| 聚四氟乙烯纤维中杂质分离技术研究 |
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| 引用本文： | 任忠海,李天宝,钟月香,李丽华.聚四氟乙烯纤维中杂质分离技术研究[J].有机氟工业,2014(2):12-14. |
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| 作者姓名： | 任忠海 李天宝 钟月香 李丽华 |
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| 作者单位： | [1]广东检验检疫技术中心,广东广州510623 [2]江门出入境检验检疫局,广东江门529000 |
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| 基金项目： | 广东省科技计划项目（20118010400019）. |
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| 摘 要： | 以HNO3＋H2O2为消解液对载体纺丝法制得的聚四氟乙烯纤维进行微波消解，结果样品回收率约为97．91％，说明烧结残留的载体杂质含量约为2．09％，样品由棕色变为通体白色半透明，结合电镜图片证明杂质基本去除完全。处理后的纤维强度无明显变化，平均伸长率则明显提高。
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| 关 键 词： | 聚四氟乙烯纤维 微波消解 杂质去除 载体纺丝法 乳液纺丝法 |
Study on Removal Techniques for Impurities in Polytetrafluoroethylene Fiber |
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| Ren Zhonghai,Li Tianbao,Zhong Yuexiang,Li Lihua.Study on Removal Techniques for Impurities in Polytetrafluoroethylene Fiber[J].Organo-Fluorine Industry,2014(2):12-14. |
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| Authors: | Ren Zhonghai Li Tianbao Zhong Yuexiang Li Lihua |
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| Affiliation: | 1. Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China; 2. Jiangmen Entry- Exit Inspection and Quarantine Bureau, Jiangmen 529000, China) |
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| Abstract: | Taking HNO3 ＋ H2O2 as the digestion solution, polytetrafluoroethylene fiber that were prepared by carrier spinning method are digested by microwave. The sample recovery rate is 97.91% ; the carrier of sintering residual impurity content is about 2.09%. The samples＇ color change from brown to translucent white; and SEM pictures prove that the impurities had removed completely. For fiber strength , there was no significant difference between before and after microwave digestion, but the average elongation is improved obviously after treatment. |
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| Keywords: | polytetrafluoroethylene fiber microwave digestion rid of impurities gel spinning emulsionspinning |
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