Effect of coagulation temperature on structures and properties of poly(p-phenylene benzobisoxazole) (DHPBO) fibers during dry-jet wet-spinning process |
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| Authors: | ZHANG Tao JIN JunHong HU DaYong YANG ShengLin LI Guang & JIANG JianMing State Key Laboratory for Modification of Chemical Fibers Polymer Materials College of Material Science Engineering Donghua University Shanghai China |
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| Affiliation: | ZHANG Tao,JIN JunHong,HU DaYong,YANG ShengLin,LI Guang & JIANG JianMing State Key Laboratory for Modification of Chemical Fibers , Polymer Materials,College of Material Science , Engineering,Donghua University,Shanghai 201620,China |
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| Abstract: | The effect of coagulation temperature on the morphology, microstructures and mechanical properties of dihydroxy poly(p-phenylene benzobisoxazole) (DHPBO) fibers was investigated during dry-jet wet- spinning process, in which the coagulation bath concentration and drawn ratio were kept as 10 wt% of PPA in water and 1.7, respectively. The structures and mechanical properties of the as-spun DHPBO fibers were characterized by FTIR, XRD, SEM, and single fiber tensile testing. The results indicated that in PPA/H2... |
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| Keywords: | DHPBO fibers coagulation temperature degree of crystallization microstructures mechanical properties |
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