Some Effect of Chemical Treatment by Ferric Nitrate Salts on the Structure and Morphology of Coir Fibre Composites

Abstract

The present study shows some important effects of chemical treatment on the structure and morphology of coir fibre. The objective of the present study is to optimise overall properties of coir fibre so as to use coir fibre as a reinforcing agent in thermoplastic and thermosetting polymers. In the present study, coir fibre is treated with ferric nitrate salt. A thermal treatment has been done at temperature of 1000˚C by using annealing method. X-ray diffraction of the treated coir fibre reveals the crystalline nature of the fibre. Change in morphology has been found in coir fibre when subjected to scanning electron microscopy. Finally, the Fourier transform and infrared spectrographs show the presence of traces of iron oxide:fibre in the prepared composite.

Evolution of Thermo-mechanical Properties of Aluminium-Silicon Alloy (Al-1wt%Si)

“…The nucleation of precipitates in the alloys (Al-Si) was improved by pre-aging quenched specimens approx at the room temperature [15][16][17][18]. This enrichment can be attributed to dislocation loops formed by condensation of quenched -in vacancies.…”

“…The elongations were measured by a dial gauge to an accuracy of ± 10 -5 m. The yield stress, σ y is considered to be the stress corresponding to the first significant deviation from linearity in the starting part of the stress -strain curve. For the Figure 1 (a-d), the maximum stress applied to the sample before fracture was taken as the fracture stress σ f [10][11][12][13][14][15][16][17]. The microstructure of the alloy (Al-1wt% Si) was investigated by using an electron microscope, JEOL (1973 model JEM-100C) [15][16][17][18] working at an accelerating voltages 100 kV.…”

“…In the 60 Co gamma rays cell used, the dose rate was 1.58 KGy/min. Some other relevant information was given in references [15][16][17][18] for data samples preparations.…”

“…The final polish was carried out using commercial slurry (Struers OP-U). The samples were observed under a JEOL (1973 model JEM-100C) [15][16][17][18] by using magnifications between X100 and X5000. The qualitative and quantitative assessments of the chemical compositions of the sample of the alloy (Al-1wt%Si) were done with the Energy Dispersive Spectrometer (EDS) method.…”

Defects of Communication Pipes from Plastic in Modern Civil Engineering

“…The authorswouldlike to acknowledge the keen support for thiswork of the Department of Physics, Faculty of Science, University of Tabuk, SaudiArabia and also the Department of Informatics, Kharkiv National University of RadioElectronics, Kharkiv, Ukraine [9][10][11][12][13][14][15].…”