高锰酸钾对芳纶的表面改性研究  

Surface modification of aramid fiber with potassium permanganate

作　　者：凌新龙[1] 黄继伟[1] 岳新霞[1] 林海涛[1] 蒋芳[1] 

机构地区：[1]广西工学院生物与化学工程系,广西柳州545006

出　　处：《合成纤维工业》2011年第1期43-45,共3页China Synthetic Fiber Industry

基　　金：广西自然科学基金(2010GXNSFA013045);广西工学院科学基金资助项目(院科自1074017)

摘　　要：利用高锰酸钾在强酸性条件下具有氧化性的特性对芳纶进行表面改性,采用正交实验探讨了硫酸浓度、高锰酸钾含量、处理温度和处理时间对芳纶力学性能的影响,采用扫描电子显微镜和生物显微镜观察处理前后芳纶的表面形貌。结果表明:最优工艺为硫酸质量分数10%,高锰酸钾浓度5g/L,处理温度为30℃,处理时间35min。改性后的芳纶强度损失不大,表面产生线状刻蚀,粗糙度提高。The surface modification of aramid fiber was conducted using potassium permanganate owing to its oxidative property in strong acid. The effects of sulfuric acid concentration, potassium permanganate content, treating temperature and time on the mechanical properties of aramid fiber were discussed by orthogonal experiment. The surface morphology of untreated and treated aramid fibers was observed by scanning electron microscopy and biomicroscopy. The results showed that the optimal experimental conditions were as followed： 10% sulfuric acid by mass fraction concentration, 5 g/L potassium permanganate, treating tempera- ture 30 ~C and time 35 min. The strength loss was not great, the line etching appeared on the surface and the roughness increased after the modification.

关 键 词：芳纶 高锰酸钾 改性 表面形态 减重率 

分 类 号：TB304[一般工业技术—材料科学与工程]