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Title: Synthesis of ordinary composites and nano-composites of Nylon-66 and their physical, mechanical and rheological characterization
Researcher: Aboutaleb Ghadami Jadval Ghadam
Guide(s): Mohammad Idrees
Keywords: Chemical Engineering
Mineral Fillers
Calcium Carbonate Nano-powders
Upload Date: 19-Sep-2013
University: Aligarh Muslim University
Completed Date: 2013
Abstract: Nanotechnology is the fusion of material science, chemistry, physics, and engineering sciences for creation of a suitable method or a process for constructing of useful structures and producing of tools which at least possess a nano-metrical dimension in the size of 1 to 100 nano-meters (i.e. 1 nm to 100 nm; 10-9 m to 10-7 m). Nano-composites are strong replacements for filled polymers (containing filler) or ordinary blend polymers. Precipitated calcium carbonate (PCC) is applied widely as filler in materials like plastics, rubbers, paints, pigments, and ceramics; in fibres such as paper and textiles; and even in medicine and pharmaceutical applications by virtue of its vide range of physical and chemical properties. Use of calcium carbonate nano-particles instead of ordinary particles shows apparent changes in the composite material. Therefore, substantial amount of research is being carried out relating to its synthesis, production and characterization methods. The work embodied in this thesis consists of two parts. First part is related to the synthesis of calcium carbonate nano-particles using reverse microemulsion (w/o) method. Three different sizes of calcium carbonate nano-powders were synthesized successfully by a reverse micro-emulsion method at room temperature with Tween® 80 and Span® 80 as co-surfactants. Synthesized particles were surface modified by stearic acid. The main operating variable, water/surfactant molar ratio (and#969;) in the Span 80-Tween 80/toluene/water reverse micro-emulsion system has been thoroughly investigated. The material was characterized by SEM, TEM, XRD, UV-VIS, FTIR and TGA/DTA techniques. The results from TEM studies established the size of the nano-particles as 39, 33 and 19 nm. The X-ray diffraction (XRD) analysis at room temperature showed single phase formation of calcite structure. All the peaks were very well matched with the calcite structure and no indication of a secondary phase was found.
Pagination: xxix, 281p.
Appears in Departments:Department of Chemical Engineering

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01_title.pdfAttached File152.58 kBAdobe PDFView/Open
02 _certificate.pdf92.61 kBAdobe PDFView/Open
03_dedication.pdf60.43 kBAdobe PDFView/Open
04_acknowledgement.pdf90.81 kBAdobe PDFView/Open
05_abstract.pdf152.44 kBAdobe PDFView/Open
06_table of contents.pdf250.47 kBAdobe PDFView/Open
07_nomenclature.pdf163.96 kBAdobe PDFView/Open
08_glossary.pdf105.16 kBAdobe PDFView/Open
09_chapter 1.pdf657.36 kBAdobe PDFView/Open
10_chapter 2.pdf2.18 MBAdobe PDFView/Open
11_chapter 3.pdf1.02 MBAdobe PDFView/Open
12_chapter 4.pdf402.75 kBAdobe PDFView/Open
13_chapter 5.pdf521.59 kBAdobe PDFView/Open
14_chapter 6.pdf6.5 MBAdobe PDFView/Open
15_chapter 7.pdf169.29 kBAdobe PDFView/Open
16_references.pdf380.36 kBAdobe PDFView/Open
17_publications.pdf152.41 kBAdobe PDFView/Open
18_appendix.pdf389.22 kBAdobe PDFView/Open
19_synopsis.pdf552.43 kBAdobe PDFView/Open

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