Study on die-swell behavior of meta-aramid solutions during dry-wet spinning process

关键词：

PMIA die-swell dry jet wet-spinning extrusion temperature extrusion pressure

类别：

纤维 >> 合成纤维

来源：

ICAFPM 2011

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pdf文件

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1151K

简介：

The die-swell ratio for meta-aramid (PMIA) solutions was measured by gravimetric method. The effects of extrusion conditions on die-swell behavior of the PMIA solutions were studied with respect to the temperature of solutions, the extrusion pressure and the length/diameter ratio (L/D) of the die. The results showed that die-swell ratio (B) of PMIA solutions increased with rising of extrusion pressure from 0.2MPa and 0.6MPa, while it decreased with the rising of temperature from 40℃ to 60℃. When pressure and temperature were constant, die-swell ratio would decline with the L/D ratio increasing from 1 to 9.

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epce

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2011-10-11 12:57:56

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