کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
608915 880611 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and physical properties of new surfactants based on ionic liquids: Improvement of thermal stability and mechanical behaviour of high density polyethylene nanocomposites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Synthesis and physical properties of new surfactants based on ionic liquids: Improvement of thermal stability and mechanical behaviour of high density polyethylene nanocomposites
چکیده انگلیسی

Ionic liquids based on alkyltriphenyl phosphonium and dialkyl imidazolium cations with long alkyl chains have been synthesized and used as new surfactants for cationic exchange of layered silicates. The influence of the alkyl chain length and the chemical nature of the conteranion or of the cation on the thermal stability of these new intercalating agents and on imidazolium- (MMT-I) or phosphonium- (MMT-P) modified montmorillonites have been analyzed by thermogravimetric analysis (TGA). Thermoplastic nanocomposites based on these modified montmorillonites with a very low amount of nanofillers (1 wt.%) have been processed by melt mixing using a twin screw extruder. The distribution of the clay layers in a high density polyethylene (HDPE) matrix was characterized and finally the mechanical and thermal properties of the corresponding nanocomposites were determined.

TEM micrographs of (a) PE/MMT-P I−, (b) PE/MMT-P Br−, (c) PE/MMT-P PF6-.Figure optionsDownload high-quality image (81 K)Download as PowerPoint slideResearch highlights
► Synthesis of new surfactants for the olefinic matrices.
► Preparation of thermostable ionic liquid (IL) modified montmorillonites.
► Improvement of thermal and mechanical properties of nanocomposites.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 354, Issue 2, 15 February 2011, Pages 555–562
نویسندگان
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