Mechanochemical Synthesis of Composite Materials

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Mechanochemical treatment is one of the promising directions of the chemical and technological processes of obtaining a new substance as a result of the transformation of mechanical energy into the chemical-physical processes of system restructuring. The peculiarity of the state of solid matter because of intense mechanical action is determined not only by its destruction, i.e., dispersing and obtaining a powder material with a high and active surface, but also by the accumulation of defects in the entire volume of particles, which increases their reactivity. This book presents the results of many years of research on the mechanochemical synthesis of composites, consisting of inorganic and organic components, obtained by the scientific team at the Institute of Combustion Problems, Kazakhstan. It begins with the general ideas about the mechanochemical process and the phenomena and further discusses the main provisions of the structural rearrangement and modification of the surface of dispersible particles.

Author(s): Zulkhair A. Mansurov, Nina N. Mofa, Tlek A. Ketegenov, Bakhtiyar S. Sadykov
Publisher: Jenny Stanford Publishing
Year: 2022

Language: English
Pages: 464
City: Singapore

Cover
Half Title
Title Page
Copyright Page
Dedication
Table of Contents
Introduction
1. Basic Concepts and Representations of Mechanochemistry: Methods of Mechanical Action and Physicochemical Changes of the Substance
1.1 Historical Stages in the Development of Mechanochemistry as a Technological Process
1.2 Methods of Action and the Main Physicochemical Processes in the Mechanochemistry of Inorganic and Organic Substances
2. Mechanochemical Treatment, Activation, Synthesis, and Modification of the Surface of Particles of Inorganic Materials
2.1 Theoretical Basis of Crushing and Activation of Solids: Energy Intensity of Grinding Machines and Stored Energy of Materials Processed in Them
2.2 Physicochemical Processes of Substance Transformation during Mechanochemical Treatment
2.2.1 Deformation, Destruction, and Activation are the Main Stages in the Transformation of Matter under Mechanical Action
2.2.2 Models of Mechanochemical Processes: The Localization of Deformation and the Physicochemical Processes Accompanying It
2.2.3 Mechanisms of Initiation of Mechanochemical Reactions
2.2.4 Structural Rearrangement and Modification of the Surface of Dispersible Particles
2.3 Kinetics and Thermodynamics of Mechanochemical Treatment of Inorganic Materials
2.4 Features of Mechanochemistry of Organic Compounds and Systems of Inorganic and Organic Materials
3. Principles of Mechanochemical Activation in Technological Processes
3.1 The Influence of the Form of Grinding Bodies on the Parameters of Mechanochemical Treatment
3.2 Influence of the Coated Layer Thickness o nthe Parameters and Kinetics of Mechanical Activation
3.3 The Phenomenon of Abrasive-Reactive Wear in Mechanochemical Processes
3.4 The Effectiveness of the Implementation of the Abrasive-Reactive Wear in the Mechanochemical Processing of Mineral Raw Materials
4. Structural Changes of Silicon Dioxide under Thermal and Mechanical Impact
4.1 The Variety of Structural Forms and Features of the Surface Layers of Silicon Dioxide
4.2 Mechanochemistry of Quartz, Features of Structural Changes during Dispersion of Quartz—Surface Radicals and Their Transformation
4.3 Modification and Radical Polymerization of the Surface of Quartz Particles during Mechanochemical Processing
5. Activation and Modification of Quartz in Mechanical Reactors: Synthesis of Nanocomposition Quartz Particles Capsulated in Carbon-Containing Shells
5.1 Changes in the State, Structure, and Properties of Activated Quartz
5.2 Structure, State, and Properties of Quartz Powder after Mechanical Treatment with Modifiers
5.3 Morphological and Structural Features of Activated and Modified Quartz
5.3.1 Electron Microscopy of Modified Quartz
5.3.2 IR Spectroscopy of Activated and Modified Quartz
5.3.3 EPR, Mössbauer Spectroscopy and X-Ray Phase Analysis of Quartz Modified by Mechanochemical Processing
5.4 Features of Ferromagnetism of Quartz Powder Induced as a Result of Mechanochemical Processing
6. Theoretical Preconditions for Creation of Mechanochemical Synthesis of Composite Nanostructured Systems Based on Quartz
6.1 The Main Processes in Mechanochemistry of the Quartz Particle Modification
6.2 The Piezoelectric Effect of Quartz Is Part of the Process of Modifying the Surface of Particles with Organic Compounds
6.3 Simulation of the Process
7. Mechanochemical Synthesis of Disperse Composition Systems of Different Purpose
7.1 Composition Systems Quartz Core−Polymer Shell
7.2 Composite Systems Inorganic Core–Polymer Shell, Obtained by Mechanochemical Treatment of Calcite and Wollastonite
8. Mechanochemistry under the Conditions of Ultrasonic Treatment of Powder Systems
8.1 Ultrasonic Treatment of the Material Is a Way to Change the Structure and State and Obtaining Nanostructured Systems
8.2 Changes in the Structure, Properties, and Modification of Quartz and Calcite under the Influence of Ultrasound
8.3 Changes in the Structure, Properties, and Modification of Wollastonite under the Influence of Ultrasound
8.4 Simulation and Quantum-Chemical Calculations of the Formation of Surface Compounds in the Mechanochemical Synthesis of Hybrid Powder Nanocomposite Systems
8.4.1 Methods for Calculating the Electronic Structure of Molecules and Solids, Simulation and Quantum
8.4.2 Adsorption Complexes of Butanol and Urea on the Surface of Silica and Wollastonite
9. Mechanochemical Treatment and Modification of Metal Systems
9.1 Mechanochemical Treatment of Aluminum Powders with Organic Additives
9.2 Mechanochemical Activation of Aluminum Powders with Organic Modifiers in the Presence of Quartz
9.3 Study of Aluminum-Based Powders after MCT
9.4 Determination of the Activity of Modified Aluminum Powders
10. Fields of Application of Composite Materials Obtained Using MCT
10.1 Mechanochemical Synthesis of Multifunctional Sorbents Based on Nanostructured Composite Quartz-Containing Systems
10.1.1 Modified Quartz as a Sorbent Material for Water Purification from Various Types of Pollution
10.1.2 Magnetic Sorbents Obtained by Mechanochemical Treatment of Quartz-Containing Systems to Collect Oil from the Water Surface
10.2 Composite Systems with Fillers Modified by Mechanochemical and Ultrasonic Treatment
10.3 SH-Synthesis of Ceramic Materials Based on Pre-Activated and Modified Systems
10.3.1 The Main Macrokinetic Aspects of the Synthesis of SHS Systems and Methods of Process Control
10.3.2 Influence of Mechanochemical Treatment and Modification of Quartz, Calcite and Wollastonite on the Technological Combustion of Systems
10.3.4 SH-Synthesis of Composite Systems with Participation of Aluminum Modified during MCT
10.4 The Use of Energy-Intensive Powders Based on Aluminum, Obtained by Mechanochemical Treatment, in the Composition of Solid Rocket Fuels
Index