[1]倪卓,刘剑洪,宋军,等.用于聚丙烯插层的蒙脱土化学修饰与表征[J].深圳大学学报理工版,2006,23(3):242-246.
 NI Zhuo,LIU Jian-hong,SONG Jun,et al.Chemical modification and characterization of montmorillonites applied for polypropylene nanocomposites[J].Journal of Shenzhen University Science and Engineering,2006,23(3):242-246.
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用于聚丙烯插层的蒙脱土化学修饰与表征()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第23卷
期数:
2006年3期
页码:
242-246
栏目:
生命科学
出版日期:
2006-07-30

文章信息/Info

Title:
Chemical modification and characterization of montmorillonites applied for polypropylene nanocomposites
文章编号:
1000-2618(2006)03-0242-05
作者:
倪卓1刘剑洪1宋军2邹恩广3王宝辉2
1)深圳大学师范学院,深圳518060;
2)大庆石油学院,大庆163316;
3)大庆石化研究院,大庆163320
Author(s):
NI Zhuo1LIU Jian-hong1SONG Jun2 ZOU En-guang3and WANG Bao-hui2
1)Nornal College Shenzhen University
2)Daqing Petroleum University
3)Daqing Petroleum Chemicals Institute
关键词:
聚丙烯/蒙脱土纳米复合材料长链季铵盐化学修饰熔融插层
Keywords:
polypropylene/montmorillonites nanocompositesalky1 ammonium chemical modification melting intercalation
分类号:
TQ050
文献标志码:
A
摘要:
采用长链季铵盐阳离子表面活性剂对钠基蒙脱土进行化学修饰,制得有机蒙脱土,采用红外(FT-IR)、X射线衍射(XRD)和热重分析(TGA)等手段,对有机化蒙脱土的结构进行表征.实验结果表明,长链季铵盐通过离子交换反应可有效修饰蒙脱土,有机阳离子置换掉蒙脱土层间的金属阳离子.蒙脱土经插层处理后,其晶层间距都比原始蒙脱土的层间距有所增加.由于有机阳离子体积较大,从而将蒙脱土片层撑开,层间距增大,减弱了蒙脱土片层间的静电吸引力和化学键合力,改善层间微环境,使粘土内外表面由亲水性转变为疏水性,降低硅酸盐表面能,有利于聚合物插入层间.
Abstract:
Polypropylene(PP)/montmorillonites(MMT)nanocomposites are applied in industrial production due to its improved properties. Chemical modification of MMT is a key technique in the manufacture of polymer nanocomposites. This investigation concentrated on the preparation of organic montmorillonites through a way of treatment of Na-montmorillonites using several long-chain alky1 quaternary ammonium ions. The result MMT were characterized by FT-IR 、XRD and TGA, etc. The results indicated that alkyl ammonium ions had been intercalated into the layered silicate of org-MMT. The layer spacing of MMT modified by hexadecy1 trimethy1 ammonium(HTAB) was increased most effectively. The structural changes in MMT layers formed a nanometer yardstick providing sufficient intercalation, resulting in good mechanical properties and improved crystallization behavior.
更新日期/Last Update: 2015-06-26