| Study on Volatility of Antioxidants and Their Influence on Tire Compound Odor |
| Received:October 10, 2018 Revised:October 10, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.10.0744 |
| Key Words: antioxidant；sidewall compound；volatility；odor；qualitative analysis |
| Author Name | Affiliation | E-mail | | GAO Yang* | Sennics Co.，Ltd | Yang.Gao@sennics.com | | ZHANG Jin | Sennics Co.，Ltd | | | LI Fengwei | Sennics Co.，Ltd | | | TANG Zhimin | Sennics Co.，Ltd | |
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| Abstract: |
| The volatilization characteristics of antioxidants under simulated tire production process
conditions were analyzed，and their volatile substances were compared with the volatile organic compounds
（VOCs ） listed by vehicle manufacturers and substances of very high concern （SVHC） by REACH
regulations. The sidewall compounds of tire with different antioxidant combinations were analyzed to
determine the relationship between the type and amount of the volatile substances of sidewall compound
and the placement time，and to determine the main factors affecting the odor of sidewall compound. The
results showed that，the VOCs amount of antioxidant in tire production process was small and positively
correlated with heating temperature. The stability of different antioxidants was different，and the odor
of volatile substances was also different. The accelerator was the main volatile substances producer of
sidewall compound，and the volatilization of sidewall compound decreased significantly after parking at
high temperature（80 ℃） for a certain period of time. The methods to reduce VOCs and odor of tires were to
strengthen raw material control，ensure the continuity and stability of raw material supply，and optimize
formulation and process. |
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