scholarly journals Versailles Project on Advanced Materials and Standards interlaboratory study on intensity calibration for x-ray photoelectron spectroscopy instruments using low-density polyethylene

2020 ◽  
Vol 38 (6) ◽  
pp. 063208
Author(s):  
Benjamen P. Reed ◽  
David J. H. Cant ◽  
Steve J. Spencer ◽  
Abraham Jorge Carmona-Carmona ◽  
Adam Bushell ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Interlaboratory Study ◽  
Advanced Materials ◽  
Low Density Polyethylene ◽  
Low Density ◽  
X Ray ◽  
Intensity Calibration

X-ray photoelectron spectroscopy studies of polymer surfaces, 4?further studies of the chromic acid etching of low density polyethylene

1980 ◽  
Vol 2 (3) ◽  
pp. 107-114 ◽  
Author(s):  
D. Briggs ◽  
V. J. I. Zichy ◽  
D. M. Brewis ◽  
J. Comyn ◽  
R. H. Dahm ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Chromic Acid ◽  
Polymer Surfaces ◽  
Low Density Polyethylene ◽  
Acid Etching ◽  
Low Density ◽  
X Ray ◽  
Spectroscopy Studies

Investigation of crystallinity effects on the surface of oxygen plasma treated low density polyethylene using X-ray photoelectron spectroscopy

Polymer ◽  
2003 ◽  
Vol 44 (20) ◽  
pp. 6287-6295 ◽  
Author(s):  
Kwang Soo Kim ◽  
Chang Mo Ryu ◽  
Chan Sup Park ◽  
Gil Soo Sur ◽  
Chan Eon Park
Keyword(s):  
Photoelectron Spectroscopy ◽  
Oxygen Plasma ◽  
Low Density Polyethylene ◽  
Low Density ◽  
X Ray

scholarly journals Oil-based mud waste reclamation and utilisation in low-density polyethylene composites

2020 ◽  
Vol 38 (12) ◽  
pp. 1331-1344
Author(s):  
Shohel Siddique ◽  
Kyari Yates ◽  
Kerr Matthews ◽  
Laszlo J Csetenyi ◽  
James Njuguna
Keyword(s):  
Inductively Coupled Plasma ◽  
Oil And Gas ◽  
Microscopic Analysis ◽  
Optical Emission ◽  
Fluorescence Analysis ◽  
Xrd Analysis ◽  
Low Density Polyethylene ◽  
Emission Spectrometry ◽  
Low Density ◽  
X Ray

Oil-based mud (OBM) waste from the oil and gas exploration industry can be valorised to tailor-made reclaimed clay-reinforced low-density polyethylene (LDPE) nanocomposites. This study aims to fill the information gap in the literature and to provide opportunities to explore the effective recovery and recycling techniques of the resources present in the OBM waste stream. Elemental analysis using inductively coupled plasma–optical emission spectrometry (ICP-OES) and X-ray fluorescence analysis, chemical structural analysis by Fourier transform infrared (FTIR) spectroscopy, and morphological analysis of LDPE/organo-modified montmorillonite (LDPE/MMT) and LDPE/OBM slurry nanocomposites by scanning electron microscopy (SEM) have been conducted. Further analysis including calorimetry, thermogravimetry, spectroscopy, microscopy, energy dispersive X-ray analysis and X-ray diffraction (XRD) was carried out to evaluate the thermo-chemical characteristics of OBM waste and OBM clay-reinforced LDPE nanocomposites, confirming the presence of different clay minerals including inorganic salts in OBM slurry powder. The microscopic analysis revealed that the distance between polymer matrix and OBM slurry filler is less than that of MMT, which suggests better interfacial adhesion of OBM slurry compared with the adhesion between MMT and LDPE matrix. This was also confirmed by XRD analysis, which showed the superior delamination structure OBM slurry compared with the structure of MMT. There is a trend noticeable for both of these fillers that the nanocomposites with higher percentage filler contents (7.5 and 10.0 wt% in this case) were indicated to act as a thermal conductive material. The heat capacity values of nanocomposites decreased about 33% in LDPE with 7.5 wt% MMT and about 17% in LDPE with 10.0 wt% OBM slurry. It was also noted, for both nanocomposites, that the residue remaining after 1000°C increases with the incremental wt% of fillers in the nanocomposites. There is a big difference in residue amount (in %) left after thermogravimetric analysis in the two nanocomposites, indicating that OBM slurry may have significant influence in decomposing LDPE matrix; this might be an interesting area to explore in the future. The results provide insight and opportunity to manufacture waste-derived renewable nanocomposites with enhanced structural and thermal properties.

scholarly journals Three-Phase Characterization of Uniaxially Stretched Linear Low-Density Polyethylene

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Blerina Kolgjini ◽  
Gustaaf Schoukens ◽  
Paul Kiekens
Keyword(s):  
Raman Spectra ◽  
Draw Ratio ◽  
Phase Morphology ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Structure Variation ◽  
X Ray ◽  
Three Phase ◽  
Cold Draw

This study comprises a detailed morphological study of cold-drawn polyethylene monofilaments by Raman spectroscopy, differential scanning calorimetry (DSC) and X-ray measurements. The structure of the three-phase morphology of the linear low-density polyethylene monofilaments was investigated by combining these measurements. It was found that the most important structure variation was found in the intermediate or rigid amorphous phase, whereby the amounts of crystalline and amorphous phases were nearly constant and almost independent of the cold-draw ratio. The intermediate third phase contains gauche and transmolecules, and the amount of transmolecules was increased with the cold-draw ratio and was directly related to this cold-draw ratio. It was found that the two peaks in the Raman spectra, respectively, at 1303 and 1295 cm-1, can be correlated to the amount of gauche and transmolecules in the polyethylene monofilaments. A good and new insight into the three-phase morphology was obtained by combining the DSC and X-ray measurements with the amounts of trans- and gauche molecules from the Raman spectra analysis.

scholarly journals On tuning architectonics of nanoscaled assemblies of Zn-Ga-Al -based oxides obtained from layered double hydroxides precursors

2019 ◽  
Author(s):  
Corina E Ignat ◽  
Gabriela Carja ◽  
Laura E Romila ◽  
Doina Lutic
Keyword(s):  
Electron Microscopy ◽  
Layered Double Hydroxides ◽  
Photoelectron Spectroscopy ◽  
Mixed Oxides ◽  
Thermal Transformation ◽  
Thermal Analyses ◽  
Advanced Materials ◽  
X Ray ◽  
Calcination Temperatures ◽  
Double Hydroxides

Nanoscaled self-assemblies with engineered architectonics are important for obtaining advanced materials with specific applications in nanotechnology. We investigated here the morphology features at the nanoscale of the assemblies of the mixed oxides obtained through the thermal transformation of Zn2+Me3+ (Me=Al/Ga) layered double hydroxides (LDHs), as their “as-synthesized” form or after they were reconstructed in the aqueous solution of Ga2(SO4)3. The characteristics of ZnMe LDHs and the derived assemblies of mixed oxides were assessed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM/EDX), N2 adsorption at −196°C and thermal analyses (TG/DTG/DSC). The results revealed the formation nanoscaled assemblies of ZnO/ZnAl2O4/ZnGa2O4 and ZnO/Ga2O3/ZnGa2O4 starting from ZnMe(Me=Al/Ga) as precursors. Results point out that both the composition of the LDHs and the calcination temperatures can be used as parameters for tuning the nanomorphology features of the studied mixed oxides.

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