| Study on Application of Waste Tire Pyrolysis Carbon Black/Carbon Black N660 Blending in BIIR Inner Liner Compound of Tire |
| Received:August 03, 2021 Revised:August 03, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.04.0283 |
| Key Words: waste tire pyrolysis carbon black；carbon black N660；BIIR；tire inner liner；air tightness |
| Author Name | Affiliation | E-mail | | PEI Baomin* | Doublestar Group Co., Ltd. | 18765999670@163.com | | WANG Huixin | Doublestar Group Co.，Ltd | | | CHEN Xiaoyan | Doublestar Group Co.，Ltd | | | ZHOU Shifeng | Doublestar Group Co.，Ltd | | | MA Licheng | Doublestar Group Co.，Ltd | | | GUAN Qingyu | Doublestar Group Co.，Ltd | |
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| Abstract: |
| The effect of 15 phr waste tire pyrolysis carbon black（CBp）/45 phr carbon black N660
blending on the properties of the bromobutyl rubber（BIIR） inner liner compound of tire was studied and
compared with 60 phr carbon black N660. The results showed that，compared with carbon black N660，CBp
had larger ash content and larger sieve residue content and slightly smaller DBP absorption value. Compared
with the BIIR compound filled with 60 phr carbon black N660，the vulcanization characteristics of the BIIR
compound filled with 15 phr CBp/45 phr carbon black N660 blend had little change，the elongation at break
decreased，the tensile stress at 300% elongation and tensile strength increased，the hot air aging resistance had
no obvious change，and the air tightness was equivalent. Therefore，with 15 phr CBp replacing 15 phr carbon
black N660 in the BIIR inner liner compound，the production cost was effectively reduced under the premise
of ensuring performance. |
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