| Effect of Magnetic Powder Blended on Properties of Magnetic NBR Compound |
| Received:December 10, 2021 Revised:December 10, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.04.0260 |
| Key Words: ferrite magnetic powder；NdFeB magnetic powder；blending；magnetic NBR；magnetic property |
| Author Name | Affiliation | E-mail | | LIANG Lin | Qingdao University of Science and Technology | 15684739167@163.com | | ZHANG Hanzhu | Qingdao University of Science and Technology | | | ZHANG Baogang | Qingdao University of Science and Technology | | | DING Naixiu* | Qingdao University of Science and Technology | 15684739167@163.com | | LIU Guangye | Qingdao University of Science and Technology | |
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| Abstract: |
| Magnetic nitrile butadiene rubber（NBR） compounds were prepared with ferrite magnetic
powder and NdFeB magnetic powder as magnetic fillers. The effects of the two magnetic powders used alone
and their blends on the properties of the compounds were studied. The results showed that when the two kinds
of magnetic powder were used alone，the magnetic properties of the magnetic NBR compound prepared by
NdFeB magnetic powder were better. When the two kinds of magnetic powder were applied together，with the
increase of the dosage of NdFeB magnetic powder，the hardness of the compound increased，and the tensile
strength and tear strength first increased and then decreased，reaching the maximum values when the blending
ratio of ferrite magnetic powder/NdFeB magnetic powder was 700/10. The residual magnetic induction
intensity and the maximum magnetic energy product of the compound first increased and then decreased with
the increase of the dosage of magnetic powder，and the maximum values were 0. 197 T and 7. 3 kJ·m-3，
respectively，when the blending ratio of ferrite magnetic powder/NdFeB magnetic powder was 700/30. |
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