| 不同阻燃剂对天然橡胶胶料阻燃性能和物理性能的影响 |
| Effect of Different Flame Retardants on Flame Retardancy and Physical Properties of NR Compounds |
| 投稿时间：2025-05-13 修订日期：2025-05-13 |
| DOI：10.12136/j.issn.1000-890X.2025.12.0923 |
| 中文关键词: 天然橡胶 阻燃剂 阻燃性能 拉伸性能 耐磨性能 |
| 英文关键词: NR flame retardant flame retardancy tensile property wear resistance |
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| 中文摘要: |
| 研究具有不同阻燃机理的3种类型阻燃剂，即气相阻燃剂三聚氰胺（Mel）、凝聚相主导的阻燃剂次磷酸铝（AP）和含磷膨胀型阻燃剂（IFR）对天然橡胶（NR）胶料阻燃性能和物理性能的影响。结果表明：当阻燃剂用量相同时，Mel胶料的阻燃性能最差，AP胶料的阻燃性能居中，IFR胶料的阻燃性能最好；添加50份IFR的胶料的阻燃等级达到V-0，极限氧指数达到27%，其具有优异的阻燃性能；在满足高阻燃性能（V-0等级）前提下，添加50份IFR的胶料的拉伸性能和耐磨性能较好。总的来看，添加膨胀型阻燃剂IFR的NR胶料在阻燃性能与物理性能间具有最优平衡。 |
| 英文摘要: |
| Effects of three kinds of flame retardants with different flame retardant mechanisms including gas phase flame retardant melamine（Mel），condensed phase dominated flame retardant aluminum hypophosphite（AP） and phosphorus-containing intumescent flame retardant（IFR） on the flame retardancy and physical properties of natural rubber（NR） were investigated.The results demonstrated that，at the same dosage of flame retardant，the compound filled with Mel exhibited the worst flame retardancy，the compound filled with AP showed intermediate flame retardancy，and the compound filled with IFR achieved the most optimal flame retardancy.Specifically，the compound filled with 50 phr IFR attained the V-0 flame-retardant rating and a limiting oxygen index（LOI） of 27%，indicating superior flame retardancy.Furthermore，under the high flame retardancy（V-0 rating），the compound filled with 50 phr IFR simultaneously maintained favourable tensile properties and wear resistance.Overall，the NR compound filled with IFR delivered the most balanced performance between flame retardancy and physical properties. |
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