| Effect of Different Flame Retardants on Flame Retardant Properties of SBR/BR Blends |
| Received:May 19, 2024 Revised:May 20, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.05.0335 |
| Key Words: SBR；BR；blend；flame retardant；flame retardant property；limiting oxygen index |
| Author Name | Affiliation | E-mail | | XIU Zhilun | Qingdao University of Science and Technology | 4021020052@mails.qust.edu.cn | | GAO Zhenliang | Qingdao University of Science and Technology | | | ZHANG Baogang | Qingdao University of Science and Technology | | | LIU Li* | Qingdao University of Science and Technology | qdliuli@163.com |
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| Abstract: |
| A novel organophosphorus flame retardant MOPO was synthesized using 4，4′-methylenebis （2-chloroaniline） （MOCA） and 9，10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide（DOPO），and the influence of different flame retardants on the flame retardant properties of styrene-butadiene rubber （SBR）/cis-polybutadiene rubber（BR） blends was investigated.The results showed that，the vulcanization rate of the blend with flame retardant MOPO and ammonium polyphosphate slowed down.The limiting oxygen index of the blends with flame retardant decabromodiphenyl ethane and magnesium hydroxide significantly increased，and the flame retardant properties was improved.The flame retardant effect of flame retardant decabromodiphenyl ethane，MOPO，ammonium polyphosphate decreased in order.The thermal decomposition of flame retardant MOPO generated phosphorus oxygen free radicals，which reacted with combustible molecules to form stable acidic compounds containing phosphorus.These compounds had the ability to absorb heat and could slow down the spread of the flames，flame retardant MOPO was mainly based solid-phase flame retardancy. |
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