| Processing Rheological Properties of Compounds Filled with Different Types of Carbon Black |
| Received:October 22, 2020 Revised:October 22, 2020 |
| DOI：10.12136/j.issn.1000-890X.2021.11.0809 |
| Key Words: words：carbon black；compound；processing property；rheological property；Mooney viscosity；stress relaxation；bound rubber；Payne effect |
| Author Name | Affiliation | Postcode | | WANG Maoying* | EVE Rubber Institute Co.,Ltd | 266045 | | LIU Zhen | EVE Rubber Institute CoLtd
Key Laboratory for Advanced Tire Materials Qingdao | | | JI Xin-yu | EVE Rubber Institute CoLtd | | | MA XIao | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | |
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| Abstract: |
| Abstract：The processing rheological properties of the compounds filled with different types of carbon
black under various testing conditions were studied. The results showed that carbon black N550 had good
mixing performance，while carbon black N134 was more likely to aggregate and had poor dispersion in
the mixing process. The Mooney viscosity and bound rubber content of the compound increased with the
increase of carbon black structure and specific surface area，and they had good correlations with the CDBP
oil absorption value of the carbon black with a correlation coefficient of 0. 95. In addition，the Payne effect
of the compound had a good correlation with the specific surface area and stress relaxation area of the carbon
black，and the correlation factor was 0. 98. The extrusion swelling ratio of the compound was affected by the
content of both bound rubber and trapped rubber. |
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