Effect of Type and Amount of Carbon Black on Properties of Magnetic NBR Compounds |
Received:September 04, 2021 Revised:September 04, 2021 |
DOI:10.12136/j.issn.1000-890X.2023.02.0111 |
Key Words: carbon black;NBR;magnetic rubber;physical property;magnetic property |
Author Name | Affiliation | E-mail | Lianglin | 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 | nxding1717@163.com | LIU Guangye | Qingdao University of Science and Technology | |
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Abstract: |
The effects of the type and amount of carbon black on the properties of magnetic nitrile rubber
(NBR) compounds were studied. The results showed that,with 30 phr of carbon black(N220,N330,N550,
N660,N774 and N990),the magnetic NBR compound filled with carbon black N660 had the weakest Payne
effect(indicating the most stable filler network structure),the magnetic NBR vulcanizate filled with carbon
black N220 had the best physical properties,and the magnetic NBR vulcanizate filled with carbon black N550
had the best magnetic properties [remanence(Br) was 0. 220 T,coercivity(Hcb) was 165 kA·m-1,and the
maximum magnetic energy product(BH)max was 9. 3 kJ·m-3]. Adding different amounts of carbon black
N550 to the magnetic NBR compounds,the magnetic NBR compound filled with 20 phr of carbon black N550
had the best dimensional stability,the tensile strength of the magnetic NBR vulcanizate filled with 30 phr of
carbon black N550 was the highest(9. 1 MPa),and the magnetic NBR vulcanizate filled with 10 phr of carbon
black N550 had the best magnetic properties[Br0. 228 T,Hcb 171 kA·m-1,and(BH)max 9. 9 kJ·m-3]. |
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