| 不同阻燃剂对丁苯橡胶/顺丁橡胶并用胶阻燃性能的影响 |
| Effect of Different Flame Retardants on Flame Retardant Properties of SBR/BR Blends |
| 投稿时间：2024-05-19 修订日期：2024-05-20 |
| DOI：10.12136/j.issn.1000-890X.2026.05.0335 |
| 中文关键词: 丁苯橡胶 顺丁橡胶 并用胶 阻燃剂 阻燃性能 极限氧指数 |
| 英文关键词: SBR BR blend flame retardant flame retardant property limiting oxygen index |
| 基金项目:国家自然科学基金资助项目(51972185) |
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| 中文摘要: |
| 采用4，4′-亚甲基二（2-氯苯胺）（MOCA）与9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO）合成新型有机磷系阻燃剂MOPO，研究不同阻燃剂对丁苯橡胶（SBR）/顺丁橡胶（BR）并用胶阻燃性能的影响。结果表明：加入阻燃剂MOPO和聚磷酸铵的并用胶的硫化速率减慢；加入阻燃剂十溴二苯乙烷和氢氧化镁并用胶的极限氧指数明显增大，阻燃性能提高；阻燃剂十溴二苯乙烷、MOPO、聚磷酸铵的阻燃效果依次减弱；阻燃剂MOPO热解产生的磷氧自由基会与可燃物分子发生反应并形成稳定的含磷的酸性化合物，该类化合物具有吸热能力，可减缓火焰蔓延，阻燃剂MOPO以固相阻燃为主。 |
| 英文摘要: |
| 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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