The Effects Of Sio2 Nanoparticles In Toughened Epoxy Resins And Fiber Reinforced Composites

This work shows how the properties of cured epoxy resins are improved significantly by the addition of surface-modified silica nanoparticles. Addition of nanosilica typically linearly increases both the modulus and the fracture toughness, and compressive strength and fatigue performance can be improved significantly as well. Combining this modification with the classic toughening concept using reactive liquid rubbers or core-shell elastomers leads to hybrid systems, which are characterized by high toughness and stiffness, with further-improved fatigue performance. Laminates manufactured by using these modified resins exhibit improved performance as well. For the fatigue performance of laminates made from hybrid resins a tenfold increase in cyclic loadings upon failure can be achieved. This makes them especially suitable for highly stressed composites parts such as in automotive applications, aerospace, or wind energy.

This book summarizes recent advances in the fabrication methods, properties, and applications of various ceramic-filled polymer matrix composites. Surface-modification methods and chemical functionalization of the ceramic fillers are explored in detail, and the outstanding thermal and mechanical properties of polymer–ceramic composites, the modeling of some of their thermal and mechanical parameters, and their major potential applications are discussed along with detailed examples. Aimed at researchers, industry professionals, and advanced students working in materials science and engineering, this work offering a review of a vast number of references in the polymer–ceramic field, this work helps readers easily advance their research and understanding of the field.

Fillers and Reinforcements for Advanced Nanocomposites reviews cutting-edge, state-of-the-art research on the effective use of nanoscaled fillers and reinforcements to enhance the performance of advanced nanocomposites, both in industrial and manufacturing applications. It covers a broad range of topics such as nanocelluloses, nanotubes, nanoplatelets, and nanoparticles, as well as their extensive applications. The chapters provide detailed information on how fillers and reinforcements are used in the fabrication, synthesis and characterization of advanced nanocomposites to achieve extraordinary performance of new materials and significant enhancements in their mechanical, thermal, structural and multi-functional properties. It also highlights new technologies for the fabrication of advanced nanocomposites using innovative electrospinning techniques. Covers topics such as nanocelluloses, nanotubes, nanoplatelets, and nanoparticles, as well as their extensive applications Discusses the latest research on the effective use of nanoscaled fillers and reinforcements to enhance the performance of advanced nanocomposites Explains how fillers and reinforcements are used in the fabrication, synthesis and characterization of advanced nanocomposites

A comprehensive and interdisciplinary resource filled with strategic insights, tools, and techniques for the design and construction of hybrid materials. Hybrid materials represent the best of material properties being combined for the development for materials with properties otherwise unavailable for application requirements. Novel Nanoscale Hybrid Materials is a comprehensive resource that contains contributions from a wide range of noted scientists from various fields, working on the hybridization of nanomolecules in order to generate new materials with superior properties. The book focuses on the new directions and developments in design and application of new materials, incorporating organic/inorganic polymers, biopolymers, and nanoarchitecture approaches. This book delves deeply into the complexities that arise when characteristics of a molecule change on the nanoscale, overriding the properties of the individual nanomolecules and generating new properties and capabilities altogether. The main topics cover hybrids of carbon nanotubes and metal nanoparticles, semiconductor polymer/biopolymer hybrids, metal biopolymer hybrids, bioorganic/inorganic hybrids, and much more. This important resource: Addresses a cutting-edge field within nanomaterials by presenting groundbreaking topics that address hybrid nanostructures Includes contributions from an interdisciplinary group of chemists, physicists, materials scientists, chemical and biomedical engineers Contains applications in a wide-range of fields—including biomedicine, energy, catalysis, green chemistry, graphene chemistry, and environmental science Offers expert commentaries that explore potential future avenues of future research trends Novel Nanoscale Hybrid Materials is an important resource for chemists, physicists, materials, chemical and biomedical engineers that offers the most recent developments and techniques in hybrid nanostructures.

Over recent years there has been a tremendous upsurge in interest in the fracture behaviour of polymers. One reason for this is the increas ing use of polymers in structural engineering applications, since in such circumstances it is essential to have as complete an understanding as possible of the polymer's fracture behaviour. This book is designed to meet the requirements of those who need to be informed of the latest developments in the field of polymer fracture. It is written particularly for research workers but it should also prove invaluable for advanced students taking final-year undergraduate or postgraduate courses. The main emphasis is upon the use of fracture mechanics in the study of polymer fracture but this approach is then developed to cover the micromechanisms of the fracture process. Particular prominence is given to the relationship between structure, mechanical properties and the mechanics and mechanisms of fracture. The first chapter is a brief introduction which has several aims. One is to introduce polymers to the reader who does not have a strong background in the subject and another is to provide background material that will be used at later stages. The book is then split into two main parts: the first deals with the mechanics and mechanisms whilst the second is concerned with materials. In Part I phenomena such as molecular fracture, fracture mechanics, shear yielding and crazing are covered from a general viewpoint.