Abstract
Handle characteristics of “Tatami” surface matting made of polyacrylonitrile (=PAN) fiber were investigated by panels of women students using paired comparison and ranking methods. Basic thermal properties such as thermal insulation value, thermal conductivity, q-max and mechanical properties such as compressional and surface properties for the “Tatami” surface were measured precisely comparing with natural rush and polypropylene(=PP) “Tatami” surface. “Tatami” surface matting made of PAN showed higher thermal insulation value than those made of rush and PP. Apparent thermal conductivity and q-max of PAN showed smaller values than rush and PP. PAN showed softness in compression, however, recovered not enough. Good handle for “Tatami” surface was achieved by smooth and dry feeling. Handle characteristics of PAN “Tatami” surface is good as natural rush and may be used for winter season. “Tatami” surface is a good application of PAN fiber produced by successive polymerization and direct spinning method.
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