• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Poly(methyl methacrylate)/montmorillonite nanocomposites prepared with a novel reactive phosphorus-nitrogen-containing monomer of N-(2-(5,5-dimethyl-1,3, 2-dioxaphosphinyl-2-ylamino)ethyl)- acrylamide and its thermal and flame retardant properties
【24h】

Poly(methyl methacrylate)/montmorillonite nanocomposites prepared with a novel reactive phosphorus-nitrogen-containing monomer of N-(2-(5,5-dimethyl-1,3, 2-dioxaphosphinyl-2-ylamino)ethyl)- acrylamide and its thermal and flame retardant properties

机译：由N-（2-（5,5-二甲基-1,3,2-二氧杂膦基-2-基氨基）乙基）-丙烯酰胺的新型含磷氮反应性单体制备的聚（甲基丙烯酸甲酯）/蒙脱土纳米复合材料热和阻燃性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel reactive phosphorus-nitrogen-containing monomer, N-(2-(5,5-dimethyl-1,3,2-dioxaphosphinyl-2-ylamino)ethyl)-acrylamide (DPEAA), was synthesize and characterized. Flame retardant poly(methyl methacrylate)/organic-modified montmorillonite (PMMA-DPEAA/OMMT) nanocomposites were prepared by in situ polymerization by incorporating methyl methacrylate, DPEAA, and OMMT. The results from X-ray diffraction and transmission electron microscopy (TEM) showed that exfoliated PMMA-DPEAA/OMMT nanocomposites were formed. Thermal stability and flammability properties were investigated by thermogravimetric analysis, cone calorimeter, and limiting oxygen index (LOI) tests. The synergistic effect of DPEAA and montmorillonite improved thermal stability and reduced significantly the flammability [including peak heat release rates (PHRR), total heat release, average mass loss rate, etc.]. The PHRR of PMMA-DPEAA/OMMT was reduced by about 40% compared with pure PMMA. The LOI value of PMMA-DPEAA/OMMT reached 27.3%. The morphology and composition of residues generated after cone calorimeter tests were investigated by scanning electronic microscopy (SEM), TEM, and energy dispersive X-ray (EDX). The SEM and TEM images showed that a compact, dense, and uniform intumescent char was formed for PMMA-DPEAA/OMMT nanocomposites after combustion. The results of EDX confirmed that the carbon content of the char for PMMA-DPEAA/OMMT nanocomposites increased obviously by the synergistic effect of DPEAA and montmorillonite.
机译：合成并表征了一种新型的含磷氮反应性单体N-（2-（5,5-二甲基-1,3,2-二氧杂膦基-2-基氨基）乙基）丙烯酰胺（DPEAA）。阻燃剂聚甲基丙烯酸甲酯/有机改性蒙脱土（PMMA-DPEAA / OMMT）纳米复合材料是通过将甲基丙烯酸甲酯，DPEAA和OMMT掺入原位聚合制备的。 X射线衍射和透射电子显微镜（TEM）的结果表明，形成了剥离的PMMA-DPEAA / OMMT纳米复合材料。通过热重分析，锥形量热仪和极限氧指数（LOI）测试研究了热稳定性和可燃性。 DPEAA和蒙脱土的协同作用改善了热稳定性，并显着降低了可燃性（包括峰值放热率（PHRR），总放热率，平均质量损失率等）。与纯PMMA相比，PMMA-DPEAA / OMMT的PHRR降低了约40％。 PMMA-DPEAA / OMMT的LOI值达到27.3％。通过扫描电子显微镜（SEM），TEM和能量色散X射线（EDX）研究了锥形量热仪测试后产生的残留物的形态和组成。 SEM和TEM图像显示，燃烧后，PMMA-DPEAA / OMMT纳米复合材料形成了致密，致密，均匀的膨胀炭。 EDX的结果证实，通过DPEAA和蒙脱土的协同作用，PMMA-DPEAA / OMMT纳米复合材料炭的碳含量明显增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号