| PVAc/OMMT纳米复合物的制备及其在阻燃PP中的应用 |
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| 引用本文： | 李国一,赖学军,向丽,曾幸荣.PVAc/OMMT纳米复合物的制备及其在阻燃PP中的应用[J].塑料科技,2009,37(6). |
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| 作者姓名： | 李国一 赖学军 向丽 曾幸荣 |
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| 作者单位： | 华南理工大学材料科学与工程学院,广东,广州,510640 |
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| 基金项目： | 广东省科技计划重大科技专项项目 |
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| 摘 要： | 通过原位乳液插层法制备了有机蒙脱土(OMMT)含量较高的聚醋酸乙烯酯/有机蒙脱土(PVAc/OMMT)纳米复合物,并将其作为阻燃母料与氢氧化镁(MH)复配,与聚丙烯(PP)熔融共混制备了性能良好的无卤阻燃PP,用X射线衍射(XRD)、锥形量热分析(CONE)等对材料进行了表征。结果表明:当OMMT和MH的用量分别为3%和40%时,阻燃PP的热释放速率峰值(PHRR)相比于基体树脂从929.0kW/m2降低至193.7kW/m2,总释放热(THR)从165.2MJ/m2降低到73.6MJ/m2。
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| 关 键 词： | 聚醋酸乙烯酯 蒙脱土 纳米复合物 阻燃母料 PP 氢氧化镁 |
Preparation of PVAc/OMMT Nanocomposites and Its Application in Flame Retardant PP |
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| Li Guoyi,Lai Xuejun,Xiang Li,Zeng Xingrong.Preparation of PVAc/OMMT Nanocomposites and Its Application in Flame Retardant PP[J].Plastics Science and Technology,2009,37(6). |
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| Authors: | Li Guoyi Lai Xuejun Xiang Li Zeng Xingrong |
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| Abstract: | PVAc/OMMT nanocomposites with high content of OMMT were prepared by in-situ emulsion intercalation polymerization.Non-halogen flame retardant PP with excellent properties was prepared by using PVAc/OMMT nanocomposites as flame retardant master batch and magnesium hydroxide(MH) as flame retardant.The composite material was characterized by X-ray diffraction(XRD) and cone calorimeter(CONE).The results showed that when the mass content of OMMT and MH was 3% and 40% respectively,the peak heat release rate(PHRR) and the total heat release(THR) of the flame retardant PP decreased respectively from 929.0 kW/m2 to 193.7 kW/m2 and from 165.2 MJ/m2 to 73.6 MJ/m2 compared to matrix resins. |
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| Keywords: | Polyvinyl acetate Montmorillonite Nanocomposites Flame retardant master batch PP Magnesium hydroxide |
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