نتایج جستجو برای: thermogravimetric analysis tga

تعداد نتایج: 2828238  

1997

Resolution, the ability to separate closely occurring events, is an important criterion for most analytical instrument techniques since it effects the ability to obtain accurate, quantitative results. Thermal Analysis techniques are no exception to this basic rule. A good example is thermogravimetric analysis (TGA) which measures weight changes with temperature, providing information about mate...

Journal: :Applied biochemistry and biotechnology 2009
Denise S Ruzene Daniel P Silva António A Vicente José A Teixeira Maria T Pessoa de Amorim Adilson R Gonçalves

Ethanol/water organosolv pulping was used to obtain sugarcane bagasse pulp that was bleached with sodium chlorite. This bleached pulp was used to obtain cellulosic films that were further evaluated by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). A good film formation was observed when temperature of 74 degrees C and ba...

2004
Gang Wu Li Li Bo-Qing Xu

To determine the influence of electrochemical polarization of PtRu/C catalysts on methanol electrooxidation, this work investigated methanol electrooxidation on as received and different electrochemically polarized PtRu/C catalysts. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) were used to characterize the redox state of PtRu/C after different electrochemical polarization. The m...

Journal: :Catalysts 2022

Limestone calcination is an important part of calcium looping (CaL) technology and critical to the design operation optimization fluidized bed reactors. However, obtaining a method measuring fast kinetics in fluidizing environment with isothermal conditions still challenge field looping. We address this work develop new limestone by injecting particles into hot sands microfluidized thermogravim...

2016
T. H. A. Corrêa J. N. F. Holanda

Calcium pyrophosphate (CPP) was prepared by a simple precipitation method using avian eggshell waste as a low-cost alternative calcium precursor source. The synthesized CPP powder was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). The results indicate that pure b-CPP nanocrys...

2017
Abdullah Avşar Yener Gökbulut Burak Ay Selahattin Serin

N,N'-Methylenebisacrylamide (MBAA), which is an important raw material in a widely industrial area, was synthesized using convenient catalysts. The synthesized monomer was fully characterized by the elemental analysis, fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), 1H-NMR, 13C-NMR, GC/MS, and high performance liquid chromatography (HPLC) analysis. Six differe...

2014
Hee Jung Moon Seung Hyun Cho

Liquid crystalline thermosetting epoxy, 4,4'-diglycidyloxy-α-methylstilbene (DOMS) was synthesized and characterized with cross-polarized optical microscopy (POM) and differential scanning calorimetry (DSC). Carbon nanotube (CNT) or graphene reinforced DOMS composites were fabricated by melt blending with sulfanilamide (SAA) as a curing agent. To investigate the thermal degradation behavior, th...

2014
Chern Chiet Eng Nor Azowa Ibrahim Norhazlin Zainuddin Hidayah Ariffin Wan Md Zin Wan Yunus

In this study, the effects of chemical modifications of oil palm mesocarp fiber (OPMF) via bleaching, silane coupling agents, and combinations of the two on the composition and morphology of OPMF were investigated. The chemically modified OPMF was characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The FTIR s...

2014
Evren ALGIN YAPAR Tamer BAYKARA

Article history: Received on: 29/05/2014 Revised on: 12/06/2014 Accepted on: 30/06/2014 Available online: 28/07/2014 In this study effect of gamma irradiation sterilization and storage conditions on thermal properties of phase sensitive granisetron in situ forming implant (ISFI) was investigated. ISFI was prepared by mixing Poly (DLlactide-co-glycolide) (PLGA) with dimethylsulfoxide (DMSO) : pr...

Journal: :iranian chemical communication 2016
shahryar pashaei soleyman hosseinzadeh

this study focuses on achieving high stiffness/strength and good fr characteristic of nylon 66/mca/nc nanocomposites, prepared via melt compounding by twin screw extruder. a synergistic effect of flame retardant systems based on melamine cyanurate and zinc borate on the flammability and mechanical behaviours of crysnanoclay reinforced nylon 66 nanocomposites have been reported. mechanical test ...

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