采用共沉淀法制备纳米Fe3 O4和N-三甲氧基硅基丙基-N,N,N-三甲基氯化铵通过氢键结合成为颈状层,脂肪醇聚氧乙烯醚磺酸盐(C9H19)-(C6H4)-(OCH2CH2)20-O(CH2)3-SO3-K+作为反离子,通过静电作用成为纳米粒子的冠状层,制备成无溶剂纳米流体.采用XRD、TEM、FT-IR和TGA对无溶剂纳米流体结构进行表征,采用流变曲线研究不同颈状层结构的无溶剂纳米流体流变性能.结果表明,纳米粒子分散性好,颈状层和冠状层联接到纳米粒子表面,纳米粒子含量为10.42%.随着颈状层分子链变长,无溶剂纳米流体的损耗模量和粘度变小.
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