이타콘산을 함유한 폴리아크릴로니트릴 공중합체의 섬유제조 및 그 물성에 관한 연구
A Study on Fiber Formation and Physical Properties of Polyacrylonitrile Copolymer with Itaconic acid
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Abstract
A study has been made of the dry-jet-wet spinning of PAN copolymer fibers using 60% aqueous zinc chloride solution as solvent and 25∼40% aqueous zinc chloride solution as non-solvent. The technological characteristics of this method were that small streams of dope were extruded from the die and allowed to pass through a short distance of air gap(about 10mm) before entering the spinning bath for full coagulation. This work showed the importances which coagulation condition, stretch ratio and fiber tenacity up to 10.5 g/d could be obtained with elongation of 11∼16%.Individual fibers were evaluated on the basis of density and mechanical properties such as tenacity and elongation etc.