Surface Characterization of the Precipitated Calcium Carbonate PDF Download

Author: T. Ahsan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Alberta Cohen
Publisher: Nova Science Publishers
ISBN: 9781634835404
Category : Calcium carbonate
Languages : en
Pages : 0

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Calcium carbonate is one of the most abundant materials present in nature. In this book, the characterization of surface properties of calcium carbonate are reviewed, particularly, the Washburn method is described in detail. The effect of natural and synthetic macromolecules on the structure of calcium carbonate is described as well. The third chapter highlights the general criteria for the application of vaterite (an artificially prepared compound, which has the least thermodynamic stability among the three crystalline polymorphs of calcium carbonate) for biomedical applications and the science of its structural modification towards achieving tunable solubility. The final chapter examines the porous calcium carbonate cores as templates for preparation of peroral proteins delivery systems and the influence of ionic composition of intestinal medium on the structure and morphology of carbonate cores and release profiles of model and therapeutic proteins.

Author: George R. Hood
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This book contains seven selected chapters on the chemistry of calcium carbonate. Chapter One is an overview of the production and unique properties of precipitated calcium carbonate (PCC). Chapter Two explores the potential for increasing the efficiency of doxorubicin delivery systems by means of transforming porous calcium carbonate vaterites into calcium phosphate structures. Chapters Three, Four, and Five each characterize calcium carbonate by different analytical methods. Chapter Three utilizes the X-ray fluorescence method, Chapter Four utilizes energy dispersive X-ray spectroscopy (EDS), and Chapter Five utilizes atomic force microscopy (AFM). Chapter Six is a mobile elements analysis of calcium carbonate by means of X-ray photoelectron spectroscopy (XPS) characterization. Finally, Chapter Seven is a characterization of calcium carbonate's mineral crystal structure using X-ray diffraction (XRD).

Author: Katayoon Mohseni
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Hatsuo Ishida
Publisher: Springer Science & Business Media
ISBN: 1489922512
Category : Science
Languages : en
Pages : 451

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This book is an extended version of the proceedings of the Symposium on Polymer Composites, Interfaces, which was held under the auspices of the Division of Polymer Chemistry, American Chemical Society (ACS) during the annual ACS meeting in Seattle, March, 1983. The importance of the interface in composite materials has been recognized since the inception of modern composite technology. Specifically, silane coupling agents were developed for glass fiber reinforced compOSites at a very early date. Ever since then the diversity of composite materials and the development of various surface treatment methods have led to the establishment of an "interface art." A trial-and-error approach has dominated the interfacial aspects of composite technology until very recently. With the advent of modern analytical techniques for surface characterization, it became possible to study detailed surface and interface structures. It was hoped that this symposium would catalyze such a fundamental and scientific approach in composite studies. For this reason, the symposium was structured to verify the influence of interfacial structures on the mechanical and physical performance of composites and to improve our knowledge of the microstructure of composite interfaces. As the word ·composite" indicates, interdisciplinary interaction is indispensable for proper understanding of multiphase systems.

Author: Andrei S. Dukhin
Publisher: Elsevier
ISBN: 0080543367
Category : Science
Languages : en
Pages : 383

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Two key words define the scope of this book: 'ultrasound' and 'colloids'. Historically, there has been little real communication between disciples of these two fields. Although there is a large body of literature devoted to ultrasound phenomenon in colloids, there is little recognition that such phenomena may be of real importance for both the development, and application, of Colloid Science. From the other side, colloid scientists have not embraced acoustics as an important tool for characterizing colloids. The lack of any serious dialogue between these scientific fields is the biggest motivation behind this book. For colloidal systems, ultrasound provides information on three important areas of particle characterization: Particle sizing, Rheology, and Electrokinetics. This book primarily targets scientists who consider colloids as their major object of interest. As such we emphasize those aspects of acoustics that are important for colloids, and thereby neglect many others. On the other hand, scientists working with ultrasound who are already familiar with the subject will find several important new developments.

Author: Justin E. Mulloney
Publisher:
ISBN:
Category : Ammonium chloride
Languages : en
Pages :

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Book Description
Ottawa 50/70 sand specimens and natural beach sand samples were treated using bio-augmented geomicrobies via a surface percolation technique. Testing was conducted on these specimens to determine how resultant calcium carbonate precipitation changed as a function of temperature, depth from the surface, and in the presence of magnesium. Specifically, x-ray Diffraction (XRD), a Scanning Electron Microscope (SEM), and Energy Dispersive X-ray Spectroscopy (EDS) were used to determine and quantify the presence of calcium carbonate and its associated phase. Results showed a direct relationship between temperature and precipitated calcium carbonate. In addition, as an unintended consequence associated with the treatment, ammonium chloride was produced. This ammonium chloride appears to mostly have formed upon the specimens' surfaces, and its quantity appears to be inversely proportional to the quantity of precipitated calcium carbonate. This result has important implications in upscaling in the sense that the results imply that there may be some benefits associated with reducing ammonium chloride precipitation during the microbial reaction. The addition of magnesium led to inconclusive results in the sense that very little calcification was observed during this portion of the study.

Author:
Publisher: A.Azziz Al-Naggar
ISBN:
Category :
Languages : en
Pages : 114

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Candidates for this course are recommended to attend the following:- 1- A course for carbonate reservoir characterization due its sever heterogeneity. 2- Surface geological field trips for carbonate exposures. 3- To visit sites of recent carbonate (reefs) preferably by a sub marine glass boat to observe the variation in reef distribution and growth within the same locality.

Author: Roger Rothon
Publisher: Springer
ISBN: 9783319281162
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
This handbook provides an introduction to and reference information about the science behind the production and use of particulate fillers in polymer applications. Fillers play an important role and are used with practically all types of polymers: thermoplastics, thermosets, elastomers.Readers will find an introduction to the topic of particulate fillers for polymer applications and their importance. The first chapters describe the use and characteristics of fillers in different polymer types, such as thermoplastics, thermosets and elastomers. The following chapters compile and summarize comprehensive information about different filler materials which find application nowadays, including mineral fillers (for example feldspars, wollastonites, and many more) and inorganic fillers (barium sulphate, or clays), bio-fillers, recycled and sustainable fillers, and fillers for specific applications (for example flame-retardant fillers, fillers for electrically conductive applications, or thermally conductive additives).Offering key information, compiled by a mixed team of authors from academia and industry, this handbook will appeal to researchers and professionals working on and with particulate polymer fillers alike.

Author: Terrance E. Conners
Publisher: CRC Press
ISBN: 1000696553
Category : Science
Languages : en
Pages : 412

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Book Description
First published in 1995, Surface Analysis of Paper examines surface analysis techniques from a paper industry perspective and places heavy emphasis on applications. Modern techniques, including ion mass spectrometry, infrared spectroscopy, and optical profilometry are reviewed in a straightforward manner. This new book provides details on widely used methods and instruments, and discusses how they can be used to attain, for example, contour maps of the microscopic constituents on paper surfaces and accurate analyses of the physical properties of paper. Organized into three sections, Surface Analysis of Paper provides thorough coverage of the physical characteristics of paper, and a clear picture of new and emerging analytical methods. Carefully chosen background material on fundamental concepts is included wherever such material assists in understanding the uses of analysis methods. Each chapter contains: An introduction A description of the technique A discussion of the type of information that can be obtained with the particular technique Practical examples to demonstrate the advantages of the technique