| 氢氧化镁/红磷对硅橡胶/黏土纳米复合物阻燃性能的研究 |
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| 引用本文： | 杨玲,王勇毅.氢氧化镁/红磷对硅橡胶/黏土纳米复合物阻燃性能的研究[J].中国安全科学学报,2009,19(11). |
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| 作者姓名： | 杨玲 王勇毅 |
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| 作者单位： | 首都经济贸易大学安全与环境工程学院,北京,100070 |
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| 摘 要： | 选用甲基乙烯基硅橡胶(MVMQ)和十六烷基三甲基溴化铵(C16BrN)改性的蒙脱土(OMMT)纳米复合材料为原料,以氢氧化镁/微胶囊化红磷(MH/MRP)为阻燃剂,以气相法白炭黑为补强剂,用熔融共混法制备了无卤阻燃MVMQ纳米复合材料。笔者采用XRD表征制备的MVMQ/OMMT纳米复合物的结构,用机械性能测试研究气相法白炭黑和OMMT对MVMQ的协效补强作用,通过极限氧指数、UL94 V垂直燃烧法、环境扫描电镜(ESEM)和热重分析(TG)等分析测试手段研究其燃烧性能和热性能,结合材料宏观燃烧性能的改变,推断OMMT和MH/MRP对MVMQ的阻燃作用机理。
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| 关 键 词： | 硅橡胶 粘土 氢氧化镁 阻燃 纳米复合物 |
Influence of Magnesium Hydroxide and Red Phosphorus on Flammability Properties of MVM Q/Clay Nanocomposite |
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| YANG Ling,WANG Yong-yi.Influence of Magnesium Hydroxide and Red Phosphorus on Flammability Properties of MVM Q/Clay Nanocomposite[J].China Safety Science Journal,2009,19(11). |
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| Authors: | YANG Ling WANG Yong-yi |
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| Abstract: | By using melting blend method,flame retardant methyl vinyl silicone rubber(MVMQ)/clay nanocomposites were prepared with magnesium hydroxide(MH)and microencapsulated red phosphorus (RP)as synergistic flame retardant additives,aero silica(SiO_2)as synergistic reinforcement filler.The morphologies of the flame retardant MVMQ/montmorillonite nanocomposites were characterized by environment scanning electron microscopy(ESEM),the interlayer spacing were determined by small-angle X-ray scattering(SAXS).In addition to mechanical measurements,the flame retardance and smoke suppression of silicone rubber/clay nannocomposites were studied by means of LOI,UL 94 vertical burning tests,TG,and ESEM analysis. Combined with the change of combustion performance.the flame retardance mechanism of MH/RWMVMQ/clay nanocomposite was deduced. |
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| Keywords: | Silicone rubber clay magnesium hydroxide flame retardance nanocomposite |
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