繊維の圧縮特性に関する研究 : (第 12 報)単独繊維塊の圧力と空隙率における温度依存性

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The purpose of the research in this paper is to make clear the behaviour of temperature dependence on the compressional behaviour of fibres. Therefore, the author trial manufactured an apparatus for measuring behaviour of temperature dependence. This apparatus is assembled by five sections. These five sections are from A section to E section. The name of each section is the following. Namely, A section is a part of regulating pressure. B section is a section of regulating temperature. Also, C section is a part on the tank of increasing and dereasing pressure. D section is a section of refrigeratory. And, E section is a part of recording the movements of the column of mercury into the glass capillary tube for calculating the changeable quantity of volume of fibre's lump through increasing and decreasing pressure. In order to give official approval to normal operation of this apparatus of trial manufacture, the author searched for a relation among pressure P (kg/cm^2), porosity percentage ε(%), percentages of critical porosity in theory ε'(%) and temperature T(^℃). In order to check up to normal operation of this apparatus, the first step adopted case of the first time in the increasing and decreasing of pressure. The range of pressure is from 0 (kg/cm^2) to 5 (kg/cm^2). As the single fibre's lump of the test piece in this experiment is following. Namely, Viscose Rayon (crimped dull) 3 deniers×76m/m, Nylon 3 deniers×70m/m and Beslon 3 deniers×55m/m have been used. The arrangement of all these fibres is case of non-parallel in direction of single fibre's arrangement. As a first step, range of temperature set within the limits of from 10^℃ to 80^℃. And the experiment was tried by steps of 10^℃ of temperature each. The results of these experiments of single fibre's lump was investigated through the relation that is made by following each graph. Namely, P∿ε curve is a relative curve between pressure P (kg/cm^2) and porosity ε(%) in that time of each step from 10^℃ to 80^℃ in temperature through the test pieces, Viscose Rayon, Nylon and Beslon. Further, this graph is a drawing of the develop ment tendency between temperature T^℃ and difference of porosity ε_D (%) in that time of pressure P=0 (kg/cm^2) and 5 (kg/cm^2) through the test pieces, Viscose Rayon, Nylon and Beslon. Here, the author found that these investigated results had not contradictory points. Thus, rationality of this trial manufactured apparatus was established.
金城学院大学の論文
1979-02-10

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 12 報)単独繊維塊の圧力と空隙率における温度依存性

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