繊維の圧縮特性に関する研究 : (第 23 報)物理的要因の解明 : 単独繊維塊の場合

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The purpose of the research in this paper is to make clear physical chief factors on the compressional behaviour of fibres in case of each single fibre's lump. As physical chief factors on the compressional behaviour of fibres is following, total porosity percentage or total strain of volume percentage, porosity percentage or strain of volume percentage in that time begin an experiment Do(%), total compression D(%), elastic compression or compressive elasticity Dc(%), residual compression Dp(%), degree of compressional resilience or compressive elastic degree Dc/D(%), compressive percentage or compressional percentage D/Do(%), total quantity of energy A+B (cm^2), quantity of platic energy A (cm^2), quantity of elastic energy B (cm^2), degree of elasticity into compressional energy B/A+B (%), permanent deformation Do-D_1/Do(%)=Dp/Do(%), elastic after effect I_1∿I_3(%), porosity percentage ε(%), strain of volume percentage Ev・p (%), compressional curve Io∿I, recovery curve I∿I_1,pressure P (kg/cm^2), percentage of critical porosity in theory ε'(%) and percentage of critical strain of volume in theory E'v・p(%). Also, as the test pieces in this experiment, Nylon (1.5 deniers×44m/m, 3 deniers×63m/m, 3 deniers×70m/m, 5 deniers×51m/m, 10 deniers×76m/m and 20 deniers×83m/m), Viscose Rayon Crimped Dull (1.5 deniers×38m/m, 2 deniers×57m/m, 3 deniers×57m/m, 3 deniers×76m/m and 5 deniers×51m/m), Viscose Rayon Bright Staple Fibres (3 deniers×70m/m and 5 deniers×76m/m), Beslon (3 deniers×55m/m, 5 deniers×55m/m and 7 deniers×55m/m), Urylon (3 deniers×63m/m and 5 deniers×51m/m), Pylen (1.5 deniers×38m/m, 2 deniers×51m/m and 3 deniers×76m/m), Tetoron (1.5 deniers×38m/m, 1.5 deniers×70m/m, 3 deniers×38m/m, 3 deniers×70m/m and 6 deniers×51m/m) and Alon (2 deniers×51m/m and 3 deniers×70m/m) have been used. In this experiment, compressional curve Io∿I and recovery curve I∿I_1 between pressure P (kg/cm^2) and porosity percentage ε(%) have been used. And as the number of times in hysteresis adopted case of the first time in the increasing and decreasing pressure. The experiment of this thesis is tried under the pressure from 0kg/cm^2 to 5kg/cm^2 at the each stages of the increase and decrease in pressure. And the author concentrated special attention on the increase and decrease of pressure from 0kg/cm^2 to 0.05kg/cm^2. Where, the author used trial manufactured apparatus for this experiment. This trial manufactured apparatus is Japanese Patent Number 486847. Quantitative measurement of fibre is not easy to conduct chiefly because of its indifinite shape. The important condition required for the apparatus is ever to exactly record the changes of stress imposed on the fibre. Befor the experiment, the author made control of fibre's weight into the gum ball. Also, the author made control of carding of fibre's lump and moisture regain of each fibre's lump as the test pieces in this experiment. Also, before the experiment the author must obtain these factors as a measuring value for calculating the porosity percentage ε(%) and percentage of critical porosity in theory ε' (%). These factors is made by ten factors. Here, quantity of plastic energy A(cm^2), quantity of elastic energy B(cm^2), total quantity of energy A+B(cm^2) and degree of elasticity into compressional energy B/A+B(%) show by factors of area in the relative curve between pressure P (kg/cm^2) and percentage of porosity ε(%). Accordingly, the author measured area of these important factors by the aid of X-PLAN 360 Area Curve Meter which is equipped with Micro-Computer. In this experiment, the author made relative curve between pressure P (kg/cm^2) and porosity percentage ε(%), for variety of each fibre and for denier of each fibre. And the author examined many important and chief factors from relative curve between pressure P (kg/cm^2) and porosity percentage ε(%). Thus, the author accomplished an elucidation of physical chief factors
金城学院大学の論文
1990-03-20

著者

寺島功
金城学院大学

繊維の圧縮特性に関する研究 : (第 23 報)物理的要因の解明 : 単独繊維塊の場合

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