[1]蒋文俊,许建,赵春宝,等.改性层状双氢氧化镁铝的制备及在PA6中的阻燃应用[J].南京理工大学学报(自然科学版),2009,(02):272-276.
　JIANG Wen-jun,XU Jian,ZHAO Chun-bao,et al.Preparation of Modified Mg-Al Layered Double Hydroxide and Its Flame-retardant Application in PA6 Composites[J].Journal of Nanjing University of Science and Technology,2009,(02):272-276.
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改性层状双氢氧化镁铝的制备及在PA6中的阻燃应用
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2009年02期
页码:
272-276
栏目:
出版日期:
2009-04-30

文章信息/Info

Title:
Preparation of Modified Mg-Al Layered Double Hydroxide and Its Flame-retardant Application in PA6 Composites
作者:
蒋文俊;许建;赵春宝;杨绪杰;浦龙娟;熊丽媛;
南京理工大学化工学院, 江苏南京210094
Author(s):
JIANG Wen-jun; XU Jian; ZHAO Chun-bao; YANG Xu-jie; PU Long-juan; XIONG Li-yuan
School of Chemical Engineering,NUST,Nanjing 210094,China
关键词:
改性层状双氢氧化镁铝;  复合材料;  协同阻燃;  制备;  表征
Keywords:
modified Mg-Al layered double hydroxide;  composites;  flame retardant synergism;  preparation;  characterization
分类号:
TB332
摘要:
以九水合硝酸铝、六水合硝酸镁、硬脂酸钠以及氢氧化钠为原料,采用共沉淀法制备了改性层状双氢氧化镁铝(LDH),通过FTIR、XRD及TG-DTA对其进行表征。结果表明:当硬脂酸钠与九水合硝酸铝的摩尔比为1∶1时,C18H35O2-插层基本达到饱和,层间距由0.80 nm增加到2.98 nm。TG-DTA结果显示,由硬脂酸根插层的改性层状双氢氧化镁铝热稳定性好。以熔融挤出法制备PA6/LDH、PA6/MRP(微胶囊红磷)以及PA6/MRP/LDH复合材料,用LOI与UL-94垂直燃烧测定其阻燃性能,发现LDH
Abstract:
The modified Mg-Al layered double hydroxide(LDH) is synthesized by coprecipitation method using Al(NO3)3·9H2O,Mg(NO3)2·6H2O,C18H35O2Na and NaOH as raw materials.The structure and the thermal stability of products are characterized by FTIR,XRD and TG-DTA.The results show that when the mole ratio between C18H35O2Na and Al(NO3)3·9H2O is 1,the quantity of C18H35O-2 in the interlayer of LDH almost gets the maximum.Compared with the LDH-NO-3,the interlayer spacing of LDH is increased from 0.80 nm to 2.98 nm.The LDH modified with C18H35O2Na has a good thermal stability.PA6/LDH,PA6/MRP and PA6/MRP/LDH composites are prepared by melt extrusion.The composites are characterized by LOI and UL-94 vertical burning.The results show that there is a good flame retardant synergism between LDH and MRP in PA6 composites.When 8 phr LDH and 12 phr microencapsulated red phosphorus(MRP) are added,the oxygen index of the composites is 28.5% and the vertical firing rankes V-0.

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备注/Memo

备注/Memo:
基金项目: 江苏省高技术项目( BG2007047); 国家自然科学基金( 50772048)
作者简介: 蒋文俊( 1980- ), 男, 博士生, 主要研究方向: 无卤阻燃剂的制备及在高分子材料中的应用, E-m a il:jw j80927@ tom. com; 通讯作者: 杨绪杰( 1946- ), 男, 教授, 博士生导师, 主要研究方向: 高分子基复合材料的制备及应用, E-m a il: yangx@ m a il.n just. edu. cn。
更新日期/Last Update: 2012-11-19