Journal of cleaner production Vol. 142; pp. 1321 - 1331
• Main Authors: Binoj, J.S., Edwin Raj, R., Daniel, B.S.S.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 20.01.2017
• Subjects: Fruit fiber characterization; Modelling; Natural fiber composites; Tamarindus indica L; Thermo-mechanical properties; Water absorption study; Tamarindus indica L; Modelling; Water absorption study; Fruit fiber characterization; Natural fiber composites; Thermo-mechanical properties
• ISSN: 0959-6526; 1879-1786
• DOI: 10.1016/j.jclepro.2016.09.179

Utilizing industrially discarded bio-waste as a bio-reinforcement for polymer composite is one way to find alternate solution for harmful, conventional man-made vitreous fibers. In this work, one such agro waste, tamarind fruit fiber is tested comprehensively for its potentiality as a reinforcement in unsaturated polyester matrix to optimize the mechanical properties. 40 wt% fiber content provides optimum properties, while further addition of fiber reduces the strength due to ineffective bonding between the fiber and the matrix. This is revealed in the microscopic images of the fractured tensile specimens. The experimental results are verified and correlated with the Hirsch's and Series models and found that Hirsch's model agrees well with the experimental results. Thermal stability and aquatic properties are ascertained by the degradation temperature and the water absorption characteristics in fresh and sea water. The diffusion coefficient is found to follow pseudo-fickian behavior. Comprehensive analysis of this material confirms its applicability for light weight automotive and marine applications. [Display omitted] •Lignocellulosic Indian fruit fiber characterized comprehensively in this work.•Favorable bonding feature makes it a potential eco-friendly bio-reinforcement.•Thermal stability and specific strength attracts auto and aero applications.•Water absorption characteristics doesn't hinder its aquatic application.