[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(
)
《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]
- 卷:
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第23卷
- 期数:
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2006年3期
- 页码:
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242-246
- 栏目:
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生命科学
- 出版日期:
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2006-07-30
文章信息/Info
- Title:
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Chemical modification and characterization of montmorillonites applied for polypropylene nanocomposites
- 文章编号:
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1000-2618(2006)03-0242-05
- 作者:
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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):
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NI Zhuo1; LIU Jian-hong1; SONG Jun2; ZOU En-guang3; and WANG Bao-hui2
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1)Nornal College Shenzhen University
2)Daqing Petroleum University
3)Daqing Petroleum Chemicals Institute
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- 关键词:
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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:
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polypropylene/montmorillonites; nanocomposites; alky1 ammonium; chemical modification; melting intercalation
- 分类号:
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TQ050
- 文献标志码:
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A
- 摘要:
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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