Development of continuous vapor generation for calibration styrene with permeation tube method

Abstract

能性物質 1) に分類している。スチレンに関する室内 濃度指針値として世界保健機関 (WHO) は2 6 0 ・ g / m 3 (0. 0 6 p p m) 2) ，厚生労働省は2 2 0 ・ g / m 3 (0. 0 5 p p m) 3) を勧

In-plane shear modulus of extruded polystyrene foam measured by the torsional vibration, square-plate twist and simple shear methods

“…When using the correction coefficient c represented by equations (11) to (14), a reduction of the dependence of the IPSM value on the values of L and L/H was expected. Figure 8 shows the relationship between the IPSM value corrected by introducing the c value and the values of L and L/H.…”

“…Because of this issue, the mechanical properties of cellular materials, including XPS have often been neglected in practical operations, despite the various examples focusing on the deformation behaviour of cells from a scientific aspects. [1][2][3][4][5][6][7][8] In these decades, XPS has been used in flooring materials, such as tatami mats used in traditional rooms in Japan, [9][10][11][12] heat-storage tanks 13 and cushioning material in helmets. [14][15][16] Because of these utilisations, it is important to accurately characterise the mechanical properties of XPS.…”

Measurement of the Young’s modulus and shear modulus of extruded polystyrene foam by the longitudinal and flexural vibration methods

“…Extruded polystyrene foam (XPS) is usually used for thermal insulation; therefore, its thermal properties have been examined in detail. Currently, however, XPS is also used in constructions such as sandwich panels, [1][2][3][4] flooring materials such as tatami mats used in traditional rooms in Japan, [5][6][7][8] heat-storage tanks, 9 etc. To ensure that such construction designs are reliable and cost-effective, it is therefore important to accurately characterise the mechanical properties of XPS.…”

Measurement of the Shear Properties of Extruded Polystyrene Foam by In-Plane Shear and Asymmetric Four-Point Bending Tests

“…As a result, the strain obtained from the strain gauge output is often smaller than the actual strain. Several examples have examined the possibility of using the strain gauge for cellular plastics [30,31]. In this study, the tension and compression tests were conducted for the strain calibration, and it was examined whether the strain obtained from the strain gauge could be transformed into the actual strain.…”

“…At present, extruded polystyrene foam (XPS) is used in the construction of sandwich panels [1][2][3][4], flooring materials, such as tatami mats, used in traditional rooms in Japan [5][6][7][8], and heat-storage tanks [9] and geofoams [10][11][12], because the lightweight nature of XPS is effective to attenuate the seismic forces. To ensure that such construction designs are reliable and cost-effective, it is important to accurately characterize the mechanical properties of XPS, including the shear properties, such as the shear modulus and shear strength.…”