繊維の圧縮特性に関する研究 : (第 10 報)単独繊維塊の履歴に見る圧力, 持続性, 回復性, 空隙率及び体積歪率の関係

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The purpose of the experiment in this paper is to make clear the compressional behavior through the relation of pressure, durability, property of recovery, porosity percentage and strain of volume percentage in the hysteresis of single fibre's lump. It is to examine its hysteresis phenomenon through the relation of N∿E, N∿S, N∿ε and N∿E_<v・P> under the pressure P=5kg/cm^2 at the moment, N∿ε and N∿E_<v・P> of from the pressure P=0kg/cm^2 to rest in single fibre's lump of several kind's fibres by the aid of improved equipment, trial manufactured equipment that is study developed by author in a series of this paper, registered as Patent Number 486847 in Japan Patent Office. Here P (kg/cm^2) represents the pressure of from the pressure 0 (kg/cm^2) to 5 (kg/cm^2) at the moment : N, the number of times in hysteresis of the increase and decrease in pressure : E, limit point of continuation in compression : S, start point of recovery : ε, porosity percentage : E_<v・P>, strain of volume percentage : The author concentrated special attention on the increase and decrease of pressure from 0 (kg/cm^2) to 0.05 (kg/cm^2). As the number of times in hysteresis is from the first time to the fifth time in the increasing and decreasing pressure. As the several kind's fibre of test pieces, Nylon (1.5d.×44m/m, 3d.×70m/m, 10d.×76m/m, 20d.×83m/m), Viscose Rayon Crimped Dull (1.5d.×38m/m, 3d.×57m/m, 5d.×51m/m), Pylen (1.5d.×38m/m, 2d.×51m/m, 3d.×76m/m), Urylon (3d.×63m/m, 5d.×51mm), Tetoron (1.5d.×38m/m, 3d.×70m/m, 6d.×51m/m), Beslon (3d.×55m/m, 5d.×55m/m, 7d.×55m/m) and Alon (2d.×51m/m, 3d.×70m/m) have been used. Before the experiment, greatest possible care taken to the regulate and arrangement the test pieces used. All of these fibres is not straight filament, but crimped fibre. The author wishes to refer to from Part I to Part IX in this paper about the theoretical equation of porosity percentage ε(%) and strain of volume percentage E_<v・P>(%) under the pressure P (kg/cm^2). The author examined compressibility, compressional resilience, property of recovery, durability of compression, comparison of porosity percentage ε(%) and critical porosity percentage in theory ε' (%), comparison on the strain of volume percentage E_<v・P> (%) and critical strain of volume percentage in theory E'_<v・P> (%) through the analytical research of N∿E, N∿S, N∿ε and N∿E_<v・P> broken line graph. Thus, the author consider compressional behavior on the basis of these experimental results in the hysteresis of single fibre's lump.
金城学院大学の論文
1976-12-25

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寺島功
金城学院大学

繊維の圧縮特性に関する研究 : (第 10 報)単独繊維塊の履歴に見る圧力, 持続性, 回復性, 空隙率及び体積歪率の関係

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