Improvement of Moisture Sorption of Polyurethane Fiber by Blending Cellulose

Yousuke Miharu; Yasumitsu Uraki; Kohki ItoyamaFumio MiyazawaHiroaki TanibeYoshihiro Sano

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Improvement of Moisture Sorption of Polyurethane Fiber by Blending Cellulose

机译：Improvement of Moisture Sorption of Polyurethane Fiber by Blending Cellulose

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An improvement of moisture sorption (MS) ability of polyurethane (PU) was attempted by blending cellulose (Cell). PU-Cell blend was prepared from PU-cellulose diacetate (CA) blend by saponification. CA was apparently miscible with PU in a wide range of blend ratio on the optically microscopic observations. However, the incompatible interaction between them in less than 70 % CA content was suggested by DELTAb from the viscosity measurement. Saponified CA formed cellulose II structure in PU at above 30 % CA content. Essentially, CA was, therefore, immiscible with PU. The MS of PU fibers blended with 5 % of CA was dramatically enyhanced after 1 % NaOH treatment. In the case of films, the MS was increased by the increase in CA content without saponification. By saponification, the MS ability was further improved.

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《繊維学会誌》 |2002年第10期|375-380|共6页
作者
Yousuke Miharu; Yasumitsu Uraki; Kohki ItoyamaFumio MiyazawaHiroaki TanibeYoshihiro Sano;
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Graduate School of Agriculture, Hokkaido University, N-9, W-9, Kita-Ku, Sapporo 060-8589, JapanGraduate School of Agriculture, Hokkaido University, N-9, W-9, Kita-Ku, Sapporo 060-8589, JapanInstitute of Research & Development, Fuji Spinning Co., LTD., 47;

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中图分类化学纤维工业;
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Improvement of Moisture Sorption of Polyurethane Fiber by Blending Cellulose

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