OALib Journal期刊
ISSN: 2333-9721
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具有固--液转变的磁性fe3o4纳米流体的制备、结构及性能
Keywords: 无机非金属材料,磁性纳米粒子,表面改性,无溶剂纳米流体,固--液转变
Abstract:
?fe3o4纳米粒子与离子型改性剂n,n-二癸基-n-甲基-n-三甲氧基硅正丙基氯化铵进行接枝反应,再采用反离子脂肪醇聚氧乙烯醚磺酸盐的长链阴离子交换cl-,在fe3o4纳米粒子表面得到具有阴、阳离子双电层结构的表面处理层,制备出了无溶剂fe3o4纳米流体。分析结果表明,表面处理层已成功地接枝在fe3o4纳米粒子表面,改性的fe3o4纳米粒子呈单分散,其损耗剪切模量g''明显大于储能剪切模量g',并具有明显的流体行为,室温下存放一年状态稳定,流动性良好。
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