Composites of polyaniline (PANI) with both conducting and ferromagnetic feature were synthesized by an improved method proposed by the authors. The electrical and ferromagnetic properties of the composites were measured as a function of the concentration of KOH solution used during polymerization. T
Synthesis and properties of magnets/polyethylene composites
โ Scribed by Xinpei Cao; Yingwu Luo; Linxian Feng
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 110 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
Polyethylene-based magnetic composites have been prepared by ethylene polymerization on the surface of NdFeB magnets, which is previously activated by ball milling with catalyst components. The level of magnets has been controlled by catalyst preparation and polymerization parameters such as Al/Ti ratio and polymerization temperature. The coertivity and the residual magnetizability were investigated. It was found that the magnetic properties of magnet powders are largely retained. In addition, in contrast to composites prepared by melt mixing, the adhesion force between magnets and polymer matrix is improved significantly and better mechanical properties are expected.
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