Preparation and characterization of flame-retardant melamine cyanurate/polyamide 6 nanocomposites by in situ polymerization
Preparation and characterization of flame-retardant melamine cyanurate/polyamide 6 nanocomposites by in situ polymerization
复制标题
DOI：
10.1002/app.30022
复制
发表时间：
2009-08
影响因子：
3
通讯作者：
Zhixia Wu;Weixiu Xu;Yaochi Liu;Jinfeng Xia;Q. Wu;Weijian Xu
中科院分区：
文献类型：
--
作者：
Zhixia Wu;Weixiu Xu;Yaochi Liu;Jinfeng Xia;Q. Wu;Weijian Xu
本文重点介绍了一种改进的方法，即在三聚氰胺衍生物存在下，改进已内酰胺原位聚合制备三聚氰胺氰尿酸酯/聚酰胺6(MCA/PA6)纳米阻燃复合材料。用傅立叶变换红外光谱和X射线衍射仪对合成的阻燃复合材料的化学结构进行了表征。用透射电子显微镜、力学性能测试仪、差示扫描量热仪和热重分析等手段研究了复合材料的形貌、力学性能和热性能。通过透射电子显微镜照片可以发现，原位生成的直径小于50 nm的MCA纳米粒子是纳米级的，高度均匀地分散在PA6基质中。这些纳米复合材料具有良好的力学性能，即使在相对较低的MCA负载水平下，也可以在1.6 mm厚度下达到UL-94 V-0级。©2009 Wiley期刊，Inc.《应用理工学院》，2009
This article focuses on an improved method, i.e., improved in situ polymerization of e-caprolactam in the presence of melamine derivatives to prepare flame-retardant melamine cyanurate/polyamide 6 (MCA/PA6) nanocomposites. The chemical structures of these synthetic flame retardant composites are characterized by Fourier-transform infrared spectroscopy and X-ray diffraction. Morphologies, mechanical properties, and thermal properties also are investigated by the use of transmission electron microscopy, mechanical testing apparatus, differential scanning calorimetry, and thermogravimetric analysis, respectively. Through transmission electron microscopy photographs, it can be found that the in situ-formed MCA nanoparticles with diametric size of less than 50 nm are nanoscaled, highly uniformly dispersed in the PA6 matrix. These nanocomposites, which have good mechanical properties, can reach UL-94 V-0 rating at 1.6-mm thickness even at a relatively low MCA loading level. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009