Extraction preparation and Charaterization of macro micro and Nano size cellulose fibers from cocos Nucifera var aurantiaca peduncle and Its polymer composites

Abstract

In recent trends, the metallic materials are replaced by thermosetting plastics are widely used in many applications such as sports equipment s, automobiles constructions etc. In recent years, the use of natural fibers and its derived forms (micro and nano size) as reinforcement in composites has been attracting attention with response to the needs for protection of the green and natural environment. A little energy is needed for the extraction of fibers, it possesses lightweight, high specific modulus, low-cost, renewability, biodegradability, and lower level hazards as compared to the synthetic fibers. In this aspect, the present investigation, alkali treated (5 wt% ) new natural peduncle fibers, which are derived from the locally grown Cocous nucifera var Aurantiaca tree are taken for study to understand the physicochemical, mechanical, thermal properties and micro structural behaviors in comparison with other known classical natural fibers for potential replacement for polymer based composites.The thesis work deals with Alkali treated Cocous nucifera var Aurantiaca Peduncle Fibers (ACAPFs) reinforced epoxy composites by varying the fiber length (macro dimensions) and weight percentages in random orientation to investigate the mechanical properties. Progressive enhancement of mechanical properties is observed by increasing the fiber length up to 30 mm and 40 wt.% in epoxy matrix, which are comparable with other classical natural fiber-reinforced epoxy composites. The surface morphology of the tensile, flexural and impact fractured specimen of ACAPFs reinforced epoxy composites through scanning electron microscope image shows randomly orientation distribution of fiber, more voids formation and rich region of matrix (epoxy). newline