| PP-g-MAH/OMMT阻燃母料的制备及其在PP中的应用 |
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| 引用本文： | 向丽,赖学军,李国一,曾幸荣.PP-g-MAH/OMMT阻燃母料的制备及其在PP中的应用[J].塑料科技,2009,37(2). |
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| 作者姓名： | 向丽 赖学军 李国一 曾幸荣 |
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| 作者单位： | 华南理工大学材科科学与工程学院,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基金 |
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| 摘 要： | 以聚丙烯接枝马来酸酐(PP-g-MAH)和有机蒙脱土(OMMT)为原料,通过熔融插层制备了PP-g-MAH/OMMT纳米复合阻燃母料,利用X射线衍射(XRD)及热失重分析(TGA)对其进行了表征,并将其与碱式硫酸镁晶须(MOS)复配,制备了阻燃性能及力学性能优良的阻燃PP。结果表明,PP-g-MAH能够插层进入OMMT层间,形成插层型纳米复合物;PP-g-MAH/OMMT中PP-g-MAH的外推起始失重温度由纯PP-g-MAH的269.8℃提高到375.6℃。以PP-g-MAH/OMMT及MOS制备的阻燃PP的热释放速率峰值(PHRR)和平均热释放速率(MHRR)分别为163.7kW/m2和117.9kW/m2,比基体树脂下降了80.3%和70.9%。
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| 关 键 词： | 聚丙烯 马来酸酐 蒙脱土 纳米复合物 阻燃母料 接枝 |
Preparation of Flame Retardant PP-g-MAH/OMMT Nanocomposites Master Batch and Its Application in PP |
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| Xiang Li,Lai Xuejun,Li Guoyi,Zeng Yingrong.Preparation of Flame Retardant PP-g-MAH/OMMT Nanocomposites Master Batch and Its Application in PP[J].Plastics Science and Technology,2009,37(2). |
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| Authors: | Xiang Li Lai Xuejun Li Guoyi Zeng Yingrong |
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| Abstract: | The flame retardant PP-g-MAH/OMMT nanocomposite master batch was prepared with maleic anhydride grafted polypropylene(PP-g-MAH) and organophilic montmorillonite(OMMT) by melt intercalation.The master batch was characterized by means of XRD and TGA.Flame retardant PP with high flame retardancy and mechanical properties was prepared with PP-g-MAH/OMMT master batch and magnesium sulfate whisker(MOS).The results showed that PP-g-MAH can intercalate into the interlayer of OMMT to form the intercalation nanocomposites.TGA results showed that the initial decomposition temperature of PP-g-MAH in master batch increased to 375.6℃ from 269.8℃ of pure PP-g-MAH.The peak heat release rate(PHRR) and mean heat release rate(MHRR) of flame retardant PP was 163.7 kW/m2 and 117.9 kW/m2, which was decreased by 80.3% and 70.9% than that of matrix resin respectively. |
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| Keywords: | Polypropylene Maleic anhydride Montmorillonite Nanocomposites Flame retardant master batch Graft |
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