In this work, we develop a system to recycle post-consumer PLA into either acrylic acid (AA) or lactide (LAC), depending on the presence/absence of an acidic cocatalyst and the applied reaction...

2000年1月1日 · An X-ray diffraction (XRD) index was developed which related the intensity of two talc peaks to its particle morphology as shown by Scanning Electron Microscopy (SEM). The talc XRD morphology...

In the presented work the influence of different 3MgO·4SiO2·H2O (talc) contents in polypropylene samples on the structure, hardness, elasticity, and friction of the surface layer was...

2019年5月1日 · All of the characterization methods showed that, with synthesis duration, talc progressively structured to a local (FTIR, EXAFS) or an extended (crystalline) order (XRD). Talc growth unit is constituted by 2–3 Ni-octahedra 3.07 Å apart, and 3–4 Si-tetrahedra distributed on the top and bottom of the octahedral “sheet” and distanced from ...

2020年4月26日 · A talc XRD morphology index , calculated from the XRD data, numerically relates the morphology of the talc to its XRD peak intensities. This index (M) allows us to assign upper and lower limits to the talc texture: they can range …

Welcome to the RRUFF Project website containing an integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals. Enter search criteria or leave all the fields blank to retrieve all available data.

2023年5月17日 · To analyze talc crystalline morphology, a morphological index (M) proposed by Holland and Murtagh was calculated from XRD data. To determine if a talc sample is macro or microcrystalline, they proposed an expression in terms of the intensity of (004) and (020) corresponding to d values of 4.69 and 4.61 Å, respectively, as follows:

An X-ray diffraction (XRD) index was developed which related the intensity of two talc peaks to its particle morphology as shown by Scanning Electron Microscopy (SEM). The talc XRD morphology index (M) ranged from 0.38 to 0.97.

1997年7月1日 · Talc from Puebla de Lillo, Spain has been studied by XRD. The experimental X-ray powder diffraction patterns have been compared with simulated diffractograms from structure refinement data for the triclinic and monoclinic talcs.

2014年4月21日 · X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetry-differential scanning calorimetry (TG-DSC) were used to study the thermal decomposition mechanism. The Coats-Redfern decomposition model was used to determine the decomposition mechanism of talc samples.