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Date of Publication:2007-01-01

Journal:功能材料

Issue:1

Page Number:123-126

ISSN No.:1001-9731

Abstract:The oxide layers of Ni nanoparticles were removed by acid hydrochloric dilute, then modified by silane coupling agents (KH-550). The modified nanoparticles were characterized by activation index, IR etc. The electromagnetic parameters were measured with the method of coaxial wave-guide by Agilent 8722ES microwave network analyzer. The electromagnetic wave losses were simulated with the measured electromagnetic parameters. It is indicated that 5 wt% silane coupling agents is the best concentration for modification of Ni nanoparticles, with which the best dispersion and improved electromagnetic wave absorption were obtained.

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