Download or read book Surface Modification of Nanoparticles and Nanotubes by Plasma Polymerization and Properties Characterization written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials have many special properties including a high surface energy and a high specific surface area. Those properties also cause the agglomeration of the nanomaterials. A useful strategy is to use surface modification to change the nanoparticles surface properties to minimize the agglomeration problem and meet other applications of functional materials. In the last two decades, much more research has been devoted to the surface modification of nanomaterials. Plasma polymerization is the one of the main methods of surface modification of particles and has many benefits. However few publications investigate on the surface modification of nanoparticles by this method. In this thesis, two studies are done. In the first part (this part is finished under the guidance of Dr. William van Ooij and in his lab), a pyrrole-coated nano ZnO powder was prepared by plasma polymerization. The surface properties, microhardness and sinteriblity of pyrrole coated ZnO nanoparticles treated by plasma polymerization under different temperatures are studied. Those studies showed that at a suitable treatment temperature and time, the coated nanopaticles increase the surface microhardness and the modified nanoparticles change their surface properties from hydrophilic to hydrophobic. Higher pressure and higher treatment temperature during pellet compaction give higher mechanical properties. The polymer coating improves the sinteribility at low temperature. To achieve good mechanical properties, the polymer-coated nanoparticles need to be treated in a faster sintering and lower temperature environment. In the second part, the Carbon Nanofibers (CNF) are coated using two plasma power conditions. The relationship between the mechanical properties, mainly tensile strength and Young's Modulus, and the dispersion time using ultrasonication and the carbon nanofiber concentration are studied. The coating is also characterized by Differential Scanning Calorimeters (DSC), Thermogravimetric Analysis (TGA), Transmission Electron Microscopy (TEM), Time-of-flight Secondary Ion Mass Spectroscopy (TOF-SIMS), and Infrared Spectroscopy (IR). The results showed that plasma treated carbon nanofiber cast in a polymer matrix had better tensile strength and Young's modulus comparing to the untreated carbon nanofiber if ultarsonication at relative shorter time. For the current experiment condition, 100w plasma power coated CNF cast in a polymer has better mechanical properties than that of 10w plasma power.

Download or read book Plasma Modification of Polyolefins written by N. S. Baneesh and published by Springer Nature. This book was released on 2021-11-22 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses plasma modification of polyolefin surfaces. It comprises 21 chapters divided into three major sections. The first section covers the different techniques used for plasma modification of polyolefin surfaces and the effects of various gases as a surrounding medium, while the second provides a detailed analysis of the physics and chemistry of plasma modification and discusses various innovative characterization techniques, as well as ageing of the modified surface. It focuses on the analysis of changes in polymers’ surface chemistry using various spectroscopic techniques, and of changes in their surface morphology after plasma treatment using optical microscopy, electron microscopy and atomic force microscopy. In addition, it provides detailed information on the characterization of modified polymer surfaces. The book’s third and last section covers a range of applications of plasma-modified polyolefin surfaces varying from the packaging industry to the biomedical field, and shares valuable insights on the lifecycle analysis of plasma modification and modified surfaces.

Download or read book Plasma Surface Modification of Polymers written by Kash L Mittal and published by CRC Press. This book was released on 2019-12 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of invited papers (previously published in special issues of the Journal of Adhesion Science and Technology) written by internationally recognized researchers actively working in the field of plasma surface modification. It provides a current, comprehensive overview of the plasma treatment of polymers. In contrast to plasma polymerization, plasma surface modification reactions do not cause thin-film deposition, and can therefore only modify the surface properties of organic substrates. Plasma surface modifications are fast, efficient methods for improving the adhesion properties and other surface characteristics of a variety of polymeric materials. The focus of this volume is on adhesion phenomena, surface properties and the surface characterization of plasma-treated materials. This book opens with a critical review of the plasma surface modification of polymers for improved adhesion. The remainder of the papers are divided into two sections, one dealing with the characterization of plasma-treated surfaces and the second concerned with various practical applications of plasma-treated surfaces

Download or read book Polymer Properties written by Chander Amgoth and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herein, the various polymer properties and the underlying mechanism for the functionalization and surface modification of polymer nanoparticles have been discussed. There are numerous polymer particles designed and developed for various applications. The synthesis and characterization of different types of polymers followed by the engineering of nanoparticles and capsules depend on various factors. There are too many polymerization methods approached for the development of nanoparticles with desired surface properties. The ring-opening polymerization (ROP), emulsion polymerization (EP), atom transfer radical polymerization (ATRP), and free radical micro initiation are the significant approaches for the polymerization reactions. The polymer nanoparticle functionalization and modification of their surfaces based on requirements is an essential task. The solvent concentration, pH, temperature, and sonication have played a vital role to tune the morphology of polymer nanoparticles and capsules. Different characterizations such as FTIR, NMR (1H and 13C), HRMS, and MALDI-TOF are used for preliminary structural and confirmations. Further, SEM, FE-SEM, TEM, AFM, BET, XRD, Raman, EDAX, TGA-DSC, DLS, and zeta potential were used for morphological and thermal properties.

Download or read book Surface Treatments for Biological Chemical and Physical Applications written by Mehmet Gürsoy and published by John Wiley & Sons. This book was released on 2017-04-10 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: A step-by-step guide to the topic with a mix of theory and practice in the fields of biology, chemistry and physics. Straightforward and well-structured, the first chapter introduces fundamental aspects of surface treatments, after which examples from nature are given. Subsequent chapters discuss various methods to surface modification, including chemical and physical approaches, followed by the characterization of the functionalized surfaces. Applications discussed include the lotus effect, diffusion barriers, enzyme immobilization and catalysis. Finally, the book concludes with a look at future technology advances. Throughout the text, tutorials and case studies are used for training purposes to grant a deeper understanding of the topic, resulting in an essential reference for students as well as for experienced engineers in R&D.

Download or read book Surface Modification of Nanoparticle and Natural Fiber Fillers written by Vikas Mittal and published by John Wiley & Sons. This book was released on 2015-05-19 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the various methodologies for the surface treatment of different types of inorganic spherical and fibrous fillers, describing ball milling, cationic polymerization, vapor phase grafting, plasma treatment and UV irradiation in detail. In addition, the book connects the resulting composite properties to the modified filler surface properties, thus allowing for a purposeful, application-oriented composite design.

Download or read book Plasma based Synthesis and Modification of Nanomaterials written by Pawel Pohl and published by MDPI. This book was released on 2020-05-12 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, entitled “Plasma-Based Synthesis and Modification of Nanomaterials” is a collection of nine original research articles devoted to the application of different atmospheric pressure (APPs) and low-pressure (LPPs) plasmas for the synthesis or modification of various nanomaterials (NMs) of exceptional properties. These articles also show the structural and morphological characterization of the synthesized NMs and their further interesting and unique applications in different areas of science and technology. The readers interested in the capabilities of plasma-based treatments will quickly be convinced that APPs and LPPs enable one to efficiently synthesize or modify differentiated NMs using a minimal number of operations. Indeed, the presented procedures are eco-friendly and usually involve single-step processes, thus considerably lowering labor investment and costs. As a result, the production of new NMs and their functionalization is more straightforward and can be carried out on a much larger scale compared to other methods and procedures involving complex chemical treatments and processes. The size and morphology, as well as the structural and optical properties of the resulting NMs are tunable and tailorable. In addition to the desirable and reproducible physical dimensions, crystallinity, functionality, and spectral properties of the resultant NMs, the NMs fabricated and/or modified with the aid of APPs are commonly ready-to-use prior to their specific applications, without any initial pre-treatments.

Download or read book Surface Modification to Improve Properties of Materials written by Miran Mozetič and published by MDPI. This book was released on 2019-04-16 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains selected contributions on surface modification to improve the properties of solid materials. The surface properties are tailored either by functionalization, etching, or deposition of a thin coating. Functionalization is achieved by a brief treatment with non-equilibrium gaseous plasma containing suitable radicals that interact chemically with the material surface and thus enable the formation of rather stable functional groups. Etching is performed in order to modify the surface morphology. The etching parameters are selected in such a way that a rich morphology of the surfaces is achieved spontaneously on the sub-micrometer scale, without using masks. The combination of adequate surface morphology and functionalization of materials leads to superior surface properties which are particularly beneficial for the desired response upon incubation with biological matter. Alternatively, the materials are coated with a suitable thin film that is useful in various applications from food to aerospace industries.

Download or read book Polymer Nanoparticles for Nanomedicines written by Christine Vauthier and published by Springer. This book was released on 2017-01-07 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume serves as a valuable handbook for the development of nanomedicines made of polymer nanoparticles because it provides researchers, students, and entrepreneurs with all the material necessary to begin their own projects in this field. Readers will find protocols to prepare polymer nanoparticles using different methods, since these are based on the variety of experiences that experts encounter in the field. In addition, complex topics such as, the optimal characterization of polymer nanoparticles is discussed, as well as practical guidelines on how to formulate polymer nanoparticles into nanomedicines, and how to modify the properties of nanoparticles to give them the different functionalities required to become an efficient nanomedicine for different clinical applications. The book also discusses the translation of technology from research to practice, considering aspects related to industrialization of preparation and aspects of regulatory and clinical development.

Download or read book Role of Novel Drug Delivery Vehicles in Nanobiomedicine written by Rajeev K. Tyagi and published by BoD – Books on Demand. This book was released on 2020-02-26 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical Nanotechnology and Nanomedicine introduces non-experts to the world of nanomedicine and its evolving organizational infrastructure. Considering the fluid nature of nano breakthroughs and the delicate balance between benefits and consequences as they apply to medicine, readers at all levels will gain a practical, understandable base of information on these developments so that they may take the greatest advantage of them. This practical reference investigates the impact of nanotechnology on applications in medicine and biomedical sciences, and the broader societal and economic effects. Eschewing technological details, it focuses on enhancing awareness of the business, regulatory, and administrative aspects of medical applications. It gives readers a critical, balanced, and realistic evaluation of existing nanomedicine developments and future prospects and provides an ideal foundation upon which to plan and make decisions.

Download or read book Plasma Processes and Polymers written by Riccardo d'Agostino and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume compiles essential contributions to the most innovative fields of Plasma Processes and Polymers. High-quality contributions cover the fields of plasma deposition, plasma treatment of polymers and other organic compounds, plasma processes under partial vacuum and at atmospheric pressure, biomedical, textile, automotive, and optical applications as well as surface treatment of bulk materials, clusters, particles and powders. This unique collection of refereed papers is based on the best contributions presented at the 16th International Symposium on Plasma Chemistry in Taormina, Italy (ISPC-16, June 2003). A high class reference of relevance to a large audience in plasma community as well as in the area of its industrial applications.

Download or read book Surface Engineering written by Ashok Kumar and published by John Wiley & Sons. This book was released on 2013-10-07 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings from the 2002 TMS Annual Meeting address the scientific issues related to surface engineering phenomenon in synthesis, characterization, and application for all materials. This collection of papers provides a multidisciplinary discussion on surface-related phenomena by which materials performance may be enhanced through engineered interfaces and surface modification technologies. Applied experimental and theoretical aspects that highlight, develop, and utilize approaches to understand and improve surface phenomena are also included. A collection of papers from the 2002 TMS Annual Meeting and Exhibition held in Seattle, Washington, February 17-21, 2002.

Download or read book Surface Modification of Polymer Materials Via Plasma Treatment and Nanoparticles written by Yue Wang and published by . This book was released on 2011 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deposition of Extremely Thin Functional Films on Nanoparticle nanotube Surfaces by a Plasma Treatment written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been an increasing need and great interest in both the fundamental science and the cutting-edge technology to modify the surfaces of nanoparticles. Such a surface modification must be done at the nanoscale in terms of structure, composition, and uniformity. The great challenge therefore lies critically on the deposition of a film on the order of a few nanometers on the surfaces of the nanoparticles. In this thesis, the uniform deposition of ultrathin polymer films of 2-10 nm on the surfaces of nanoparticles and nanotubes by plasma polymerization was demonstrated. The deposited film can also be tailored to different compositions. High Resolution Electron Microscopy (HREM), Time-of-flight Secondary Ion Mass Spectroscopy (TOF-SIMS), Infrared Spectroscopy (IR) and other tests were used to confirm the polymer coating on the nanoparticle surfaces. Other tests, such as Contact Angle and ion exchange, were used to test the surface properties of the modified nanoparticles.

Download or read book Surface Modification of Polymer Substrate by Nanoparticles Via Solution based Method written by Yan Kang and published by . This book was released on 2012 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface modification is a good way to introduce desired physical, chemical or biological properties to materials without changing the characteristics of the bulk. Modifying polymer surfaces has drawn much attention because this process gives the potential to further increase the versatility of polymer materials. My work focuses on using colloidal nanoparticles to functionalize polyamide water treatment membranes and polycarbonate plastic sheets with nanoparticles with different purposes. Specifically, modifying polyamide membranes with colloidal copper nanoparticles or positively charged silica are described in the first part of this thesis. Coating polycarbonate sheets with positively charged silica nanoparticles is discussed in the second part. Fabrication and characterization of these nanoparticle functionalized substrates will be emphasized.

Download or read book Advanced Polymer Nanoparticles written by Vikas Mittal and published by CRC Press. This book was released on 2010-07-13 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer latex particles continue to become increasingly important in numerous commercial applications. Advanced synthesis techniques are the key to developing new functionality for nanoparticles. These methods make it possible to tailor the size, chemical composition, or properties of these particles, as well as the molecular weight of the polymer

Download or read book Dual Plasma Synthesis of Functionalized Metal Nanoparticles written by Jason Tavares and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: