CAJ | 학술논문

采用聚乙二醇-600(PEG-600)改性丙烯腈-衣康酸二元共聚的聚丙烯腈(PAN)纺丝液,并通过湿纺制备出初生纤维.通过接触角测试、光学显微镜、扫描电镜(SEM)、X-射线衍射(XRD)研究了PEG-600用量对PAN树脂亲水性、初生纤维横截面形貌、晶态结构的影响.结果表明,PEG-600用量为0.1%时,与未加PEG-600的样品相比,PAN树脂的亲水性降低,初生纤维的横截面仍为非圆形,皮芯结构增强,结晶度降低,晶粒尺寸变大;PEG-600用量为0.3%～0.5%时,与未添加PEG-600的样品相比,PAN树脂的亲水性较未加PEG-600的样品的亲水性增加,初生纤维的横截面为圆形,皮芯结构减弱,结晶度降低但比PEG-600用量为0.1%样品的高,晶粒尺寸与PEG-600用量为0.1%样品的相同.
채용취을이순-600(PEG-600)개성병희정-의강산이원공취적취병희정(PAN)방사액,병통과습방제비출초생섬유.통과접촉각측시、광학현미경、소묘전경(SEM)、X-사선연사(XRD)연구료PEG-600용량대PAN수지친수성、초생섬유횡절면형모、정태결구적영향.결과표명,PEG-600용량위0.1%시,여미가PEG-600적양품상비,PAN수지적친수성강저,초생섬유적횡절면잉위비원형,피심결구증강,결정도강저,정립척촌변대;PEG-600용량위0.3%～0.5%시,여미첨가PEG-600적양품상비,PAN수지적친수성교미가PEG-600적양품적친수성증가,초생섬유적횡절면위원형,피심결구감약,결정도강저단비PEG-600용량위0.1%양품적고,정립척촌여PEG-600용량위0.1%양품적상동.
Spinning solution of acrylonitrile-itaconic acid copolymer was modified by polyethylene Glycol-600.The nascent fibers were produced by wet spinning.The influence of PEG-600 content on the hydrophilicity of the PAN resin, the cross section structure and crystal structure of the PAN nascent fibers were characterized by contact angle,optical microscope,scanning electron microscope(SEM)and X-ray diffraction(XRD).The results showed that,when the PEG-600 content was 0.1%,compared with the PAN resin without PEG-600,the hydrophilicity of the PAN resin decreased, and for the nascent fibers,the cross section was also non-circular,the skin-core structure enhanced,the crystallinity decreased,the crystal size largened;when the PEC-600 degree was 0.3%～0.5%,compared with the PAN resin without PEG-600,the hydrophilicity of the PAN resin increased,and for the nascent fibers,the cross section was circle,the skin-core structure weakens,the crystallinity decreases but increases compared with the nascent fibers with 0.1%PEG-600,the crystal size was the same to that of the nascent fibers with 0.1% PEG-600.