| Application of Low Zinc Activator SA-1 to Replace Zinc Oxide in SBR Compound |
| Received:October 17, 2021 Revised:October 17, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.03.0201 |
| Key Words: low zinc；activator SA-1；zinc oxide；SBR；hot-air aging resistance；wet skid resistance； rolling resistance |
| Author Name | Affiliation | E-mail | | LIU Xiang | East China University of Science and Technology | | | WANG Hao | East China University of Science and Technology | | | JIANG Haibo* | East China University of Science and Technology | jianghaibo@ecust.edu.cn | | XU Qinajin | Jiangxi Baohong Nano Technology Co.，Ltd， | | | WANG Wei | Shanghai Xiangrui New Material Technology Co. ，Ltd | |
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| Abstract: |
| Low zinc activator SA-1 was used as the vulcanizing activator of styrene-butadiene rubber
（SBR） compound，and the effects of its amount on the physical properties，hot-air aging resistance and
dynamic mechanical properties of SBR vulcanizate were studied and compared with ordinary zinc oxide 997.
The results showed that the dispersibility of activator SA-1 in the SBR matrix was better than that of zinc
oxide 997.When the amount of activator was large（3 ～ 5 phr），the SBR vulcanizate with activator SA-1
had excellent physical properties and hot-air aging resistance.With the decrease of the amount of activator
SA-1 and zinc oxide 997，the physical properties and hot-air aging resistance of the SBR vulcanizate were
decreased. However，compared with zinc oxide 997，activator SA-1 could maintain the physical properties
of the SBR vulcanizate when the amount of activator was small. It was also found that by replacing ordinary
zinc oxide 997 with activator SA-1，the wet skid resistance of the SSBR vulcanizate was improved，while the
rolling resistance did not increase significantly. |
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