| APP对木粉-HDPE复合材料阻燃和力学性能的影响 |
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| 引用本文： | 邵博,张志军,王清文,宋永明.APP对木粉-HDPE复合材料阻燃和力学性能的影响[J].高分子材料科学与工程,2008,24(4):93-97. |
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| 作者姓名： | 邵博 张志军 王清文 宋永明 |
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| 作者单位： | 1. 东北林业大学理学院
2. 东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江,哈尔滨,150040 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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教育部全国优秀博士学位论文作者专项基金
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国家农业科技成果转化基金 |
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| 摘 要： | 以聚磷酸铵(APP)对木粉-HDPE复合材料(WF-HDPE)进行阻燃处理,用锥形量热仪系统评价复合材料的阻燃性能,并进行等温燃烧反应动力学分析,用万能力学试验机进行静态力学试验。结果表明,在35 kW/m2热辐射流量下,APP添加量达到15%时,WF-HDPE燃烧热释放速率(RHR)峰值和总热释放量(THR)均降低约50%、成炭率提高150%,表现出显著的阻燃作用;可用动力学模型ln(1-α)=-kt+C描述WF-HDPE的等温燃烧反应,APP的加入使反应速率常数k降低、半衰期延长。APP对WF-HDPE的冲击性能有显著的不利影响,但能改善刚性,对弯曲强度和拉伸强度影响不大。综合阻燃性能与力学实验结果,APP的适宜添加量为15%左右。
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| 关 键 词： | 木粉-高密度聚乙烯复合材料 锥形量热仪 阻燃性能 力学性能 聚磷酸铵 |
| 文章编号： | 1000-7555(2008)04-0093-04 |
| 修稿时间： | 2006年11月1日 |
Effects of APP on the Fire-Retardant and Mechanical Properties of Wood-Flour-HDPE Composite |
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| SHAO Bo,ZHANG Zhi-jun,WANG Qing-wen,SONG Yong-ming.Effects of APP on the Fire-Retardant and Mechanical Properties of Wood-Flour-HDPE Composite[J].Polymer Materials Science & Engineering,2008,24(4):93-97. |
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| Authors: | SHAO Bo ZHANG Zhi-jun WANG Qing-wen SONG Yong-ming |
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| Affiliation: | 1.School of Science;2.MOE Key Laboratory of Bio-Based Material Science and Technology,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | Ammonium polyphosphate(APP) was applied to wood-flour-HDPE composite(WF-HDPE) as a fire retardant.The burning behavior and the isothermal combustion kinetics of the composite were studied with a cone calorimeter,and the mechanical properties of the composites were tested statically.The considerable fire-retardancy was observed with the addition of APP to WF-HDPE.The combustion of WF-HDPE composites(with or without APP as fire retardant) can be described as the chemical kinetic equation of first order reaction ln(1-α)=-kt+C.The value of k is decreased and t1/2 increased by the addition of APP.The optimal loading of APP as the fire retardant of WF-HDPE composite is about 15%. |
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| Keywords: | wood-flour-HDPE composites cone calorimeter fire retardancy mechanical property APP |
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