1. Study on the Controllable Preparation of Nd 3+ Doped in Fe 3 O 4 Nanoparticles for Magnetic Protective Fabrics.
- Author
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Song, Xiaolei, Xu, Congzhu, Yao, Wendong, Wen, Jieyun, Wei, Qufu, Li, Yonggui, and Feng, Xinqun
- Subjects
IRON oxide nanoparticles ,MAGNETIC nanoparticles ,NANOPARTICLE size - Abstract
Magnetic protective fabrics with fine wearability and great protective properties are highly desirable for aerospace, national defense, and wearable protective applications. The study of the controllable preparation method of Nd
3+ doped in Fe3 O4 nanoparticles with supposed magnetic properties remains a challenge. The characterization of the microstructure, elemental composition, and magnetic properties of NdFe2 O4 nanoparticles was verified. Then, the surface of NdFe2 O4 was treated with glyceric acid to provide sufficient –OH. Subsequently, the connection of the nanoparticle by the succinimide group was studied and then grafted onto cotton fabrics as its bridging effect. The optimal loading rate of the functional fabrics with nanoparticles of an average size of 230 nm was 1.37% after a 25% alkali pretreatment. The color fatness to rubbing results showed better stability after washing and drying. The corresponding hysteresis loop indicated that the functional fabrics exhibited typical magnetism behavior with a closed "S" shape and a magnetic saturation value of 17.61 emu.g−1 with a particle size of 230 nm. However, the magnetic saturation value of the cotton fabric of 90 nm was just 4.89 emu.g−1 , exhibiting controllable preparation for the aimed electromagnetic properties and great potential in radiation protective fields. The electrochemical properties of the functional fabrics exhibited extremely weak electrical conductivity caused by the movement of the magnetic dipole derived from the NdFe2 O4 nanoparticles. [ABSTRACT FROM AUTHOR]- Published
- 2023
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