| 磷酸溶液处理对对位芳纶纤维结构的影响 |
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| 引用本文： | 唐爱民,周彤,孙智华. 磷酸溶液处理对对位芳纶纤维结构的影响[J]. 造纸科学与技术, 2009, 28(5): 33-36,61 |
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| 作者姓名： | 唐爱民 周彤 孙智华 |
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| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室,广东,广州,510640 |
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| 基金项目： | 教育部"长江学者和创新团队发展计划"项目 |
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| 摘 要： | 用黏度法、X射线衍射（XRD）、光学显微镜及扫描电镜（SEM）等测试手段对磷酸溶液处理前后对位芳纶纤维的相对分子质量、聚集态结构、形态结构进行了研究，探讨了磷酸溶液处理对对位芳纶纤维不同层次结构的影响。结果显示：未处理对位芳纶纤维的黏均相对分子质量为2．70万，用50％磷酸溶液处理4h后，其相对分子质量降低为2．38万；而其处理前后结晶度分别为58．24％、59．58％，变化不大。未处理对位芳纶纤维的表面光滑，经磷酸溶液处理后纤维原纤化作用明显，表面可观察到大量的微细纤维。
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| 关 键 词： | 对位芳纶纤维 磷酸 结构 |
Effects of Phosphoric Acid Treatment on Structure of PPTA Fibers |
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| Tang Aimin,Zhou Tong,Sun Zhihua. Effects of Phosphoric Acid Treatment on Structure of PPTA Fibers[J]. Paper Science & Technology, 2009, 28(5): 33-36,61 |
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| Authors: | Tang Aimin Zhou Tong Sun Zhihua |
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| Affiliation: | Tang Aimin Zhou Tong Sun Zhihua (State Key Lab of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China) |
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| Abstract: | The molecular mass,super-molecular and morphology structure of PPTA(poly(p-phenylene terephthalamide)) fibers before and after phosphoric acid treatment were studied by means of viscometer,X-ray diffraction(XRD),light microscopy and scanning electron microscopy(SEM).The results show that the visicoty-average molecular mass of PPTA fibers reduced from 27,000 to 23,800 after the phosphoric acid treatment.The crystallinity of PPTA fibers before and after the treatment are 58.24% and 59.58% respectively and doe... |
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| Keywords: | PPTA fiber phosphoric acid structure |
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