| 可膨胀石墨对木粉—聚丙烯复合材料的阻燃作用 |
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| 引用本文： | 宋永明,贾莹莹,王清文,谢延军,王奉强.可膨胀石墨对木粉—聚丙烯复合材料的阻燃作用[J].东北林业大学学报,2011,39(7):67-70,85. |
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| 作者姓名： | 宋永明 贾莹莹 王清文 谢延军 王奉强 |
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| 作者单位： | 生物质材料科学与技术教育部重点实验室(东北林业大学),哈尔滨,150040 |
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| 基金项目： | 国家高技术发展计划项目，黑龙江省自然科学基金项目 |
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| 摘 要： | 用锥形量热仪(CONE)、热重分析(TGA)、极限氧指数(LOI)等研究手段分析了可膨胀石墨(EC)及其与聚磷酸铵(APP)复配对木粉—聚丙烯复合材料燃烧性能的影响.结果表明:随EG质量分数的增加,复合材料的热释放速率(HRR)、总热释放量(THR)、烟释放速率(RSR)和总烟释放量（TSR）均有显著降低,极限氧指数增...
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| 关 键 词： | 木粉 聚丙烯 阻燃性 可膨胀石墨 聚磷酸铵 |
Flame Retardancy of Wood Flour-Polypropylene Composites Treated with Expandable Graphite |
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| Song Yongming,Jia Yingying,Wang Qingwen,Xie Yanjun,Wang Fengqiang.Flame Retardancy of Wood Flour-Polypropylene Composites Treated with Expandable Graphite[J].Journal of Northeast Forestry University,2011,39(7):67-70,85. |
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| Authors: | Song Yongming Jia Yingying Wang Qingwen Xie Yanjun Wang Fengqiang |
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| Institution: | (Key Laboratory of Bio-based Material Science and Technology(Northeast Forestry University),Ministry of Education,Harbin 150040,P.R.China) |
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| Abstract: | An experiment was conducted to study the effects of the addition of expandable graphite(EG) and/or mixture of EG and ammonium polyphosphate(APP) on the combustion and thermal degradation behaviors of the resulting wood flourk-polypropylene composites by the cone calorimetry(CONE),thermogravimetry(TGA),and limited oxygen index(LOI).Results showed that,with EG content increasing,the heat release rate(HRR),total heat release(THR),release smoke rate(RSR) and total smoke release all decreased remarkably,and the limited oxygen index(LOI) increased,indicating that EG is a qualified flame retardant in flame inhibition and smoke suppression.Compared with APP or EG flame retardant specimens,when the mass ratio of APP and EG was 2∶1 and the total flame retardant content was 15%,the heat and smoke release of the composites decreased,and the char yield,LOI and heat stability of the composites were improved.The incorporation of EG and APP exhibites an excellent synergistic effect in flame inhibition and smoke suppression. |
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| Keywords: | Wood flour Polypropylene Flame retardancy Expandable graphite Ammonium polyphosphate |
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