本文通过混酸氧化法制备羧基化单壁碳纳米管(SWNTs-COOH),以聚苯乙烯磺酸钠(PSS)为分散剂,通过磁力搅拌、超声处理,制备SWNTs-COOH-PSS分散液,运用傅里叶红外光谱、显微共聚焦激光拉曼、场发射扫描电子显微镜、透射电子显微镜、紫外-可见光吸收光谱对不同条件下的SWNTs分散液进行表征比较.结果表明:原料SWNTs通过本法成功修饰上羧基,制备的初始质量浓度为3g/L的SWNTs-COOH-PSS分散液,室温静置30天以上不发生絮凝.
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