K. Shree Meenakshi

Development and characterization of new phosphorus based flame retardant tetraglycidyl epoxy nanocomposites for aerospace application

A study was made in the present investigation on the development and characterization of triphenyl phosphine oxide based phosphorus tetraglycidyl epoxy nanocomposites denoted as ‘C’ and to find out its suitability for use in high performance applications. The synthesized resin was characterized by Fourier transform infrared spectra (FT–IR) and 1H, 13C nuclear magnetic resonance (NMR) spectra. Nanoclay and POSS-amine nano-reinforcements denoted as N1 and N2 were incorporated into the synthesized epoxy resin. Curing was done with diaminodiphenylmethane (DDM) and bis(3-aminophenyl) phenylphosphine oxide (BAPPO) curing agents denoted as X and Y, respectively. Mechanical, thermal, flame retardant, water absorption behaviour and electrical properties of the epoxy nanocomposites were studied and the results are discussed.

Development and study of the thermal and electrical behaviour of TGDDS epoxy nanocomposites for high-performance applications

The present work focuses on a comparative study of the thermal and electrical behaviour of N,N′-tetraglycidyl diaminodiphenylsulphone (TGDDS) denoted as ‘B’ to find the suitability for its use in high-performance applications. The synthesis of the tetraglycidyl epoxy was done and they were characterized by FT-IR (Fourier transform infrared spectra) and nuclear magnetic resonance spectra (1H-NMR and 13C-NMR). Nanoclay and POSS-amine nanoreinforcements denoted as N1 and N2 were incorporated into the synthesized epoxy resins. Curing was done using diaminodiphenylmethane (DDM) and bis(3-aminophenyl)phenylphosphine oxide (BAPPO) curing agents denoted as X and Y, respectively. The thermal behaviour of the tetraglycidyl resins and their corresponding nanocomposites was studied by thermogravimetric analysis (TGA). The electrical behaviour, namely dielectric strength, comparative tracking index (CTI), volume resistivity, surface resistivity and arc resistance of the nanocomposites were also studied and the interesting results obtained are discussed.

Preparation and characterization of titanium oxide-water based nanofluids by one step method for heat transfer applications

The aim of the current research is to manufacture titanium - water based nanofluids and to study its various properties. The titanium nanofluids were synthesized using water as the base fluid for potential use as a coolent for heat transfer applications. Three different concentrations 1%, 3% and 5% of the titanium nanofluids are developed. The characterization of the synthesized nanofluids is done by fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), energy dispersive spectroscopy (EDS) and x-ray diffraction (XRD) techniques. The thermo-physical properties (thermal conductivity and viscosity) measurements were carried out and the interesting results obtained are discussed.

Development of Siloxane Based Tetraglycidyl Epoxy Nanocomposites for High Performance Applications—Study of the Thermo Mechanical, Electrical, XRD, EDS and Physical Properties

A study was made in the present investigation on siloxane containing tetraglycidyl epoxy nanocomposites to find its suitability for use in high performance applications. The synthesis and characterization of the siloxane tetraglycidyl epoxy resin denoted as ‘E’ was done as reported in our previous study. Nanoclay and POSS-amine nano-reinforcements denoted as N1 and N2 were incorporated into the synthesized epoxy resin. Curing was done with diaminodiphenylmethane (DDM) and bis(3-aminophenyl) phenyl phosphine oxide (BAPPO) curing agents denoted as X and Y respectively. The mechanical, thermal, flame retardant and water absorption behavior of the epoxy nanocomposites were studied in our previous research paper. In our current research, we continue this study and analyze the thermo-mechanical, electrical, X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and physical properties (viscosity, epoxy equivalent weight (EEW) and gel permeation chromatography (GPC) studies).

Development of TGDDM Based Layered Silicate Nanocomposites for High Performance Applications

This chapter presents an investigation on TGDDM containing tetraglycidyl epoxy nanocomposites to find its suitability for use in high-performance applications. The synthesis and characterization of the TGDDM epoxy resin denoted as “A” were done. Nanoclay-based layered silicate nanoreinforcement denoted as “N1” was incorporated into the synthesized epoxy resin. Curing was done with diaminodiphenylmethane (DDM) and bis(3-aminophenyl)phenylphosphine oxide (BAPPO) curing agents denoted as X and Y, respectively. The mechanical, thermomechanical, flame retardancy, water absorption, and morphological studies were carried out, and the results are presented.