Studying the Efficiency of the New Cotton Regenerator
Mirsolikh Agzamov,
Akmalkhoja Khotamovich Inagamov,
Mirkhosil Mirkhosil Mirsalikhovich Agzamov
Issue:
Volume 2, Issue 4, December 2018
Pages:
33-39
Received:
19 November 2018
Accepted:
4 December 2018
Published:
3 January 2019
DOI:
10.11648/j.ajmme.20180204.11
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Abstract: The article reflects the results of studies to determine the effectiveness of the created technological process from the waste of purifiers. The purpose of this work is to substantiate the improvement quality and output of fiber due to the modernization of the process regeneration of cotton slices from the waste products of cotton purifier machine. Improvement of the process of regeneration of the cotton slices from the waste of cotton purifiers by supplying the cotton slices to the regenerator, previously separated from the passive litter, with the development of a special device. In order to obtain the most complete characterization of such processes with a minimum number of experiments, experiments were carried out with extreme variants - with the supply of regenerated cotton slices to raw cotton before cleaning and ginning processes. Calculation based on weighted average clogging shows that if the number of regenerated cotton slices after the regenerator did not exceed 4% of the mass of raw cotton being cleaned, then their debris after triple cleaning by 1XK did not exceed 7.75%, which is almost 5 times higher than the debris of the cotton being cleaned raw. The most promising way of implementing the developed recommendation on the supply of sufficiently purified regenerated cotton slices into raw cotton before ginning is the development of a regenerator-purifier based on the 1РХ regenerator with built-in purifying sections from small litter.
Abstract: The article reflects the results of studies to determine the effectiveness of the created technological process from the waste of purifiers. The purpose of this work is to substantiate the improvement quality and output of fiber due to the modernization of the process regeneration of cotton slices from the waste products of cotton purifier machine....
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The α- and β-Relaxation Processes of Polymeric Chitosan from Squid Gladii as Revealed by Dynamic Mechanical Analysis
Juma Hanif,
John Onyango Agumba,
Katana Gona Gabriel
Issue:
Volume 2, Issue 4, December 2018
Pages:
40-45
Received:
21 November 2018
Accepted:
13 December 2018
Published:
22 January 2019
DOI:
10.11648/j.ajmme.20180204.12
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Abstract: Dynamic mechanical analysis, DMA, is a technique that can be used to study the mechanical properties of polymeric biomaterials so as to help unveil the physiological environments in which they can be applied. In this study, mechanical properties of chitosan (poly (β-(1→4)-N-acetyl-D-glucosamine)) thin films extracted from squid gladii found along the coastal areas of Kilifi and Mombasa in Kenya have been systematically investigated using DMA technique. From the study, chitosan thin film have shown a β- relaxation process occurring between 293K and 323K and the α- relaxation process hereby referred to as glass transition (Tg) occurring between 393K and 423K. Additionally, the chitosan films under the study are viscoelastic with very low mechanical damping suggesting that they have very high rigidity and resistance to deformation. The results from this study have thus given us an insight of the operating temperature range of the biomaterial.
Abstract: Dynamic mechanical analysis, DMA, is a technique that can be used to study the mechanical properties of polymeric biomaterials so as to help unveil the physiological environments in which they can be applied. In this study, mechanical properties of chitosan (poly (β-(1→4)-N-acetyl-D-glucosamine)) thin films extracted from squid gladii found along t...
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